[{"data":1,"prerenderedAt":19268},["ShallowReactive",2],{"navigation_docs":3,"-web-development-async-programming-nodejs-event-emitter":5074,"-web-development-async-programming-nodejs-event-emitter-surround":19263},[4,1707,2040,2512,2693,2819,3026,3148,3198,3255,3289,3415,3492,3506,3645,3939,4016,4749,4924,5017,5070],{"title":5,"icon":6,"path":7,"stem":8,"children":9},"C#","i-devicon-csharp","\u002Fcsharp","01.csharp",[10,13,60,90,120,202,219,253,379,404,457,650,1364,1654,1703],{"title":11,"path":7,"stem":12},"C# та .NET","01.csharp\u002Findex",{"title":14,"icon":15,"path":16,"stem":17,"children":18,"page":59},"Fundamentals","i-lucide-book-open","\u002Fcsharp\u002Ffundamentals","01.csharp\u002F01.fundamentals",[19,23,27,31,35,39,43,47,51,55],{"title":20,"path":21,"stem":22},"Вступ до екосистеми .NET","\u002Fcsharp\u002Ffundamentals\u002Fintroduction-to-ecosystem","01.csharp\u002F01.fundamentals\u002F01.introduction-to-ecosystem",{"title":24,"path":25,"stem":26},"Структура програми на C#","\u002Fcsharp\u002Ffundamentals\u002Fprogram-structure","01.csharp\u002F01.fundamentals\u002F02.program-structure",{"title":28,"path":29,"stem":30},"Змінні та Типи Даних","\u002Fcsharp\u002Ffundamentals\u002Fvariables-data-types","01.csharp\u002F01.fundamentals\u002F03.variables-data-types",{"title":32,"path":33,"stem":34},"Масиви","\u002Fcsharp\u002Ffundamentals\u002Farrays","01.csharp\u002F01.fundamentals\u002F04.arrays",{"title":36,"path":37,"stem":38},"Strings & Text Handling","\u002Fcsharp\u002Ffundamentals\u002Fstrings-text-handling","01.csharp\u002F01.fundamentals\u002F05.strings-text-handling",{"title":40,"path":41,"stem":42},"Дати і Час","\u002Fcsharp\u002Ffundamentals\u002Fdates-time-handling","01.csharp\u002F01.fundamentals\u002F06.dates-time-handling",{"title":44,"path":45,"stem":46},"Потік Керування","\u002Fcsharp\u002Ffundamentals\u002Fcontrol-flow","01.csharp\u002F01.fundamentals\u002F07.control-flow",{"title":48,"path":49,"stem":50},"Методи","\u002Fcsharp\u002Ffundamentals\u002Fmethods","01.csharp\u002F01.fundamentals\u002F08.methods",{"title":52,"path":53,"stem":54},"Основи Відлагодження","\u002Fcsharp\u002Ffundamentals\u002Fdebugging-basics","01.csharp\u002F01.fundamentals\u002F09.debugging-basics",{"title":56,"path":57,"stem":58},"Інтерактивна Консоль (Classic)","\u002Fcsharp\u002Ffundamentals\u002Finteractive-console","01.csharp\u002F01.fundamentals\u002F10.interactive-console",false,{"title":61,"icon":62,"path":63,"stem":64,"children":65,"page":59},"OOP","i-lucide-box","\u002Fcsharp\u002Foop","01.csharp\u002F02.oop",[66,70,74,78,82,86],{"title":67,"path":68,"stem":69},"Package Management (Управління Пакетами)","\u002Fcsharp\u002Foop\u002Fpackage-management","01.csharp\u002F02.oop\u002F01.package-management",{"title":71,"path":72,"stem":73},"Класи та Об'єкти","\u002Fcsharp\u002Foop\u002Fclasses-objects","01.csharp\u002F02.oop\u002F02.classes-objects",{"title":75,"path":76,"stem":77},"Властивості та Поля","\u002Fcsharp\u002Foop\u002Fproperties-fields","01.csharp\u002F02.oop\u002F03.properties-fields",{"title":79,"path":80,"stem":81},"Стовпи ООП","\u002Fcsharp\u002Foop\u002Foop-pillars","01.csharp\u002F02.oop\u002F04.oop-pillars",{"title":83,"path":84,"stem":85},"Advanced Types","\u002Fcsharp\u002Foop\u002Fadvanced-types","01.csharp\u002F02.oop\u002F05.advanced-types",{"title":87,"path":88,"stem":89},"Namespaces (Простори Імен)","\u002Fcsharp\u002Foop\u002Fnamespaces","01.csharp\u002F02.oop\u002F06.namespaces",{"title":91,"icon":92,"path":93,"stem":94,"children":95,"page":59},"Advanced Core","i-lucide-zap","\u002Fcsharp\u002Fadvanced-core","01.csharp\u002F03.advanced-core",[96,100,104,108,112,116],{"title":97,"path":98,"stem":99},"Generics (Узагальнення)","\u002Fcsharp\u002Fadvanced-core\u002Fgenerics","01.csharp\u002F03.advanced-core\u002F01.generics",{"title":101,"path":102,"stem":103},"Делегати, Події та Лямбда-вирази","\u002Fcsharp\u002Fadvanced-core\u002Fdelegates-events-lambdas","01.csharp\u002F03.advanced-core\u002F02.delegates-events-lambdas",{"title":105,"path":106,"stem":107},"Interfaces Deep Dive (Інтерфейси: Поглиблений Розгляд)","\u002Fcsharp\u002Fadvanced-core\u002Finterfaces-deep-dive","01.csharp\u002F03.advanced-core\u002F03.interfaces-deep-dive",{"title":109,"path":110,"stem":111},"Обробка Винятків","\u002Fcsharp\u002Fadvanced-core\u002Fexception-handling","01.csharp\u002F03.advanced-core\u002F04.exception-handling",{"title":113,"path":114,"stem":115},"Pattern Matching","\u002Fcsharp\u002Fadvanced-core\u002Fpattern-matching","01.csharp\u002F03.advanced-core\u002F05.pattern-matching",{"title":117,"path":118,"stem":119},"Додаткові Можливості C#","\u002Fcsharp\u002Fadvanced-core\u002Fadditional-features","01.csharp\u002F03.advanced-core\u002F06.additional-features",{"title":121,"icon":122,"path":123,"stem":124,"children":125,"page":59},"Architecture Best Practices","i-lucide-building-2","\u002Fcsharp\u002Farchitecture-best-practices","01.csharp\u002F04.architecture-best-practices",[126,130,149,153,157,161,165,169],{"title":127,"path":128,"stem":129},"Software Design Principles (Частина 1)","\u002Fcsharp\u002Farchitecture-best-practices\u002Fsoftware-design-principles","01.csharp\u002F04.architecture-best-practices\u002F01.software-design-principles",{"title":131,"icon":132,"path":133,"stem":134,"children":135,"page":59},"Design Patterns","i-lucide-folder","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdesign-patterns","01.csharp\u002F04.architecture-best-practices\u002F02.design-patterns",[136],{"title":137,"icon":132,"path":138,"stem":139,"children":140,"page":59},"Creational","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdesign-patterns\u002Fcreational","01.csharp\u002F04.architecture-best-practices\u002F02.design-patterns\u002Fcreational",[141,145],{"title":142,"path":143,"stem":144},"Singleton (Одинак)","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdesign-patterns\u002Fcreational\u002Fsingleton","01.csharp\u002F04.architecture-best-practices\u002F02.design-patterns\u002Fcreational\u002F01.singleton",{"title":146,"path":147,"stem":148},"Builder (Будівельник)","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdesign-patterns\u002Fcreational\u002Fbuilder","01.csharp\u002F04.architecture-best-practices\u002F02.design-patterns\u002Fcreational\u002F02.builder",{"title":150,"path":151,"stem":152},"Building Professional CLIs","\u002Fcsharp\u002Farchitecture-best-practices\u002Fbuilding-professional-clis","01.csharp\u002F04.architecture-best-practices\u002F03.building-professional-clis",{"title":154,"path":155,"stem":156},"Validation & Flow Control","\u002Fcsharp\u002Farchitecture-best-practices\u002Fvalidation-flow-control","01.csharp\u002F04.architecture-best-practices\u002F04.validation-flow-control",{"title":158,"path":159,"stem":160},"The Modern .NET Host (Microsoft.Extensions)","\u002Fcsharp\u002Farchitecture-best-practices\u002Fmodern-dotnet-host","01.csharp\u002F04.architecture-best-practices\u002F05.modern-dotnet-host",{"title":162,"path":163,"stem":164},"Data Mapper: Repository та DAO патерни (Частина 1)","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdata-mapper-part1","01.csharp\u002F04.architecture-best-practices\u002F06.data-mapper-part1",{"title":166,"path":167,"stem":168},"Data Mapper: Repository та DAO патерни (Частина 2)","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdata-mapper-part2","01.csharp\u002F04.architecture-best-practices\u002F07.data-mapper-part2",{"title":170,"icon":132,"path":171,"stem":172,"children":173,"page":59},"Di Ioc","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdi-ioc","01.csharp\u002F04.architecture-best-practices\u002F08.di-ioc",[174,178,182,186,190,194,198],{"title":175,"path":176,"stem":177},"Проблема залежностей та Інверсія Контролю","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdi-ioc\u002Fthe-dependency-problem","01.csharp\u002F04.architecture-best-practices\u002F08.di-ioc\u002F01.the-dependency-problem",{"title":179,"path":180,"stem":181},"Будуємо власний Service Container","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdi-ioc\u002Fbuild-your-own-container","01.csharp\u002F04.architecture-best-practices\u002F08.di-ioc\u002F02.build-your-own-container",{"title":183,"path":184,"stem":185},"Service Locator: Паттерн та Анти-паттерн","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdi-ioc\u002Fservice-locator-pattern","01.csharp\u002F04.architecture-best-practices\u002F08.di-ioc\u002F03.service-locator-pattern",{"title":187,"path":188,"stem":189},"Паттерни Dependency Injection","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdi-ioc\u002Fdependency-injection-patterns","01.csharp\u002F04.architecture-best-practices\u002F08.di-ioc\u002F04.dependency-injection-patterns",{"title":191,"path":192,"stem":193},"Microsoft DI: IServiceCollection та IServiceProvider","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdi-ioc\u002Fmicrosoft-di-deep-dive","01.csharp\u002F04.architecture-best-practices\u002F08.di-ioc\u002F05.microsoft-di-deep-dive",{"title":195,"path":196,"stem":197},"Service Lifetimes та Scopes","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdi-ioc\u002Fservice-lifetimes-and-scopes","01.csharp\u002F04.architecture-best-practices\u002F08.di-ioc\u002F06.service-lifetimes-and-scopes",{"title":199,"path":200,"stem":201},"DI Анти-паттерни та Найкращі Практики","\u002Fcsharp\u002Farchitecture-best-practices\u002Fdi-ioc\u002Fdi-anti-patterns-and-best-practices","01.csharp\u002F04.architecture-best-practices\u002F08.di-ioc\u002F07.di-anti-patterns-and-best-practices",{"title":203,"icon":132,"path":204,"stem":205,"children":206,"page":59},"Standard Library","\u002Fcsharp\u002Fstandard-library","01.csharp\u002F05.standard-library",[207,211,215],{"title":208,"path":209,"stem":210},"Collections (Колекції)","\u002Fcsharp\u002Fstandard-library\u002Fcollections","01.csharp\u002F05.standard-library\u002F01.collections",{"title":212,"path":213,"stem":214},"High Performance Types (Високопродуктивні Типи)","\u002Fcsharp\u002Fstandard-library\u002Fhigh-performance-types","01.csharp\u002F05.standard-library\u002F02.high-performance-types",{"title":216,"path":217,"stem":218},"LINQ (Language Integrated Query)","\u002Fcsharp\u002Fstandard-library\u002Flinq","01.csharp\u002F05.standard-library\u002F03.linq",{"title":220,"icon":221,"path":222,"stem":223,"children":224,"page":59},"System Internals Concurrency","i-lucide-server","\u002Fcsharp\u002Fsystem-internals-concurrency","01.csharp\u002F06.system-internals-concurrency",[225,229,233,237,241,245,249],{"title":226,"path":227,"stem":228},"Memory Management","\u002Fcsharp\u002Fsystem-internals-concurrency\u002Fmemory-management","01.csharp\u002F06.system-internals-concurrency\u002F01.memory-management",{"title":230,"path":231,"stem":232},"Reflection API: System.Type та Метадані","\u002Fcsharp\u002Fsystem-internals-concurrency\u002Freflection-fundamentals","01.csharp\u002F06.system-internals-concurrency\u002F02.reflection-fundamentals",{"title":234,"path":235,"stem":236},"Attributes та Dynamic Language Runtime","\u002Fcsharp\u002Fsystem-internals-concurrency\u002Fattributes-dynamic","01.csharp\u002F06.system-internals-concurrency\u002F03.attributes-dynamic",{"title":238,"path":239,"stem":240},"Expression Trees: Швидка Альтернатива Рефлексії","\u002Fcsharp\u002Fsystem-internals-concurrency\u002Fexpression-trees-compiled","01.csharp\u002F06.system-internals-concurrency\u002F04.expression-trees-compiled",{"title":242,"path":243,"stem":244},"Source Generators: Compile-Time Code Generation","\u002Fcsharp\u002Fsystem-internals-concurrency\u002Fsource-generators","01.csharp\u002F06.system-internals-concurrency\u002F05.source-generators",{"title":246,"path":247,"stem":248},"Multithreading Fundamentals","\u002Fcsharp\u002Fsystem-internals-concurrency\u002Fmultithreading-fundamentals","01.csharp\u002F06.system-internals-concurrency\u002F06.multithreading-fundamentals",{"title":250,"path":251,"stem":252},"Synchronization Primitives","\u002Fcsharp\u002Fsystem-internals-concurrency\u002Fsynchronization-primitives","01.csharp\u002F06.system-internals-concurrency\u002F07.synchronization-primitives",{"title":254,"icon":255,"path":256,"stem":257,"children":258,"page":59},"System Programming Windows","i-lucide-cpu","\u002Fcsharp\u002Fsystem-programming-windows","01.csharp\u002F07.system-programming-windows",[259,263,267,271,275,279,283,287,291,295,299,303,307,311,315,319,323,327,331,335,339,343,347,351,355,359,363,367,371,375],{"title":260,"path":261,"stem":262},"Як Працює Операційна Система","\u002Fcsharp\u002Fsystem-programming-windows\u002Fhow-os-works","01.csharp\u002F07.system-programming-windows\u002F01.how-os-works",{"title":264,"path":265,"stem":266},"Процеси в .NET — API та Запуск","\u002Fcsharp\u002Fsystem-programming-windows\u002Fprocesses-in-dotnet","01.csharp\u002F07.system-programming-windows\u002F02.processes-in-dotnet",{"title":268,"path":269,"stem":270},"Процеси в .NET — IPC та Міжпроцесна Комунікація","\u002Fcsharp\u002Fsystem-programming-windows\u002F02a.processes-ipc","01.csharp\u002F07.system-programming-windows\u002F02a.processes-ipc",{"title":272,"path":273,"stem":274},"Application Domains та Збірки — AppDomain і AssemblyLoadContext","\u002Fcsharp\u002Fsystem-programming-windows\u002Fappdomains-assemblies","01.csharp\u002F07.system-programming-windows\u002F03.appdomains-assemblies",{"title":276,"path":277,"stem":278},"Application Domains та Збірки — Plug-in Система з Hot-Reload","\u002Fcsharp\u002Fsystem-programming-windows\u002F03a.appdomains-plugin-system","01.csharp\u002F07.system-programming-windows\u002F03a.appdomains-plugin-system",{"title":280,"path":281,"stem":282},"Потоки — Основи та API Thread","\u002Fcsharp\u002Fsystem-programming-windows\u002Fthread-fundamentals","01.csharp\u002F07.system-programming-windows\u002F04.thread-fundamentals",{"title":284,"path":285,"stem":286},"Потоки — Lifecycle, Пріоритети та Безпечне Завершення","\u002Fcsharp\u002Fsystem-programming-windows\u002F04a.thread-lifecycle-priorities","01.csharp\u002F07.system-programming-windows\u002F04a.thread-lifecycle-priorities",{"title":288,"path":289,"stem":290},"Проблеми Спільного Стану — Race Condition та Data Race","\u002Fcsharp\u002Fsystem-programming-windows\u002Fshared-state-problems","01.csharp\u002F07.system-programming-windows\u002F05.shared-state-problems",{"title":292,"path":293,"stem":294},"Проблеми Спільного Стану — Memory Model та volatile","\u002Fcsharp\u002Fsystem-programming-windows\u002F05a.shared-state-memory-model","01.csharp\u002F07.system-programming-windows\u002F05a.shared-state-memory-model",{"title":296,"path":297,"stem":298},"Синхронізація — Monitor, lock та еволюція примітивів","\u002Fcsharp\u002Fsystem-programming-windows\u002Fsynchronization-fundamentals","01.csharp\u002F07.system-programming-windows\u002F06.synchronization-fundamentals",{"title":300,"path":301,"stem":302},"Синхронізація — Наскрізний Приклад та Deadlock Detection","\u002Fcsharp\u002Fsystem-programming-windows\u002F06a.synchronization-walkthrough","01.csharp\u002F07.system-programming-windows\u002F06a.synchronization-walkthrough",{"title":304,"path":305,"stem":306},"Синхронізація — Mutex, Semaphore та Event-Based Primitives","\u002Fcsharp\u002Fsystem-programming-windows\u002Fsynchronization-advanced","01.csharp\u002F07.system-programming-windows\u002F07.synchronization-advanced",{"title":308,"path":309,"stem":310},"Синхронізація — Interlocked, Volatile та Lock-Free Структури","\u002Fcsharp\u002Fsystem-programming-windows\u002F07a.synchronization-advanced-walkthrough","01.csharp\u002F07.system-programming-windows\u002F07a.synchronization-advanced-walkthrough",{"title":312,"path":313,"stem":314},"Interlocked, CAS та Lock-Free Структури","\u002Fcsharp\u002Fsystem-programming-windows\u002Finterlocked-cas-lockfree","01.csharp\u002F07.system-programming-windows\u002F08.interlocked-cas-lockfree",{"title":316,"path":317,"stem":318},"Volatile, Memory Model та Spinning","\u002Fcsharp\u002Fsystem-programming-windows\u002F08a.volatile-memory-model","01.csharp\u002F07.system-programming-windows\u002F08a.volatile-memory-model",{"title":320,"path":321,"stem":322},"ThreadPool — Пул Потоків для Ефективного Виконання","\u002Fcsharp\u002Fsystem-programming-windows\u002Fthread-pool","01.csharp\u002F07.system-programming-windows\u002F09.thread-pool",{"title":324,"path":325,"stem":326},"ThreadPool — Просунуті Сценарії та Внутрішня Будова","\u002Fcsharp\u002Fsystem-programming-windows\u002F09a.thread-pool-advanced","01.csharp\u002F07.system-programming-windows\u002F09a.thread-pool-advanced",{"title":328,"path":329,"stem":330},"Concurrent та Immutable Collections","\u002Fcsharp\u002Fsystem-programming-windows\u002Fconcurrent-collections","01.csharp\u002F07.system-programming-windows\u002F10.concurrent-collections",{"title":332,"path":333,"stem":334},"TPL, Task та Композиція — Від Thread до Task","\u002Fcsharp\u002Fsystem-programming-windows\u002Ftpl-parallel-plinq","01.csharp\u002F07.system-programming-windows\u002F11.tpl-parallel-plinq",{"title":336,"path":337,"stem":338},"Parallel Class та PLINQ — Data Parallelism","\u002Fcsharp\u002Fsystem-programming-windows\u002F11a.tpl-parallel-plinq-advanced","01.csharp\u002F07.system-programming-windows\u002F11a.tpl-parallel-plinq-advanced",{"title":340,"path":341,"stem":342},"Async\u002FAwait — Фундамент Асинхронного Програмування","\u002Fcsharp\u002Fsystem-programming-windows\u002Fasync-fundamentals","01.csharp\u002F07.system-programming-windows\u002F12.async-fundamentals",{"title":344,"path":345,"stem":346},"SynchronizationContext та ConfigureAwait — Контекст Виконання","\u002Fcsharp\u002Fsystem-programming-windows\u002Fasync-context-configureawait","01.csharp\u002F07.system-programming-windows\u002F13.async-context-configureawait",{"title":348,"path":349,"stem":350},"Async — Просунуті Паттерни","\u002Fcsharp\u002Fsystem-programming-windows\u002Fasync-advanced","01.csharp\u002F07.system-programming-windows\u002F14.async-advanced",{"title":352,"path":353,"stem":354},"System.Threading.Channels — Async Producer-Consumer","\u002Fcsharp\u002Fsystem-programming-windows\u002Fchannels","01.csharp\u002F07.system-programming-windows\u002F15.channels",{"title":356,"path":357,"stem":358},"Асинхронна Синхронізація","\u002Fcsharp\u002Fsystem-programming-windows\u002Fasync-synchronization","01.csharp\u002F07.system-programming-windows\u002F16.async-synchronization",{"title":360,"path":361,"stem":362},"Unsafe Code та Вказівники","\u002Fcsharp\u002Fsystem-programming-windows\u002Funsafe-code","01.csharp\u002F07.system-programming-windows\u002F17.unsafe-code",{"title":364,"path":365,"stem":366},"P\u002FInvoke та Windows API — Міст між .NET та Native Code","\u002Fcsharp\u002Fsystem-programming-windows\u002Fpinvoke-winapi","01.csharp\u002F07.system-programming-windows\u002F18.pinvoke-winapi",{"title":368,"path":369,"stem":370},"Реєстр Windows — Центральна База Конфігурації Системи","\u002Fcsharp\u002Fsystem-programming-windows\u002Fwindows-registry","01.csharp\u002F07.system-programming-windows\u002F19.windows-registry",{"title":372,"path":373,"stem":374},"Windows Hooks, Hotkeys та Services — Глибока Інтеграція з ОС","\u002Fcsharp\u002Fsystem-programming-windows\u002Fwindows-hooks-services","01.csharp\u002F07.system-programming-windows\u002F20.windows-hooks-services",{"title":376,"path":377,"stem":378},"Системне Програмування C# (Windows) — 07.system-programming-windows","\u002Fcsharp\u002Fsystem-programming-windows\u002Fimplementation_plan","01.csharp\u002F07.system-programming-windows\u002Fimplementation_plan",{"title":380,"icon":132,"path":381,"stem":382,"children":383,"page":59},"Io","\u002Fcsharp\u002Fio","01.csharp\u002F08.io",[384,388,392,396,400],{"title":385,"path":386,"stem":387},"8.1.1. Основи роботи з файловою системою","\u002Fcsharp\u002Fio\u002Ffile-system-basics","01.csharp\u002F08.io\u002F01.file-system-basics",{"title":389,"path":390,"stem":391},"8.1.2. Потоки (Streams) та Серіалізація Даних","\u002Fcsharp\u002Fio\u002Fstreams-serialization","01.csharp\u002F08.io\u002F02.streams-serialization",{"title":393,"path":394,"stem":395},"8.2.1. JSON Serialization з System.Text.Json","\u002Fcsharp\u002Fio\u002Fjson-serialization","01.csharp\u002F08.io\u002F03.json-serialization",{"title":397,"path":398,"stem":399},"8.2.2. XML Serialization та LINQ to XML","\u002Fcsharp\u002Fio\u002Fxml-serialization","01.csharp\u002F08.io\u002F04.xml-serialization",{"title":401,"path":402,"stem":403},"8.2.3. Binary Serialization: MessagePack та Protocol Buffers","\u002Fcsharp\u002Fio\u002Fbinary-serialization","01.csharp\u002F08.io\u002F05.binary-serialization",{"title":405,"icon":132,"path":406,"stem":407,"children":408,"page":59},"Ado Net","\u002Fcsharp\u002Fado-net","01.csharp\u002F09.ado-net",[409,413,417,421,425,429,433,437,441,445,449,453],{"title":410,"path":411,"stem":412},"9.1. Введення в ADO.NET","\u002Fcsharp\u002Fado-net\u002Fintroduction-to-adonet","01.csharp\u002F09.ado-net\u002F01.introduction-to-adonet",{"title":414,"path":415,"stem":416},"9.2. Клас DbConnection — з'єднання з базою даних","\u002Fcsharp\u002Fado-net\u002Fconnection","01.csharp\u002F09.ado-net\u002F02.connection",{"title":418,"path":419,"stem":420},"9.3. Клас DbCommand — виконання SQL-запитів","\u002Fcsharp\u002Fado-net\u002Fcommand-and-queries","01.csharp\u002F09.ado-net\u002F03.command-and-queries",{"title":422,"path":423,"stem":424},"9.4. Клас DbDataReader — ефективне читання даних","\u002Fcsharp\u002Fado-net\u002Fdatareader","01.csharp\u002F09.ado-net\u002F04.datareader",{"title":426,"path":427,"stem":428},"9.5. Параметризовані запити та захист від SQL Injection","\u002Fcsharp\u002Fado-net\u002Fparameters-and-sql-injection","01.csharp\u002F09.ado-net\u002F05.parameters-and-sql-injection",{"title":430,"path":431,"stem":432},"9.6. Транзакції в ADO.NET","\u002Fcsharp\u002Fado-net\u002Ftransactions","01.csharp\u002F09.ado-net\u002F06.transactions",{"title":434,"path":435,"stem":436},"9.7. DbProviderFactory — провайдер-незалежний код","\u002Fcsharp\u002Fado-net\u002Fprovider-factory","01.csharp\u002F09.ado-net\u002F07.provider-factory",{"title":438,"path":439,"stem":440},"9.8. Асинхронний доступ до даних","\u002Fcsharp\u002Fado-net\u002Fasync-data-access","01.csharp\u002F09.ado-net\u002F08.async-data-access",{"title":442,"path":443,"stem":444},"9.9. Від'єднаний режим: DataSet, DataTable, DataRow","\u002Fcsharp\u002Fado-net\u002Fdisconnected-mode-dataset","01.csharp\u002F09.ado-net\u002F09.disconnected-mode-dataset",{"title":446,"path":447,"stem":448},"9.10. DataAdapter — міст між DataSet та базою даних","\u002Fcsharp\u002Fado-net\u002Fdata-adapter","01.csharp\u002F09.ado-net\u002F10.data-adapter",{"title":450,"path":451,"stem":452},"9.11. Data Mapper та Repository: Архітектура доступу до даних","\u002Fcsharp\u002Fado-net\u002Fdata-mapper-repository","01.csharp\u002F09.ado-net\u002F11.data-mapper-repository",{"title":454,"path":455,"stem":456},"9.12. Identity Map, Unit of Work та Specification Pattern","\u002Fcsharp\u002Fado-net\u002Fadvanced-patterns","01.csharp\u002F09.ado-net\u002F12.advanced-patterns",{"title":458,"icon":255,"path":459,"stem":460,"children":461,"page":59},"Ef Core","\u002Fcsharp\u002Fef-core","01.csharp\u002F10.ef-core",[462,466,470,474,478,482,486,490,494,498,502,506,510,514,518,522,526,532,538,542,546,550,554,558,562,566,570,574,578,582,586,590,594,598,602,606,610,614,618,622,626,630,634,638,642,646],{"title":463,"path":464,"stem":465},"Що таке ORM? Від SQL до об'єктів","\u002Fcsharp\u002Fef-core\u002Fwhat-is-orm","01.csharp\u002F10.ef-core\u002F01.what-is-orm",{"title":467,"path":468,"stem":469},"Перший проєкт — від нуля до CRUD","\u002Fcsharp\u002Fef-core\u002Ffirst-project","01.csharp\u002F10.ef-core\u002F02.first-project",{"title":471,"path":472,"stem":473},"DbContext — Серце EF Core","\u002Fcsharp\u002Fef-core\u002Fdbcontext-deep-dive","01.csharp\u002F10.ef-core\u002F03.dbcontext-deep-dive",{"title":475,"path":476,"stem":477},"Провайдери баз даних — Архітектура та Вибір СУБД","\u002Fcsharp\u002Fef-core\u002Fdatabase-providers","01.csharp\u002F10.ef-core\u002F04.database-providers",{"title":479,"path":480,"stem":481},"Конвенції EF Core — Магія без конфігурації","\u002Fcsharp\u002Fef-core\u002Fconventions","01.csharp\u002F10.ef-core\u002F05.conventions",{"title":483,"path":484,"stem":485},"Fluent API та Data Annotations — Явна конфігурація моделі","\u002Fcsharp\u002Fef-core\u002Ffluent-api-vs-annotations","01.csharp\u002F10.ef-core\u002F06.fluent-api-vs-annotations",{"title":487,"path":488,"stem":489},"Зв'язки — One-to-One та One-to-Many","\u002Fcsharp\u002Fef-core\u002Frelationships-basics","01.csharp\u002F10.ef-core\u002F07.relationships-basics",{"title":491,"path":492,"stem":493},"Зв'язки Advanced — Many-to-Many та Складні Сценарії","\u002Fcsharp\u002Fef-core\u002Frelationships-advanced","01.csharp\u002F10.ef-core\u002F08.relationships-advanced",{"title":495,"path":496,"stem":497},"Властивості — Типи, Конвертери, Компаратори (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fproperty-configuration-part1","01.csharp\u002F10.ef-core\u002F09.property-configuration-part1",{"title":499,"path":500,"stem":501},"Властивості — Value Comparers, Generators, Shadow Properties (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fproperty-configuration-part2","01.csharp\u002F10.ef-core\u002F09.property-configuration-part2",{"title":503,"path":504,"stem":505},"Складні типи — Owned Types та Complex Types (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fcomplex-types-owned-part1","01.csharp\u002F10.ef-core\u002F10.complex-types-owned-part1",{"title":507,"path":508,"stem":509},"Складні типи — Complex Types, Keyless Entities, Порівняння (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fcomplex-types-owned-part2","01.csharp\u002F10.ef-core\u002F10.complex-types-owned-part2",{"title":511,"path":512,"stem":513},"JSON Columns — Складні дані у JSON (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fjson-columns-part1","01.csharp\u002F10.ef-core\u002F11.json-columns-part1",{"title":515,"path":516,"stem":517},"JSON Columns — Value Comparers, Індекси, Провайдери (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fjson-columns-part2","01.csharp\u002F10.ef-core\u002F11.json-columns-part2",{"title":519,"path":520,"stem":521},"Успадкування — Абстрактні класи та TPH (Частина 1)","\u002Fcsharp\u002Fef-core\u002Finheritance-part1","01.csharp\u002F10.ef-core\u002F12.inheritance-part1",{"title":523,"path":524,"stem":525},"Успадкування — TPT, TPC та Порівняння Стратегій (Частина 2)","\u002Fcsharp\u002Fef-core\u002Finheritance-part2","01.csharp\u002F10.ef-core\u002F12.inheritance-part2",{"title":527,"path":528,"stem":529,"children":530},"Індекси, Обмеження та Схема (Частина 1)","\u002Fcsharp\u002Fef-core\u002Findexes-constraints-part1","01.csharp\u002F10.ef-core\u002F13.indexes-constraints-part1",[531],{"title":527,"path":528,"stem":529},{"title":533,"path":534,"stem":535,"children":536},"Індекси, Обмеження та Схема (Частина 2)","\u002Fcsharp\u002Fef-core\u002Findexes-constraints-part2","01.csharp\u002F10.ef-core\u002F13.indexes-constraints-part2",[537],{"title":533,"path":534,"stem":535},{"title":539,"path":540,"stem":541},"Seed Data — Початкові Дані (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fseeding-part1","01.csharp\u002F10.ef-core\u002F14.seeding-part1",{"title":543,"path":544,"stem":545},"Seed Data — SQL-скрипти, Bogus та Стратегії (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fseeding-part2","01.csharp\u002F10.ef-core\u002F14.seeding-part2",{"title":547,"path":548,"stem":549},"Global Query Filters — Глобальні Фільтри (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fglobal-query-filters-part1","01.csharp\u002F10.ef-core\u002F15.global-query-filters-part1",{"title":551,"path":552,"stem":553},"Global Query Filters — Підводні камені та Інтеграція (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fglobal-query-filters-part2","01.csharp\u002F10.ef-core\u002F15.global-query-filters-part2",{"title":555,"path":556,"stem":557},"LINQ-запити в EF Core (Частина 1)","\u002Fcsharp\u002Fef-core\u002Flinq-queries-part1","01.csharp\u002F10.ef-core\u002F16.linq-queries-part1",{"title":559,"path":560,"stem":561},"LINQ-запити в EF Core (Частина 2)","\u002Fcsharp\u002Fef-core\u002Flinq-queries-part2","01.csharp\u002F10.ef-core\u002F16.linq-queries-part2",{"title":563,"path":564,"stem":565},"Завантаження Пов'язаних Даних (Частина 1)","\u002Fcsharp\u002Fef-core\u002Floading-related-data-part1","01.csharp\u002F10.ef-core\u002F17.loading-related-data-part1",{"title":567,"path":568,"stem":569},"Завантаження Пов'язаних Даних (Частина 2)","\u002Fcsharp\u002Fef-core\u002Floading-related-data-part2","01.csharp\u002F10.ef-core\u002F17.loading-related-data-part2",{"title":571,"path":572,"stem":573},"Raw SQL, Views та Stored Procedures (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fraw-sql-part1","01.csharp\u002F10.ef-core\u002F18.raw-sql-part1",{"title":575,"path":576,"stem":577},"Raw SQL — Stored Procedures, DbFunction та Bulk Operations (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fraw-sql-part2","01.csharp\u002F10.ef-core\u002F18.raw-sql-part2",{"title":579,"path":580,"stem":581},"Продвинуті Запити — Compiled Queries, Bulk та Оптимізація (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fadvanced-queries-part1","01.csharp\u002F10.ef-core\u002F19.advanced-queries-part1",{"title":583,"path":584,"stem":585},"Продвинуті Запити — Query Tags, Bulk та Interceptors (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fadvanced-queries-part2","01.csharp\u002F10.ef-core\u002F19.advanced-queries-part2",{"title":587,"path":588,"stem":589},"Change Tracker — Відстеження Змін (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fchange-tracking-part1","01.csharp\u002F10.ef-core\u002F20.change-tracking-part1",{"title":591,"path":592,"stem":593},"Change Tracker — Графи Об'єктів та Disconnected (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fchange-tracking-part2","01.csharp\u002F10.ef-core\u002F20.change-tracking-part2",{"title":595,"path":596,"stem":597},"Збереження Даних та Транзакції (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fsaving-data-part1","01.csharp\u002F10.ef-core\u002F21.saving-data-part1",{"title":599,"path":600,"stem":601},"Збереження Даних — Concurrency та Outbox (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fsaving-data-part2","01.csharp\u002F10.ef-core\u002F21.saving-data-part2",{"title":603,"path":604,"stem":605},"Конкурентність та Блокування (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fconcurrency-part1","01.csharp\u002F10.ef-core\u002F22.concurrency-part1",{"title":607,"path":608,"stem":609},"Конкурентність — Дедлоки та Queue Processing (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fconcurrency-part2","01.csharp\u002F10.ef-core\u002F22.concurrency-part2",{"title":611,"path":612,"stem":613},"Міграції в EF Core — Основи (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fmigrations-basics-part1","01.csharp\u002F10.ef-core\u002F23.migrations-basics-part1",{"title":615,"path":616,"stem":617},"Міграції в EF Core — Основи (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fmigrations-basics-part2","01.csharp\u002F10.ef-core\u002F23.migrations-basics-part2",{"title":619,"path":620,"stem":621},"Міграції — Просунуті Сценарії (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fmigrations-advanced-part1","01.csharp\u002F10.ef-core\u002F24.migrations-advanced-part1",{"title":623,"path":624,"stem":625},"Міграції — Просунуті Сценарії (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fmigrations-advanced-part2","01.csharp\u002F10.ef-core\u002F24.migrations-advanced-part2",{"title":627,"path":628,"stem":629},"Управління Схемою та Database-First (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fschema-management-part1","01.csharp\u002F10.ef-core\u002F25.schema-management-part1",{"title":631,"path":632,"stem":633},"Управління Схемою та Database-First (Частина 2)","\u002Fcsharp\u002Fef-core\u002Fschema-management-part2","01.csharp\u002F10.ef-core\u002F25.schema-management-part2",{"title":635,"path":636,"stem":637},"Продуктивність EF Core — Основи (Частина 1)","\u002Fcsharp\u002Fef-core\u002Fperformance-fundamentals-part1","01.csharp\u002F10.ef-core\u002F26.performance-fundamentals-part1",{"title":639,"path":640,"stem":641},"Interceptors в EF Core (Частина 1)","\u002Fcsharp\u002Fef-core\u002Finterceptors-part1","01.csharp\u002F10.ef-core\u002F29.interceptors-part1",{"title":643,"path":644,"stem":645},"Interceptors в EF Core — Connection, Transaction та Materialization (Частина 2)","\u002Fcsharp\u002Fef-core\u002Finterceptors-part2","01.csharp\u002F10.ef-core\u002F29.interceptors-part2",{"title":647,"path":648,"stem":649},"План вивчення Entity Framework Core — Повний курс","\u002Fcsharp\u002Fef-core\u002Fimplementation_plan","01.csharp\u002F10.ef-core\u002Fimplementation_plan",{"title":651,"icon":652,"path":653,"stem":654,"children":655,"page":59},"ASP.NET","i-devicon-dotnetcore","\u002Fcsharp\u002Faspnet","01.csharp\u002F11.aspnet",[656,730,791,869,927,941,967,1057,1111,1182,1212,1289,1346],{"title":657,"icon":658,"path":659,"stem":660,"children":661,"page":59},"Minimal API","i-lucide-network","\u002Fcsharp\u002Faspnet\u002Fminimal-api","01.csharp\u002F11.aspnet\u002F01.minimal-api",[662,666,670,674,678,682,686,690,694,698,702,706,710,714,718,722,726],{"title":663,"path":664,"stem":665},"Вступ до ASP.NET та еволюція фреймворку","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Fintroduction","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F01.introduction",{"title":667,"path":668,"stem":669},"Перший додаток на ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Ffirst-application","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F02.first-application",{"title":671,"path":672,"stem":673},"WebApplication, Builder та Dependency Injection","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Fwebapplication-builder","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F03.webapplication-builder",{"title":675,"path":676,"stem":677},"Конвеєр запитів та Middleware","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Frequest-pipeline-middleware","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F04.request-pipeline-middleware",{"title":679,"path":680,"stem":681},"Маршрутизація в ASP.NET Core: Основи","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Frouting-basics","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F05.routing-basics",{"title":683,"path":684,"stem":685},"Маршрутизація в ASP.NET Core: Розширені можливості","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Frouting-advanced","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F06.routing-advanced",{"title":687,"path":688,"stem":689},"Статичні файли в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Fstatic-files","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F07.static-files",{"title":691,"path":692,"stem":693},"Статичні Активи: MapStaticAssets (ASP.NET Core 9.0)","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Fstatic-assets","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F08.static-assets",{"title":695,"path":696,"stem":697},"Конфігурація в ASP.NET Core: Основи","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Fconfiguration-fundamentals","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F09.configuration-fundamentals",{"title":699,"path":700,"stem":701},"Конфігурація: Паттерн Options","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Fconfiguration-options","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F10.configuration-options",{"title":703,"path":704,"stem":705},"Логування в ASP.NET Core: Основи","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Flogging-basics","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F11.logging-basics",{"title":707,"path":708,"stem":709},"Логування: Serilog та Middleware","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Flogging-advanced","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F12.logging-advanced",{"title":711,"path":712,"stem":713},"Управління станом: HttpContext.Items та Cookies","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Fstate-management","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F13.state-management",{"title":715,"path":716,"stem":717},"Стан сесії: Sessions","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Fsession-state","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F14.session-state",{"title":719,"path":720,"stem":721},"Структура проєкту: від хаосу до архітектури","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Fproject-structure","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F15.project-structure",{"title":723,"path":724,"stem":725},"Scalar у Minimal API: повний проєкт і Fluent OpenAPI","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Fscalar-openapi-fluent","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F16.scalar-openapi-fluent",{"title":727,"path":728,"stem":729},"Swagger \u002F Swashbuckle у Minimal API: окремий класичний шлях","\u002Fcsharp\u002Faspnet\u002Fminimal-api\u002Fswagger-swashbuckle","01.csharp\u002F11.aspnet\u002F01.minimal-api\u002F17.swagger-swashbuckle",{"title":731,"icon":658,"path":732,"stem":733,"children":734,"page":59},"API","\u002Fcsharp\u002Faspnet\u002Fapi","01.csharp\u002F11.aspnet\u002F02.api",[735,739,743,747,751,755,759,763,767,771,775,779,783,787],{"title":736,"path":737,"stem":738},"Що таке API. Клієнт-серверна архітектура","\u002Fcsharp\u002Faspnet\u002Fapi\u002Fwhat-is-api","01.csharp\u002F11.aspnet\u002F02.api\u002F01.what-is-api",{"title":740,"path":741,"stem":742},"Формати даних: JSON, XML, TOML та бінарні формати","\u002Fcsharp\u002Faspnet\u002Fapi\u002Fdata-formats","01.csharp\u002F11.aspnet\u002F02.api\u002F02.data-formats",{"title":744,"path":745,"stem":746},"Парадигми API та концепція REST","\u002Fcsharp\u002Faspnet\u002Fapi\u002Fapi-paradigms-rest","01.csharp\u002F11.aspnet\u002F02.api\u002F03.api-paradigms-rest",{"title":748,"path":749,"stem":750},"HTTP-методи, статус-коди та заголовки","\u002Fcsharp\u002Faspnet\u002Fapi\u002Fhttp-methods-status-codes","01.csharp\u002F11.aspnet\u002F02.api\u002F04.http-methods-status-codes",{"title":752,"path":753,"stem":754},"Організація HTTP API за принципами REST","\u002Fcsharp\u002Faspnet\u002Fapi\u002Frest-organizing","01.csharp\u002F11.aspnet\u002F02.api\u002F05.rest-organizing",{"title":756,"path":757,"stem":758},"Номенклатура URL та CRUD-операції","\u002Fcsharp\u002Faspnet\u002Fapi\u002Furl-nomenclature-crud","01.csharp\u002F11.aspnet\u002F02.api\u002F06.url-nomenclature-crud",{"title":760,"path":761,"stem":762},"Правила дизайну: іменування та стандарти","\u002Fcsharp\u002Faspnet\u002Fapi\u002Fapi-design-naming","01.csharp\u002F11.aspnet\u002F02.api\u002F07.api-design-naming",{"title":764,"path":765,"stem":766},"Валідація, ліміти та обробка помилок","\u002Fcsharp\u002Faspnet\u002Fapi\u002Fapi-design-validation","01.csharp\u002F11.aspnet\u002F02.api\u002F08.api-design-validation",{"title":768,"path":769,"stem":770},"Обробка помилок у Minimal API","\u002Fcsharp\u002Faspnet\u002Fapi\u002Ferror-handling-http","01.csharp\u002F11.aspnet\u002F02.api\u002F09.error-handling-http",{"title":772,"path":773,"stem":774},"Ідемпотентність та синхронізація стану","\u002Fcsharp\u002Faspnet\u002Fapi\u002Fidempotency-sync","01.csharp\u002F11.aspnet\u002F02.api\u002F10.idempotency-sync",{"title":776,"path":777,"stem":778},"Пагінація та організація списків","\u002Fcsharp\u002Faspnet\u002Fapi\u002Fpagination-lists","01.csharp\u002F11.aspnet\u002F02.api\u002F11.pagination-lists",{"title":780,"path":781,"stem":782},"Безпека API, кешування та інтернаціоналізація","\u002Fcsharp\u002Faspnet\u002Fapi\u002Fsecurity-auth","01.csharp\u002F11.aspnet\u002F02.api\u002F12.security-auth",{"title":784,"path":785,"stem":786},"Процес проєктування API та документування","\u002Fcsharp\u002Faspnet\u002Fapi\u002Fapi-design-process","01.csharp\u002F11.aspnet\u002F02.api\u002F13.api-design-process",{"title":788,"path":789,"stem":790},"OpenAPI: контракт, специфікація та документація API","\u002Fcsharp\u002Faspnet\u002Fapi\u002Fopenapi","01.csharp\u002F11.aspnet\u002F02.api\u002F14.openapi",{"title":792,"icon":793,"path":794,"stem":795,"children":796,"page":59},"Auth","i-lucide-shield-check","\u002Fcsharp\u002Faspnet\u002Fauth","01.csharp\u002F11.aspnet\u002F03.auth",[797,801,805,809,813,817,821,825,829,833,837,841,845,849,853,857,861,865],{"title":798,"path":799,"stem":800},"Основи аутентифікації та авторизації","\u002Fcsharp\u002Faspnet\u002Fauth\u002Fauth-fundamentals","01.csharp\u002F11.aspnet\u002F03.auth\u002F01.auth-fundamentals",{"title":802,"path":803,"stem":804},"JWT-аутентифікація","\u002Fcsharp\u002Faspnet\u002Fauth\u002Fjwt-authentication","01.csharp\u002F11.aspnet\u002F03.auth\u002F02.jwt-authentication",{"title":806,"path":807,"stem":808},"Авторизація: ролі, політики та resource-based доступ","\u002Fcsharp\u002Faspnet\u002Fauth\u002Fauthorization-policies","01.csharp\u002F11.aspnet\u002F03.auth\u002F03.authorization-policies",{"title":810,"path":811,"stem":812},"Cookie-аутентифікація та ASP.NET Core Identity","\u002Fcsharp\u002Faspnet\u002Fauth\u002Fcookie-auth-identity","01.csharp\u002F11.aspnet\u002F03.auth\u002F04.cookie-auth-identity",{"title":814,"path":815,"stem":816},"JWT + Refresh Tokens (HttpOnly Cookie)","\u002Fcsharp\u002Faspnet\u002Fauth\u002F04b.identity-auth-jwt","01.csharp\u002F11.aspnet\u002F03.auth\u002F04b.identity-auth-jwt",{"title":818,"path":819,"stem":820},"Identity: Підтвердження Email та Скидання Пароля","\u002Fcsharp\u002Faspnet\u002Fauth\u002Fidentity-email-confirmation","01.csharp\u002F11.aspnet\u002F03.auth\u002F05.identity-email-confirmation",{"title":822,"path":823,"stem":824},"Identity: Двофакторна Аутентифікація (2FA)","\u002Fcsharp\u002Faspnet\u002Fauth\u002Fidentity-two-factor","01.csharp\u002F11.aspnet\u002F03.auth\u002F06.identity-two-factor",{"title":826,"path":827,"stem":828},"Identity: Внутрішня Архітектура та Кастомізація","\u002Fcsharp\u002Faspnet\u002Fauth\u002Fidentity-internals","01.csharp\u002F11.aspnet\u002F03.auth\u002F07.identity-internals",{"title":830,"path":831,"stem":832},"OAuth 2.0 та зовнішні провайдери","\u002Fcsharp\u002Faspnet\u002Fauth\u002Foauth-external-providers","01.csharp\u002F11.aspnet\u002F03.auth\u002F08.oauth-external-providers",{"title":834,"path":835,"stem":836},"Безпека на практиці: CORS, HTTPS та захист від атак","\u002Fcsharp\u002Faspnet\u002Fauth\u002Fsecurity-hardening","01.csharp\u002F11.aspnet\u002F03.auth\u002F09.security-hardening",{"title":838,"path":839,"stem":840},"Теорія OAuth 2.0: Поняття, Аналогії та Флоу","\u002Fcsharp\u002Faspnet\u002Fauth\u002Foauth-theory","01.csharp\u002F11.aspnet\u002F03.auth\u002F10.oauth-theory",{"title":842,"path":843,"stem":844},"OIDC, OAuth 2.0 та Keycloak в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Fauth\u002Foidc-keycloak","01.csharp\u002F11.aspnet\u002F03.auth\u002F10.oidc-keycloak",{"title":846,"path":847,"stem":848},"API Keys аутентифікація в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Fauth\u002Fapi-keys","01.csharp\u002F11.aspnet\u002F03.auth\u002F11.api-keys",{"title":850,"path":851,"stem":852},"Rate Limiting та Throttling в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Fauth\u002Frate-limiting","01.csharp\u002F11.aspnet\u002F03.auth\u002F12.rate-limiting",{"title":854,"path":855,"stem":856},"Refresh Token Rotation в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Fauth\u002Frefresh-token-rotation","01.csharp\u002F11.aspnet\u002F03.auth\u002F13.refresh-token-rotation",{"title":858,"path":859,"stem":860},"Certificate Authentication та mTLS в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Fauth\u002Fcertificate-auth","01.csharp\u002F11.aspnet\u002F03.auth\u002F14.certificate-auth",{"title":862,"path":863,"stem":864},"RBAC, ABAC та ReBAC в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Fauth\u002Frbac-abac-rebac","01.csharp\u002F11.aspnet\u002F03.auth\u002F15.rbac-abac-rebac",{"title":866,"path":867,"stem":868},"Multi-tenancy та ізоляція даних в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Fauth\u002Fmulti-tenancy","01.csharp\u002F11.aspnet\u002F03.auth\u002F16.multi-tenancy",{"title":870,"icon":871,"path":872,"stem":873,"children":874,"page":59},"Нотифікації","i-lucide-bell","\u002Fcsharp\u002Faspnet\u002Fnotifications","01.csharp\u002F11.aspnet\u002F04.notifications",[875,879,883,887,891,895,899,903,907,911,915,919,923],{"title":876,"path":877,"stem":878},"In-App нотифікації через базу даних","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Fin-app-database-notifications","01.csharp\u002F11.aspnet\u002F04.notifications\u002F01.in-app-database-notifications",{"title":880,"path":881,"stem":882},"Polling: Регулярний запит оновлень","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Fpolling","01.csharp\u002F11.aspnet\u002F04.notifications\u002F02.polling",{"title":884,"path":885,"stem":886},"Server-Sent Events: Однострімовий push від сервера","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Fserver-sent-events","01.csharp\u002F11.aspnet\u002F04.notifications\u002F03.server-sent-events",{"title":888,"path":889,"stem":890},"WebSockets: Двостороннє з'єднання в реальному часі","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Fwebsockets","01.csharp\u002F11.aspnet\u002F04.notifications\u002F04.websockets",{"title":892,"path":893,"stem":894},"SignalR: Абстракція над транспортами реального часу","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Fsignalr","01.csharp\u002F11.aspnet\u002F04.notifications\u002F05.signalr",{"title":896,"path":897,"stem":898},"Background Services: Фонові задачі в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Fbackground-services","01.csharp\u002F11.aspnet\u002F04.notifications\u002F06.background-services",{"title":900,"path":901,"stem":902},"Web Push нотифікації","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Fweb-push","01.csharp\u002F11.aspnet\u002F04.notifications\u002F07.web-push",{"title":904,"path":905,"stem":906},"Email нотифікації","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Femail-notifications","01.csharp\u002F11.aspnet\u002F04.notifications\u002F08.email-notifications",{"title":908,"path":909,"stem":910},"Порівняння підходів: Як вибрати правильну технологію нотифікацій","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Fchoosing-the-right-approach","01.csharp\u002F11.aspnet\u002F04.notifications\u002F09.choosing-the-right-approach",{"title":912,"path":913,"stem":914},"Hangfire: Надійне планування фонових задач","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Fhangfire","01.csharp\u002F11.aspnet\u002F04.notifications\u002F10.hangfire",{"title":916,"path":917,"stem":918},"Практика: Конвертація зображень у WebP через Hangfire","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Fhangfire-image-webp","01.csharp\u002F11.aspnet\u002F04.notifications\u002F11.hangfire-image-webp",{"title":920,"path":921,"stem":922},"Практика: Підготовка відео до HLS-стрімінгу через Hangfire","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Fhangfire-video-hls","01.csharp\u002F11.aspnet\u002F04.notifications\u002F12.hangfire-video-hls",{"title":924,"path":925,"stem":926},"Telegram-нотифікації: від одного повідомлення до масових розсилок і мульти-канального підходу","\u002Fcsharp\u002Faspnet\u002Fnotifications\u002Ftelegram-notifications","01.csharp\u002F11.aspnet\u002F04.notifications\u002F13.telegram-notifications",{"title":928,"icon":929,"path":930,"stem":931,"children":932,"page":59},"Інтернаціоналізація","i-lucide-languages","\u002Fcsharp\u002Faspnet\u002Fi18n","01.csharp\u002F11.aspnet\u002F05.i18n",[933,937],{"title":934,"path":935,"stem":936},"Інтернаціоналізація (i18n) у Minimal API: від A до Я","\u002Fcsharp\u002Faspnet\u002Fi18n\u002Finternationalization","01.csharp\u002F11.aspnet\u002F05.i18n\u002F01.internationalization",{"title":938,"path":939,"stem":940},"Humanizer: людиномовні рядки у .NET","\u002Fcsharp\u002Faspnet\u002Fi18n\u002Fhumanizer","01.csharp\u002F11.aspnet\u002F05.i18n\u002F02.humanizer",{"title":942,"icon":943,"path":944,"stem":945,"children":946,"page":59},"Кешування","i-lucide-layers","\u002Fcsharp\u002Faspnet\u002Fcaching","01.csharp\u002F11.aspnet\u002F06.caching",[947,951,955,959,963],{"title":948,"path":949,"stem":950},"Огляд кешування: чотири рівні і коли що обирати","\u002Fcsharp\u002Faspnet\u002Fcaching\u002Fcaching","01.csharp\u002F11.aspnet\u002F06.caching\u002F01.caching",{"title":952,"path":953,"stem":954},"IMemoryCache: кеш в оперативній пам'яті","\u002Fcsharp\u002Faspnet\u002Fcaching\u002Fmemory-cache","01.csharp\u002F11.aspnet\u002F06.caching\u002F02.memory-cache",{"title":956,"path":957,"stem":958},"IDistributedCache і Redis: розподілений кеш","\u002Fcsharp\u002Faspnet\u002Fcaching\u002Fdistributed-cache","01.csharp\u002F11.aspnet\u002F06.caching\u002F03.distributed-cache",{"title":960,"path":961,"stem":962},"Response Cache: HTTP-кешування через Cache-Control","\u002Fcsharp\u002Faspnet\u002Fcaching\u002Fresponse-cache","01.csharp\u002F11.aspnet\u002F06.caching\u002F04.response-cache",{"title":964,"path":965,"stem":966},"Output Cache: серверний кеш HTTP-відповідей (.NET 7+)","\u002Fcsharp\u002Faspnet\u002Fcaching\u002Foutput-cache","01.csharp\u002F11.aspnet\u002F06.caching\u002F05.output-cache",{"title":968,"icon":969,"path":970,"stem":971,"children":972,"page":59},"Тестування","i-lucide-test-tube","\u002Fcsharp\u002Faspnet\u002Ftesting","01.csharp\u002F11.aspnet\u002F07.testing",[973,977,981,985,989,993,997,1001,1005,1009,1013,1017,1021,1025,1029,1033,1037,1041,1045,1049,1053],{"title":974,"path":975,"stem":976},"Що таке тестування? Від інтуїції до науки","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fwhat-is-testing","01.csharp\u002F11.aspnet\u002F07.testing\u002F01.what-is-testing",{"title":978,"path":979,"stem":980},"Піраміда тестування — Стратегія, а не Догма","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Ftesting-pyramid","01.csharp\u002F11.aspnet\u002F07.testing\u002F02.testing-pyramid",{"title":982,"path":983,"stem":984},"Дві Школи Тестування — Лондон проти Детройту","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Ftesting-schools","01.csharp\u002F11.aspnet\u002F07.testing\u002F03.testing-schools",{"title":986,"path":987,"stem":988},"TDD та BDD — Тести як Дизайн-інструмент","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Ftdd-and-bdd","01.csharp\u002F11.aspnet\u002F07.testing\u002F04.tdd-and-bdd",{"title":990,"path":991,"stem":992},"Що саме тестувати — Техніки аналізу та Циклomatична складність","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fwhat-to-test","01.csharp\u002F11.aspnet\u002F07.testing\u002F05.what-to-test",{"title":994,"path":995,"stem":996},"Тестові Фреймворки — Навіщо вони і що всередині","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Ftest-frameworks","01.csharp\u002F11.aspnet\u002F07.testing\u002F06.test-frameworks",{"title":998,"path":999,"stem":1000},"xUnit — Факти, Теорії та Lifecycle тестів","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fxunit-basics","01.csharp\u002F11.aspnet\u002F07.testing\u002F07.xunit-basics",{"title":1002,"path":1003,"stem":1004},"xUnit Advanced — Fixtures, Кастомізація та Розширення","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fxunit-advanced","01.csharp\u002F11.aspnet\u002F07.testing\u002F08.xunit-advanced",{"title":1006,"path":1007,"stem":1008},"Moq — Глибоке занурення в мокування","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fmocking-with-moq","01.csharp\u002F11.aspnet\u002F07.testing\u002F09.mocking-with-moq",{"title":1010,"path":1011,"stem":1012},"Тестування Баз Даних — EF Core, SQLite та Testcontainers","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fdatabase-testing","01.csharp\u002F11.aspnet\u002F07.testing\u002F10.database-testing",{"title":1014,"path":1015,"stem":1016},"Integration Testing — Частина 1 [Теорія та WebApplicationFactory]","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fintegration-testing","01.csharp\u002F11.aspnet\u002F07.testing\u002F11.integration-testing",{"title":1018,"path":1019,"stem":1020},"Інтеграційне тестування — Практика","\u002Fcsharp\u002Faspnet\u002Ftesting\u002F11a.integration-testing-practice","01.csharp\u002F11.aspnet\u002F07.testing\u002F11a.integration-testing-practice",{"title":1022,"path":1023,"stem":1024},"Integration Testing — Частина 2 [Просунуті Сценарії та Testcontainers]","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fintegration-testing-advanced","01.csharp\u002F11.aspnet\u002F07.testing\u002F12.integration-testing-advanced",{"title":1026,"path":1027,"stem":1028},"Професійний Postman: Колекції, Змінні та GitHub Інтеграція","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fpostman-professional","01.csharp\u002F11.aspnet\u002F07.testing\u002F13.postman-professional",{"title":1030,"path":1031,"stem":1032},"HttpClient у Тестах Частина 1: Архітектура та MockHttpMessageHandler","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fhttpclient-testing","01.csharp\u002F11.aspnet\u002F07.testing\u002F14.httpclient-testing",{"title":1034,"path":1035,"stem":1036},"HttpClient у Тестах Частина 2: WireMock.Net та Resilience","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fwiremock-net","01.csharp\u002F11.aspnet\u002F07.testing\u002F15.wiremock-net",{"title":1038,"path":1039,"stem":1040},"Патерни та Анти-патерни Тестування: Test Smells","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Ftesting-patterns","01.csharp\u002F11.aspnet\u002F07.testing\u002F16.testing-patterns",{"title":1042,"path":1043,"stem":1044},"Просунуті інструменти: Time, Snapshots та Властивості","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fadvanced-testing-tools","01.csharp\u002F11.aspnet\u002F07.testing\u002F17.advanced-testing-tools",{"title":1046,"path":1047,"stem":1048},"Тестування Архітектури з NetArchTest","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Farchitecture-testing","01.csharp\u002F11.aspnet\u002F07.testing\u002F18.architecture-testing",{"title":1050,"path":1051,"stem":1052},"Тестування Продуктивності: BenchmarkDotNet, NBomber та k6","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fperformance-testing","01.csharp\u002F11.aspnet\u002F07.testing\u002F19.performance-testing",{"title":1054,"path":1055,"stem":1056},"Залишок плану для курсу \"Тестування ASP.NET Minimal API\"","\u002Fcsharp\u002Faspnet\u002Ftesting\u002Fremaining_plan","01.csharp\u002F11.aspnet\u002F07.testing\u002Fremaining_plan",{"title":1058,"icon":1059,"path":1060,"stem":1061,"children":1062,"page":59},"Платежі","i-lucide-credit-card","\u002Fcsharp\u002Faspnet\u002Fpayments","01.csharp\u002F11.aspnet\u002F08.payments",[1063,1067,1071,1075,1079,1083,1087,1091,1095,1099,1103,1107],{"title":1064,"path":1065,"stem":1066},"Основи платіжної інфраструктури","\u002Fcsharp\u002Faspnet\u002Fpayments\u002Fpayment-fundamentals","01.csharp\u002F11.aspnet\u002F08.payments\u002F01.payment-fundamentals",{"title":1068,"path":1069,"stem":1070},"Методи оплати в Україні","\u002Fcsharp\u002Faspnet\u002Fpayments\u002Fpayment-methods-ukraine","01.csharp\u002F11.aspnet\u002F08.payments\u002F02.payment-methods-ukraine",{"title":1072,"path":1073,"stem":1074},"PCI DSS та безпека платежів","\u002Fcsharp\u002Faspnet\u002Fpayments\u002Fpci-dss-security","01.csharp\u002F11.aspnet\u002F08.payments\u002F03.pci-dss-security",{"title":1076,"path":1077,"stem":1078},"Архітектура платіжної підсистеми","\u002Fcsharp\u002Faspnet\u002Fpayments\u002Fpayment-architecture","01.csharp\u002F11.aspnet\u002F08.payments\u002F04.payment-architecture",{"title":1080,"path":1081,"stem":1082},"Інтеграція LiqPay (ПриватБанк)","\u002Fcsharp\u002Faspnet\u002Fpayments\u002Fliqpay-integration","01.csharp\u002F11.aspnet\u002F08.payments\u002F05.liqpay-integration",{"title":1084,"path":1085,"stem":1086},"Інтеграція Monobank Acquiring API","\u002Fcsharp\u002Faspnet\u002Fpayments\u002Fmonobank-acquiring","01.csharp\u002F11.aspnet\u002F08.payments\u002F06.monobank-acquiring",{"title":1088,"path":1089,"stem":1090},"Інтеграція Stripe","\u002Fcsharp\u002Faspnet\u002Fpayments\u002Fstripe-integration","01.csharp\u002F11.aspnet\u002F08.payments\u002F07.stripe-integration",{"title":1092,"path":1093,"stem":1094},"Webhooks — глибоке занурення","\u002Fcsharp\u002Faspnet\u002Fpayments\u002Fwebhooks-deep-dive","01.csharp\u002F11.aspnet\u002F08.payments\u002F08.webhooks-deep-dive",{"title":1096,"path":1097,"stem":1098},"Підписки та рекурентні платежі","\u002Fcsharp\u002Faspnet\u002Fpayments\u002Fsubscriptions-recurring","01.csharp\u002F11.aspnet\u002F08.payments\u002F09.subscriptions-recurring",{"title":1100,"path":1101,"stem":1102},"Повернення коштів та диспути","\u002Fcsharp\u002Faspnet\u002Fpayments\u002Frefunds-disputes","01.csharp\u002F11.aspnet\u002F08.payments\u002F10.refunds-disputes",{"title":1104,"path":1105,"stem":1106},"Тестування платіжних інтеграцій","\u002Fcsharp\u002Faspnet\u002Fpayments\u002Ftesting-payments","01.csharp\u002F11.aspnet\u002F08.payments\u002F11.testing-payments",{"title":1108,"path":1109,"stem":1110},"Чекліст виходу в Production","\u002Fcsharp\u002Faspnet\u002Fpayments\u002Fproduction-checklist","01.csharp\u002F11.aspnet\u002F08.payments\u002F12.production-checklist",{"title":1112,"icon":1113,"items":1114,"path":1127,"stem":1128,"children":1129,"page":59},"Популярні бібліотеки","lucide:box",[1115,1116,1117,1118,1119,1120,1121,1122,1123,1124,1125,1126],"01.fluent-validation","02.mapster","03.erroror-result-pattern","04.serilog","05.mediatr","06.polly","07.health-checks","08.feature-management","09.fluent-email","10.quest-pdf","11.bogus","12.humanizer-guard","\u002Fcsharp\u002Faspnet\u002Flibraries","01.csharp\u002F11.aspnet\u002F09.libraries",[1130,1134,1138,1142,1146,1150,1154,1158,1162,1166,1170,1174,1178],{"title":1131,"path":1132,"stem":1133},"Валідація з FluentValidation в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Ffluent-validation","01.csharp\u002F11.aspnet\u002F09.libraries\u002F01.fluent-validation",{"title":1135,"path":1136,"stem":1137},"Маппінг об","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Fmapster","01.csharp\u002F11.aspnet\u002F09.libraries\u002F02.mapster",{"title":1139,"path":1140,"stem":1141},"Обробка помилок з ErrorOr та Result Pattern в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Ferroror-result-pattern","01.csharp\u002F11.aspnet\u002F09.libraries\u002F03.erroror-result-pattern",{"title":1143,"path":1144,"stem":1145},"Структуроване логування з Serilog в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Fserilog","01.csharp\u002F11.aspnet\u002F09.libraries\u002F04.serilog",{"title":1147,"path":1148,"stem":1149},"CQRS та Mediator з MediatR в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Fmediatr","01.csharp\u002F11.aspnet\u002F09.libraries\u002F05.mediatr",{"title":1151,"path":1152,"stem":1153},"Відмовостійкість з Polly в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Fpolly","01.csharp\u002F11.aspnet\u002F09.libraries\u002F06.polly",{"title":1155,"path":1156,"stem":1157},"Health Checks в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Fhealth-checks","01.csharp\u002F11.aspnet\u002F09.libraries\u002F07.health-checks",{"title":1159,"path":1160,"stem":1161},"Feature Management та Feature Flags в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Ffeature-management","01.csharp\u002F11.aspnet\u002F09.libraries\u002F08.feature-management",{"title":1163,"path":1164,"stem":1165},"Відправка Email з FluentEmail в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Ffluent-email","01.csharp\u002F11.aspnet\u002F09.libraries\u002F09.fluent-email",{"title":1167,"path":1168,"stem":1169},"Генерація PDF з QuestPDF в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Fquest-pdf","01.csharp\u002F11.aspnet\u002F09.libraries\u002F10.quest-pdf",{"title":1171,"path":1172,"stem":1173},"Генерація тестових даних з Bogus в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Fbogus","01.csharp\u002F11.aspnet\u002F09.libraries\u002F11.bogus",{"title":1175,"path":1176,"stem":1177},"Humanizer та Guard Clauses в ASP.NET Core","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Fhumanizer-guard","01.csharp\u002F11.aspnet\u002F09.libraries\u002F12.humanizer-guard",{"title":1179,"path":1180,"stem":1181},"План модуля 10.libraries — Популярні бібліотеки ASP.NET","\u002Fcsharp\u002Faspnet\u002Flibraries\u002Fplan","01.csharp\u002F11.aspnet\u002F09.libraries\u002Fplan",{"title":1183,"icon":1184,"path":1185,"stem":1186,"children":1187,"page":59},"Razor Pages","i-lucide-layout-template","\u002Fcsharp\u002Faspnet\u002Frazor-pages","01.csharp\u002F11.aspnet\u002F10.razor-pages",[1188,1192,1196,1200,1204,1208],{"title":1189,"path":1190,"stem":1191},"Від Minimal API до Razor Pages: концептуальний перехід","\u002Fcsharp\u002Faspnet\u002Frazor-pages\u002Ffrom-minimal-api","01.csharp\u002F11.aspnet\u002F10.razor-pages\u002F01.from-minimal-api",{"title":1193,"path":1194,"stem":1195},"PageModel: логіка сторінки Razor Pages","\u002Fcsharp\u002Faspnet\u002Frazor-pages\u002Fpage-model","01.csharp\u002F11.aspnet\u002F10.razor-pages\u002F02.page-model",{"title":1197,"path":1198,"stem":1199},"Razor синтаксис: шаблонізатор у .cshtml","\u002Fcsharp\u002Faspnet\u002Frazor-pages\u002Frazor-syntax","01.csharp\u002F11.aspnet\u002F10.razor-pages\u002F03.razor-syntax",{"title":1201,"path":1202,"stem":1203},"Tag Helpers: типізований HTML","\u002Fcsharp\u002Faspnet\u002Frazor-pages\u002Ftag-helpers","01.csharp\u002F11.aspnet\u002F10.razor-pages\u002F04.tag-helpers",{"title":1205,"path":1206,"stem":1207},"Форми і валідація: повний цикл обробки даних","\u002Fcsharp\u002Faspnet\u002Frazor-pages\u002Fforms-validation","01.csharp\u002F11.aspnet\u002F10.razor-pages\u002F05.forms-validation",{"title":1209,"path":1210,"stem":1211},"Практичний проєкт: TaskManager на Razor Pages","\u002Fcsharp\u002Faspnet\u002Frazor-pages\u002Fproject-task-manager","01.csharp\u002F11.aspnet\u002F10.razor-pages\u002F06.project-task-manager",{"title":1213,"path":1214,"stem":1215,"children":1216,"page":59},"ASP.NET Core MVC","\u002Fcsharp\u002Faspnet\u002Fmvc","01.csharp\u002F11.aspnet\u002F11.mvc",[1217,1221,1225,1229,1233,1237,1241,1245,1249,1253,1257,1261,1265,1269,1273,1277,1281,1285],{"title":1218,"path":1219,"stem":1220},"Патерн MVC: архітектура, що змінила веб","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fmvc-pattern","01.csharp\u002F11.aspnet\u002F11.mvc\u002F01.mvc-pattern",{"title":1222,"path":1223,"stem":1224},"Від Razor Pages до MVC: концептуальний перехід","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Ffrom-razor-pages","01.csharp\u002F11.aspnet\u002F11.mvc\u002F02.from-razor-pages",{"title":1226,"path":1227,"stem":1228},"Controllers та Actions: серце MVC","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fcontrollers-actions","01.csharp\u002F11.aspnet\u002F11.mvc\u002F03.controllers-actions",{"title":1230,"path":1231,"stem":1232},"Маршрутизація в MVC: Convention vs Attribute Routing","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Frouting-mvc","01.csharp\u002F11.aspnet\u002F11.mvc\u002F04.routing-mvc",{"title":1234,"path":1235,"stem":1236},"Model Binding: від HTTP до C#","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fmodel-binding","01.csharp\u002F11.aspnet\u002F11.mvc\u002F05.model-binding",{"title":1238,"path":1239,"stem":1240},"Views, ViewData, ViewBag, TempData і ViewModel","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fviews-viewdata-tempdata","01.csharp\u002F11.aspnet\u002F11.mvc\u002F06.views-viewdata-tempdata",{"title":1242,"path":1243,"stem":1244},"Filters: аспектно-орієнтоване програмування в MVC","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Ffilters","01.csharp\u002F11.aspnet\u002F11.mvc\u002F07.filters",{"title":1246,"path":1247,"stem":1248},"Areas: структурування великих застосунків","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fareas","01.csharp\u002F11.aspnet\u002F11.mvc\u002F08.areas",{"title":1250,"path":1251,"stem":1252},"View Components: повторювані незалежні блоки UI","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fview-components","01.csharp\u002F11.aspnet\u002F11.mvc\u002F09.view-components",{"title":1254,"path":1255,"stem":1256},"Display та Editor Templates","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fdisplay-editor-templates","01.csharp\u002F11.aspnet\u002F11.mvc\u002F10.display-editor-templates",{"title":1258,"path":1259,"stem":1260},"Валідація: IValidatableObject та FluentValidation","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fvalidation-advanced","01.csharp\u002F11.aspnet\u002F11.mvc\u002F11.validation-advanced",{"title":1262,"path":1263,"stem":1264},"HTMX: інтерактивність через HTML-атрибути","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fhtmx","01.csharp\u002F11.aspnet\u002F11.mvc\u002F12.htmx",{"title":1266,"path":1267,"stem":1268},"HTMX у ASP.NET Core MVC: серверна інтеграція","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fajax-htmx-mvc","01.csharp\u002F11.aspnet\u002F11.mvc\u002F13.ajax-htmx-mvc",{"title":1270,"path":1271,"stem":1272},"Практичний проєкт: Каталог товарів з HTMX","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fhtmx-project","01.csharp\u002F11.aspnet\u002F11.mvc\u002F14.htmx-project",{"title":1274,"path":1275,"stem":1276},"Завантаження та обробка файлів","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Ffile-upload","01.csharp\u002F11.aspnet\u002F11.mvc\u002F15.file-upload",{"title":1278,"path":1279,"stem":1280},"Глобалізація та Локалізація MVC","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fglobalization-localization","01.csharp\u002F11.aspnet\u002F11.mvc\u002F16.globalization-localization",{"title":1282,"path":1283,"stem":1284},"Підсумковий проєкт: Блог-платформа","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fmvc-project","01.csharp\u002F11.aspnet\u002F11.mvc\u002F17.mvc-project",{"title":1286,"path":1287,"stem":1288},"План курсу: ASP.NET Core MVC","\u002Fcsharp\u002Faspnet\u002Fmvc\u002Fplan","01.csharp\u002F11.aspnet\u002F11.mvc\u002Fplan",{"title":1290,"path":1291,"stem":1292,"children":1293,"page":59},"Web Api","\u002Fcsharp\u002Faspnet\u002Fweb-api","01.csharp\u002F11.aspnet\u002F12.web-api",[1294,1298,1302,1306,1310,1314,1318,1322,1326,1330,1334,1338,1342],{"title":1295,"path":1296,"stem":1297},"Від Minimal API до Controller-based API","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Ffrom-minimal-api-to-controllers","01.csharp\u002F11.aspnet\u002F12.web-api\u002F01.from-minimal-api-to-controllers",{"title":1299,"path":1300,"stem":1301},"ControllerBase, ActionResult\u003CT> та Response Types","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Fcontroller-base-actionresult","01.csharp\u002F11.aspnet\u002F12.web-api\u002F02.controller-base-actionresult",{"title":1303,"path":1304,"stem":1305},"Content Negotiation - JSON, XML та власні форматери","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Fcontent-negotiation","01.csharp\u002F11.aspnet\u002F12.web-api\u002F03.content-negotiation",{"title":1307,"path":1308,"stem":1309},"Версіонування API","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Fapi-versioning","01.csharp\u002F11.aspnet\u002F12.web-api\u002F04.api-versioning",{"title":1311,"path":1312,"stem":1313},"ProblemDetails та структурована обробка помилок","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Fproblemdetails-error-handling","01.csharp\u002F11.aspnet\u002F12.web-api\u002F05.problemdetails-error-handling",{"title":1315,"path":1316,"stem":1317},"Фільтри у Web API контексті","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Ffilters-for-api","01.csharp\u002F11.aspnet\u002F12.web-api\u002F06.filters-for-api",{"title":1319,"path":1320,"stem":1321},"Пагінація, фільтрація та сортування","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Fpagination-filtering-sorting","01.csharp\u002F11.aspnet\u002F12.web-api\u002F07.pagination-filtering-sorting",{"title":1323,"path":1324,"stem":1325},"HATEOAS та Resource Expansion","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Fhateoas-resource-expansion","01.csharp\u002F11.aspnet\u002F12.web-api\u002F08.hateoas-resource-expansion",{"title":1327,"path":1328,"stem":1329},"Гібридна архітектура - Minimal API + Controllers","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Fminimal-api-vs-controllers-hybrid","01.csharp\u002F11.aspnet\u002F12.web-api\u002F09.minimal-api-vs-controllers-hybrid",{"title":1331,"path":1332,"stem":1333},"Документація API - Swashbuckle, NSwag та генерація клієнтів","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Fapi-documentation-generation","01.csharp\u002F11.aspnet\u002F12.web-api\u002F10.api-documentation-generation",{"title":1335,"path":1336,"stem":1337},"Health Checks та моніторинг API","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Fhealth-checks-monitoring","01.csharp\u002F11.aspnet\u002F12.web-api\u002F11.health-checks-monitoring",{"title":1339,"path":1340,"stem":1341},"Підсумковий проєкт - Production-Ready REST API","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Fweb-api-project","01.csharp\u002F11.aspnet\u002F12.web-api\u002F12.web-api-project",{"title":1343,"path":1344,"stem":1345},"План курсу: ASP.NET Core Web API (Controllers)","\u002Fcsharp\u002Faspnet\u002Fweb-api\u002Fplan","01.csharp\u002F11.aspnet\u002F12.web-api\u002Fplan",{"title":1347,"icon":1348,"path":1349,"stem":1350,"children":1351,"page":59},"Моніторинг","i-lucide-activity","\u002Fcsharp\u002Faspnet\u002Fmonitoring","01.csharp\u002F11.aspnet\u002F13.monitoring",[1352,1356,1360],{"title":1353,"path":1354,"stem":1355},"Спостережуваність: від console.log до production-систем","\u002Fcsharp\u002Faspnet\u002Fmonitoring\u002Fobservability-intro","01.csharp\u002F11.aspnet\u002F13.monitoring\u002F01.observability-intro",{"title":1357,"path":1358,"stem":1359},"Health Checks: перший рівень observability","\u002Fcsharp\u002Faspnet\u002Fmonitoring\u002Fhealth-checks","01.csharp\u002F11.aspnet\u002F13.monitoring\u002F02.health-checks",{"title":1361,"path":1362,"stem":1363},"Вбудовані метрики .NET 10 та System.Diagnostics.Metrics","\u002Fcsharp\u002Faspnet\u002Fmonitoring\u002Fdotnet-metrics","01.csharp\u002F11.aspnet\u002F13.monitoring\u002F03.dotnet-metrics",{"title":1365,"icon":1366,"path":1367,"stem":1368,"children":1369,"page":59},"Desktop UI","i-lucide-app-window","\u002Fcsharp\u002Fdesktop-ui","01.csharp\u002F12.desktop-ui",[1370,1374,1378,1382,1386,1390,1394,1398,1402,1406,1410,1414,1418,1422,1426,1430,1434,1438,1442,1446,1450,1454,1458,1462,1466,1470,1474,1478,1482,1486,1490,1494,1498,1502,1506,1510,1514,1518,1522,1526,1530,1534,1538,1542,1546,1550,1554,1558,1562,1566,1570,1574,1578,1582,1586,1590,1594,1598,1602,1606,1610,1614,1618,1622,1626,1630,1634,1638,1642,1646,1650],{"title":1371,"path":1372,"stem":1373},"Що таке десктопна розробка?","\u002Fcsharp\u002Fdesktop-ui\u002Fwhat-is-desktop-dev","01.csharp\u002F12.desktop-ui\u002F01.what-is-desktop-dev",{"title":1375,"path":1376,"stem":1377},"Архітектура WPF — як влаштований графічний інтерфейс","\u002Fcsharp\u002Fdesktop-ui\u002Fwpf-architecture","01.csharp\u002F12.desktop-ui\u002F02.wpf-architecture",{"title":1379,"path":1380,"stem":1381},"Перший WPF-проєкт — від нуля до вікна","\u002Fcsharp\u002Fdesktop-ui\u002Ffirst-wpf-app","01.csharp\u002F12.desktop-ui\u002F03.first-wpf-app",{"title":1383,"path":1384,"stem":1385},"Перший Avalonia-проєкт: WPF для всіх платформ","\u002Fcsharp\u002Fdesktop-ui\u002F03a.first-avalonia-app","01.csharp\u002F12.desktop-ui\u002F03a.first-avalonia-app",{"title":1387,"path":1388,"stem":1389},"XAML: декларативний інтерфейс","\u002Fcsharp\u002Fdesktop-ui\u002Fxaml-basics","01.csharp\u002F12.desktop-ui\u002F04.xaml-basics",{"title":1391,"path":1392,"stem":1393},"Fluent UI у WPF — сучасний дизайн Windows 11","\u002Fcsharp\u002Fdesktop-ui\u002F04a.wpf-fluent-ui","01.csharp\u002F12.desktop-ui\u002F04a.wpf-fluent-ui",{"title":1395,"path":1396,"stem":1397},"WPF UI — сучасна бібліотека Fluent контролів","\u002Fcsharp\u002Fdesktop-ui\u002F04b.wpf-ui-library","01.csharp\u002F12.desktop-ui\u002F04b.wpf-ui-library",{"title":1399,"path":1400,"stem":1401},"HandyControl — велика бібліотека UI контролів для WPF","\u002Fcsharp\u002Fdesktop-ui\u002F04c.handycontrol-library","01.csharp\u002F12.desktop-ui\u002F04c.handycontrol-library",{"title":1403,"path":1404,"stem":1405},"Простори імен та ресурси XAML","\u002Fcsharp\u002Fdesktop-ui\u002Fxaml-namespaces-resources","01.csharp\u002F12.desktop-ui\u002F05.xaml-namespaces-resources",{"title":1407,"path":1408,"stem":1409},"XAML в Avalonia: ключові відмінності від WPF","\u002Fcsharp\u002Fdesktop-ui\u002F05a.avalonia-xaml-differences","01.csharp\u002F12.desktop-ui\u002F05a.avalonia-xaml-differences",{"title":1411,"path":1412,"stem":1413},"Розширення розмітки XAML (Markup Extensions)","\u002Fcsharp\u002Fdesktop-ui\u002Fxaml-markup-extensions","01.csharp\u002F12.desktop-ui\u002F06.xaml-markup-extensions",{"title":1415,"path":1416,"stem":1417},"Панелі Layout: StackPanel, WrapPanel, DockPanel","\u002Fcsharp\u002Fdesktop-ui\u002Flayout-panels-part1","01.csharp\u002F12.desktop-ui\u002F07.layout-panels-part1",{"title":1419,"path":1420,"stem":1421},"Grid, Canvas, UniformGrid","\u002Fcsharp\u002Fdesktop-ui\u002Flayout-panels-part2","01.csharp\u002F12.desktop-ui\u002F07.layout-panels-part2",{"title":1423,"path":1424,"stem":1425},"Просунуті техніки Layout","\u002Fcsharp\u002Fdesktop-ui\u002Flayout-advanced","01.csharp\u002F12.desktop-ui\u002F08.layout-advanced",{"title":1427,"path":1428,"stem":1429},"Адаптивний Layout та найкращі практики","\u002Fcsharp\u002Fdesktop-ui\u002Flayout-responsive","01.csharp\u002F12.desktop-ui\u002F09.layout-responsive",{"title":1431,"path":1432,"stem":1433},"Layout в Avalonia: відмінності та нові можливості","\u002Fcsharp\u002Fdesktop-ui\u002F09a.layout-avalonia","01.csharp\u002F12.desktop-ui\u002F09a.layout-avalonia",{"title":1435,"path":1436,"stem":1437},"Button, Image, ProgressBar та інші базові контроли","\u002Fcsharp\u002Fdesktop-ui\u002Fbasic-controls","01.csharp\u002F12.desktop-ui\u002F10.basic-controls",{"title":1439,"path":1440,"stem":1441},"Контроли в Avalonia: відмінності від WPF","\u002Fcsharp\u002Fdesktop-ui\u002F10a.controls-avalonia","01.csharp\u002F12.desktop-ui\u002F10a.controls-avalonia",{"title":1443,"path":1444,"stem":1445},"Текстові контроли — TextBlock, TextBox, RichTextBox","\u002Fcsharp\u002Fdesktop-ui\u002Ftext-controls","01.csharp\u002F12.desktop-ui\u002F11.text-controls",{"title":1447,"path":1448,"stem":1449},"Контроли вибору — CheckBox, RadioButton, ComboBox, ListBox, DatePicker","\u002Fcsharp\u002Fdesktop-ui\u002Fselection-controls","01.csharp\u002F12.desktop-ui\u002F12.selection-controls",{"title":1451,"path":1452,"stem":1453},"Content Model — GroupBox, Expander, TabControl, StatusBar","\u002Fcsharp\u002Fdesktop-ui\u002Fcontent-controls","01.csharp\u002F12.desktop-ui\u002F13.content-controls",{"title":1455,"path":1456,"stem":1457},"UI\u002FUX принципи десктопних застосунків","\u002Fcsharp\u002Fdesktop-ui\u002F13a.ui-ux-principles","01.csharp\u002F12.desktop-ui\u002F13a.ui-ux-principles",{"title":1459,"path":1460,"stem":1461},"Dependency Properties — Концепція та Value Resolution","\u002Fcsharp\u002Fdesktop-ui\u002Fdependency-properties-part1","01.csharp\u002F12.desktop-ui\u002F14.dependency-properties-part1",{"title":1463,"path":1464,"stem":1465},"Avalonia Property System — StyledProperty та DirectProperty","\u002Fcsharp\u002Fdesktop-ui\u002F14a.avalonia-property-system","01.csharp\u002F12.desktop-ui\u002F14a.avalonia-property-system",{"title":1467,"path":1468,"stem":1469},"Attached Properties — Властивості без меж","\u002Fcsharp\u002Fdesktop-ui\u002Fattached-properties","01.csharp\u002F12.desktop-ui\u002F15.attached-properties",{"title":1471,"path":1472,"stem":1473},"Routed Events — Маршрутизація подій у WPF","\u002Fcsharp\u002Fdesktop-ui\u002Frouted-events","01.csharp\u002F12.desktop-ui\u002F16.routed-events",{"title":1475,"path":1476,"stem":1477},"Data Binding — Від Code-Behind до Декларативності","\u002Fcsharp\u002Fdesktop-ui\u002Fdata-binding-basics-part1","01.csharp\u002F12.desktop-ui\u002F17.data-binding-basics-part1",{"title":1479,"path":1480,"stem":1481},"INotifyPropertyChanged — Живе оновлення UI","\u002Fcsharp\u002Fdesktop-ui\u002Fdata-binding-basics-part2","01.csharp\u002F12.desktop-ui\u002F17.data-binding-basics-part2",{"title":1483,"path":1484,"stem":1485},"Compiled Bindings в Avalonia — Безпека на етапі компіляції","\u002Fcsharp\u002Fdesktop-ui\u002F17a.avalonia-compiled-bindings","01.csharp\u002F12.desktop-ui\u002F17a.avalonia-compiled-bindings",{"title":1487,"path":1488,"stem":1489},"Просунутий Data Binding — ElementName, RelativeSource, MultiBinding","\u002Fcsharp\u002Fdesktop-ui\u002Fdata-binding-advanced","01.csharp\u002F12.desktop-ui\u002F18.data-binding-advanced",{"title":1491,"path":1492,"stem":1493},"Value Converters — Перетворення типів даних у Data Binding","\u002Fcsharp\u002Fdesktop-ui\u002Fvalue-converters","01.csharp\u002F12.desktop-ui\u002F19.value-converters",{"title":1495,"path":1496,"stem":1497},"Data Templates — Візуалізація об'єктів у WPF","\u002Fcsharp\u002Fdesktop-ui\u002Fdata-templates","01.csharp\u002F12.desktop-ui\u002F20.data-templates",{"title":1499,"path":1500,"stem":1501},"Collections Binding Part 1 — ObservableCollection та ItemsControl","\u002Fcsharp\u002Fdesktop-ui\u002Fcollections-binding-part1","01.csharp\u002F12.desktop-ui\u002F21.collections-binding-part1",{"title":1503,"path":1504,"stem":1505},"Collections Binding Part 2 — ICollectionView, Filtering, Sorting та Virtualization","\u002Fcsharp\u002Fdesktop-ui\u002Fcollections-binding-part2","01.csharp\u002F12.desktop-ui\u002F21.collections-binding-part2",{"title":1507,"path":1508,"stem":1509},"MVVM Pattern — Від Spaghetti Code до архітектури","\u002Fcsharp\u002Fdesktop-ui\u002Fmvvm-pattern","01.csharp\u002F12.desktop-ui\u002F22.mvvm-pattern",{"title":1511,"path":1512,"stem":1513},"ViewModel Implementation — Від BaseViewModel до валідації","\u002Fcsharp\u002Fdesktop-ui\u002Fviewmodel-implementation","01.csharp\u002F12.desktop-ui\u002F23.viewmodel-implementation",{"title":1515,"path":1516,"stem":1517},"Commands — Від event handlers до декларативних команд","\u002Fcsharp\u002Fdesktop-ui\u002Fcommands","01.csharp\u002F12.desktop-ui\u002F24.commands",{"title":1519,"path":1520,"stem":1521},"MVVM Toolkit — MVVM без boilerplate через Source Generators","\u002Fcsharp\u002Fdesktop-ui\u002Fmvvm-toolkit","01.csharp\u002F12.desktop-ui\u002F25.mvvm-toolkit",{"title":1523,"path":1524,"stem":1525},"Messenger Pattern — Комунікація між ViewModel без прямих посилань","\u002Fcsharp\u002Fdesktop-ui\u002Fmessenger-pattern","01.csharp\u002F12.desktop-ui\u002F26.messenger-pattern",{"title":1527,"path":1528,"stem":1529},"Стилі WPF — CSS для десктопу","\u002Fcsharp\u002Fdesktop-ui\u002Fstyles-basics","01.csharp\u002F12.desktop-ui\u002F27.styles-basics",{"title":1531,"path":1532,"stem":1533},"CSS-like стилі Avalonia","\u002Fcsharp\u002Fdesktop-ui\u002F27a.avalonia-css-styling","01.csharp\u002F12.desktop-ui\u002F27a.avalonia-css-styling",{"title":1535,"path":1536,"stem":1537},"Control Templates — Частина 1. Концепція та TemplateBinding","\u002Fcsharp\u002Fdesktop-ui\u002Fcontrol-templates-part1","01.csharp\u002F12.desktop-ui\u002F28.control-templates-part1",{"title":1539,"path":1540,"stem":1541},"Control Templates — Частина 2. Named Parts та ContentPresenter","\u002Fcsharp\u002Fdesktop-ui\u002Fcontrol-templates-part2","01.csharp\u002F12.desktop-ui\u002F28.control-templates-part2",{"title":1543,"path":1544,"stem":1545},"Control Themes в Avalonia — нова ера стилізації","\u002Fcsharp\u002Fdesktop-ui\u002F28a.avalonia-control-themes","01.csharp\u002F12.desktop-ui\u002F28a.avalonia-control-themes",{"title":1547,"path":1548,"stem":1549},"Triggers та Visual State Manager у WPF","\u002Fcsharp\u002Fdesktop-ui\u002Ftriggers-visual-states","01.csharp\u002F12.desktop-ui\u002F29.triggers-visual-states",{"title":1551,"path":1552,"stem":1553},"Pseudo-classes в Avalonia — замість WPF Triggers","\u002Fcsharp\u002Fdesktop-ui\u002F29a.avalonia-pseudo-classes","01.csharp\u002F12.desktop-ui\u002F29a.avalonia-pseudo-classes",{"title":1555,"path":1556,"stem":1557},"Теми та ресурсні словники у WPF","\u002Fcsharp\u002Fdesktop-ui\u002Fresources-themes","01.csharp\u002F12.desktop-ui\u002F30.resources-themes",{"title":1559,"path":1560,"stem":1561},"Avalonia Themes — Fluent Design та система тематизації","\u002Fcsharp\u002Fdesktop-ui\u002F30a.avalonia-themes-fluent","01.csharp\u002F12.desktop-ui\u002F30a.avalonia-themes-fluent",{"title":1563,"path":1564,"stem":1565},"Контроли колекцій — глибоке занурення","\u002Fcsharp\u002Fdesktop-ui\u002Fcollection-controls","01.csharp\u002F12.desktop-ui\u002F31.collection-controls",{"title":1567,"path":1568,"stem":1569},"DataGrid — колонки та базове відображення","\u002Fcsharp\u002Fdesktop-ui\u002Fdatagrid-part1","01.csharp\u002F12.desktop-ui\u002F32.datagrid-part1",{"title":1571,"path":1572,"stem":1573},"DataGrid — сортування, фільтрація, редагування","\u002Fcsharp\u002Fdesktop-ui\u002Fdatagrid-part2","01.csharp\u002F12.desktop-ui\u002F32.datagrid-part2",{"title":1575,"path":1576,"stem":1577},"TreeView та GridView","\u002Fcsharp\u002Fdesktop-ui\u002Ftreeview-listview","01.csharp\u002F12.desktop-ui\u002F33.treeview-listview",{"title":1579,"path":1580,"stem":1581},"Меню, Toolbar, ContextMenu, StatusBar","\u002Fcsharp\u002Fdesktop-ui\u002Fmenus-toolbars","01.csharp\u002F12.desktop-ui\u002F34.menus-toolbars",{"title":1583,"path":1584,"stem":1585},"Навігація та керування вікнами. Частина 1: вікна та сторінки","\u002Fcsharp\u002Fdesktop-ui\u002Fnavigation-windows-part1","01.csharp\u002F12.desktop-ui\u002F35.navigation-windows-part1",{"title":1587,"path":1588,"stem":1589},"Навігація та керування вікнами. Частина 2: MVVM-навігація","\u002Fcsharp\u002Fdesktop-ui\u002Fnavigation-windows-part2","01.csharp\u002F12.desktop-ui\u002F35.navigation-windows-part2",{"title":1591,"path":1592,"stem":1593},"Avalonia — Навігація та діалоги","\u002Fcsharp\u002Fdesktop-ui\u002F35a.avalonia-navigation-dialogs","01.csharp\u002F12.desktop-ui\u002F35a.avalonia-navigation-dialogs",{"title":1595,"path":1596,"stem":1597},"Діалоги та File Pickers у WPF","\u002Fcsharp\u002Fdesktop-ui\u002Fdialogs-file-pickers","01.csharp\u002F12.desktop-ui\u002F36.dialogs-file-pickers",{"title":1599,"path":1600,"stem":1601},"UserControl: компонентний підхід у WPF","\u002Fcsharp\u002Fdesktop-ui\u002Fuser-controls","01.csharp\u002F12.desktop-ui\u002F37.user-controls",{"title":1603,"path":1604,"stem":1605},"Custom Controls: Lookless Controls у WPF","\u002Fcsharp\u002Fdesktop-ui\u002Fcustom-controls","01.csharp\u002F12.desktop-ui\u002F38.custom-controls",{"title":1607,"path":1608,"stem":1609},"Avalonia TemplatedControl — Lookless Controls","\u002Fcsharp\u002Fdesktop-ui\u002F38a.avalonia-templated-controls","01.csharp\u002F12.desktop-ui\u002F38a.avalonia-templated-controls",{"title":1611,"path":1612,"stem":1613},"Анімації у WPF: Storyboard та Easing Functions","\u002Fcsharp\u002Fdesktop-ui\u002Fanimations-transitions","01.csharp\u002F12.desktop-ui\u002F39.animations-transitions",{"title":1615,"path":1616,"stem":1617},"Анімації в Avalonia","\u002Fcsharp\u002Fdesktop-ui\u002F39a.avalonia-animations","01.csharp\u002F12.desktop-ui\u002F39a.avalonia-animations",{"title":1619,"path":1620,"stem":1621},"2D Графіка та Мультимедіа у WPF","\u002Fcsharp\u002Fdesktop-ui\u002Fmedia-graphics","01.csharp\u002F12.desktop-ui\u002F40.media-graphics",{"title":1623,"path":1624,"stem":1625},"Dependency Injection у WPF та Avalonia","\u002Fcsharp\u002Fdesktop-ui\u002Fdi-integration","01.csharp\u002F12.desktop-ui\u002F41.di-integration",{"title":1627,"path":1628,"stem":1629},"SQLite та EF Core у десктопних додатках","\u002Fcsharp\u002Fdesktop-ui\u002Fdata-persistence-part1","01.csharp\u002F12.desktop-ui\u002F42.data-persistence-part1",{"title":1631,"path":1632,"stem":1633},"Repository Pattern та Unit of Work","\u002Fcsharp\u002Fdesktop-ui\u002Fdata-persistence-part2","01.csharp\u002F12.desktop-ui\u002F43.data-persistence-part2",{"title":1635,"path":1636,"stem":1637},"Тестування ViewModels","\u002Fcsharp\u002Fdesktop-ui\u002Fviewmodel-testing","01.csharp\u002F12.desktop-ui\u002F44.viewmodel-testing",{"title":1639,"path":1640,"stem":1641},"Avalonia Headless Testing — тестування UI без вікон","\u002Fcsharp\u002Fdesktop-ui\u002F44a.avalonia-headless-testing","01.csharp\u002F12.desktop-ui\u002F44a.avalonia-headless-testing",{"title":1643,"path":1644,"stem":1645},"Кросплатформна розробка з Avalonia","\u002Fcsharp\u002Fdesktop-ui\u002Favalonia-cross-platform","01.csharp\u002F12.desktop-ui\u002F45.avalonia-cross-platform",{"title":1647,"path":1648,"stem":1649},"Пакування та розгортання Avalonia додатків","\u002Fcsharp\u002Fdesktop-ui\u002Favalonia-packaging-deployment","01.csharp\u002F12.desktop-ui\u002F46.avalonia-packaging-deployment",{"title":1651,"path":1652,"stem":1653},"Розгортання WPF застосунків","\u002Fcsharp\u002Fdesktop-ui\u002Fwpf-packaging-deployment","01.csharp\u002F12.desktop-ui\u002F47.wpf-packaging-deployment",{"title":1655,"icon":658,"path":1656,"stem":1657,"children":1658,"page":59},"Network Programming","\u002Fcsharp\u002Fnetwork-programming","01.csharp\u002F13.network-programming",[1659,1663,1667,1671,1675,1679,1683,1687,1691,1695,1699],{"title":1660,"path":1661,"stem":1662},"Основи комп'ютерних мереж","\u002Fcsharp\u002Fnetwork-programming\u002Ffoundations","01.csharp\u002F13.network-programming\u002F01.foundations",{"title":1664,"path":1665,"stem":1666},"Модель OSI та стек TCP\u002FIP","\u002Fcsharp\u002Fnetwork-programming\u002Fosi-model","01.csharp\u002F13.network-programming\u002F02.osi-model",{"title":1668,"path":1669,"stem":1670},"IP-протокол та адресація","\u002Fcsharp\u002Fnetwork-programming\u002Fip-addressing","01.csharp\u002F13.network-programming\u002F03.ip-addressing",{"title":1672,"path":1673,"stem":1674},"UDP — протокол без з'єднання","\u002Fcsharp\u002Fnetwork-programming\u002Fudp","01.csharp\u002F13.network-programming\u002F05.udp",{"title":1676,"path":1677,"stem":1678},"UDP Broadcast та Multicast","\u002Fcsharp\u002Fnetwork-programming\u002Fudp-broadcast-multicast","01.csharp\u002F13.network-programming\u002F06.udp-broadcast-multicast",{"title":1680,"path":1681,"stem":1682},"HTTP — протокол вебу","\u002Fcsharp\u002Fnetwork-programming\u002Fhttp-fundamentals","01.csharp\u002F13.network-programming\u002F07.http-fundamentals",{"title":1684,"path":1685,"stem":1686},"HttpListener — вбудований HTTP-сервер .NET","\u002Fcsharp\u002Fnetwork-programming\u002F07a.http-listener","01.csharp\u002F13.network-programming\u002F07a.http-listener",{"title":1688,"path":1689,"stem":1690},"HTTP Advanced — cookies, аутентифікація та HTTPS","\u002Fcsharp\u002Fnetwork-programming\u002Fhttp-advanced","01.csharp\u002F13.network-programming\u002F08.http-advanced",{"title":1692,"path":1693,"stem":1694},"SMTP та протоколи електронної пошти","\u002Fcsharp\u002Fnetwork-programming\u002Fsmtp","01.csharp\u002F13.network-programming\u002F09.smtp",{"title":1696,"path":1697,"stem":1698},"WebSocket — повнодуплексний протокол реального часу","\u002Fcsharp\u002Fnetwork-programming\u002Fwebsockets","01.csharp\u002F13.network-programming\u002F10.websockets",{"title":1700,"path":1701,"stem":1702},"TLS\u002FSSL — криптографічний захист мережевих з'єднань","\u002Fcsharp\u002Fnetwork-programming\u002Ftls-ssl","01.csharp\u002F13.network-programming\u002F11.tls-ssl",{"title":1704,"path":1705,"stem":1706},"C# & .NET: The Ultimate Roadmap","\u002Fcsharp\u002Froadmap","01.csharp\u002Froadmap",{"title":1708,"icon":1709,"path":1710,"stem":1711,"children":1712,"page":59},"C++","i-devicon-cplusplus","\u002Fcpp","02.cpp",[1713,1717,1721,1725,1729,1733,1737,1741,1745,1748,1752,1756,1760,1764,1768,1772,1776,1780,1784,1788,1792,1796,1800,1804,1808,1812,1816,1820,1824,1828,1832,1836,1840,1844,1848,1852,1856,1860,1864,1868,1872,1876,1880,1884,1888,1892,1896,1900,1904,1908,1912,1916,1920,1924,1928,1932,1936,1940,1944,1948,1952,1956,1960,1964,1968,1972,1976,1980,1984,1988,1992,1996,2000,2004,2008,2012,2016,2020,2024,2028,2032,2036],{"title":1714,"path":1715,"stem":1716},"Вступ у програмування та алгоритми","\u002Fcpp\u002Fintro-algorithms","02.cpp\u002F01.intro-algorithms",{"title":1718,"path":1719,"stem":1720},"Code Style: угоди про оформлення коду","\u002Fcpp\u002Fcode-style","02.cpp\u002F02.code-style",{"title":1722,"path":1723,"stem":1724},"Середовище розробки та перший проєкт","\u002Fcpp\u002Fide-setup","02.cpp\u002F03.ide-setup",{"title":1726,"path":1727,"stem":1728},"Вивід даних на екран","\u002Fcpp\u002Fdata-output","02.cpp\u002F04.data-output",{"title":1730,"path":1731,"stem":1732},"Типи даних, змінні та константи","\u002Fcpp\u002Fdata-types-variables","02.cpp\u002F05.data-types-variables",{"title":1734,"path":1735,"stem":1736},"Ввід даних з клавіатури","\u002Fcpp\u002Fdata-input","02.cpp\u002F06.data-input",{"title":1738,"path":1739,"stem":1740},"Оператори, перетворення типів та логічні операції","\u002Fcpp\u002Foperators-type-conversion","02.cpp\u002F07.operators-type-conversion",{"title":1742,"path":1743,"stem":1744},"Цикли","\u002Fcpp\u002Floops","02.cpp\u002F08.loops",{"title":32,"path":1746,"stem":1747},"\u002Fcpp\u002Farrays","02.cpp\u002F09.arrays",{"title":1749,"path":1750,"stem":1751},"Алгоритми сортування та аналіз складності","\u002Fcpp\u002Fsorting","02.cpp\u002F10.sorting",{"title":1753,"path":1754,"stem":1755},"Алгоритми пошуку","\u002Fcpp\u002Fsearching","02.cpp\u002F11.searching",{"title":1757,"path":1758,"stem":1759},"Функції: основи","\u002Fcpp\u002Ffunctions-basics","02.cpp\u002F12.functions-basics",{"title":1761,"path":1762,"stem":1763},"Функції: прототипи, область видимості та додаткові можливості","\u002Fcpp\u002Ffunctions-scope","02.cpp\u002F13.functions-scope",{"title":1765,"path":1766,"stem":1767},"Функції: перевантаження та шаблони","\u002Fcpp\u002Ffunctions-overloading-templates","02.cpp\u002F14.functions-overloading-templates",{"title":1769,"path":1770,"stem":1771},"Вказівники: основи","\u002Fcpp\u002Fpointers-basics","02.cpp\u002F15.pointers-basics",{"title":1773,"path":1774,"stem":1775},"Посилання (References)","\u002Fcpp\u002Freferences","02.cpp\u002F16.references",{"title":1777,"path":1778,"stem":1779},"Вказівники, const і масиви","\u002Fcpp\u002Fpointers-const-arrays","02.cpp\u002F17.pointers-const-arrays",{"title":1781,"path":1782,"stem":1783},"Адресна арифметика","\u002Fcpp\u002Fpointer-arithmetic","02.cpp\u002F18.pointer-arithmetic",{"title":1785,"path":1786,"stem":1787},"Динамічна пам'ять","\u002Fcpp\u002Fdynamic-memory","02.cpp\u002F19.dynamic-memory",{"title":1789,"path":1790,"stem":1791},"Вказівники типу void","\u002Fcpp\u002Fvoid-pointers","02.cpp\u002F20.void-pointers",{"title":1793,"path":1794,"stem":1795},"Вказівники на вказівники","\u002Fcpp\u002Fpointers-to-pointers","02.cpp\u002F21.pointers-to-pointers",{"title":1797,"path":1798,"stem":1799},"Оператор доступу до членів через вказівник (->)","\u002Fcpp\u002Fmember-access-operator","02.cpp\u002F22.member-access-operator",{"title":1801,"path":1802,"stem":1803},"Цикл for-each (Range-based for)","\u002Fcpp\u002Fforeach-loop","02.cpp\u002F23.foreach-loop",{"title":1805,"path":1806,"stem":1807},"Вказівники на функції","\u002Fcpp\u002Ffunction-pointers","02.cpp\u002F24.function-pointers",{"title":1809,"path":1810,"stem":1811},"Лямбда-вирази","\u002Fcpp\u002Flambdas","02.cpp\u002F25.lambdas",{"title":1813,"path":1814,"stem":1815},"Лямбда-захоплення","\u002Fcpp\u002Flambda-captures","02.cpp\u002F26.lambda-captures",{"title":1817,"path":1818,"stem":1819},"Еліпсис","\u002Fcpp\u002Fellipsis","02.cpp\u002F27.ellipsis",{"title":1821,"path":1822,"stem":1823},"Безпечні альтернативи еліпсису","\u002Fcpp\u002F27a.ellipsis","02.cpp\u002F27a.ellipsis",{"title":1825,"path":1826,"stem":1827},"Аргументи командного рядка","\u002Fcpp\u002Fcommand-line-arguments","02.cpp\u002F28.command-line-arguments",{"title":1829,"path":1830,"stem":1831},"Перерахування (enum)","\u002Fcpp\u002Fenum","02.cpp\u002F29.enum",{"title":1833,"path":1834,"stem":1835},"Класи-перерахування (enum class)","\u002Fcpp\u002Fenum-class","02.cpp\u002F30.enum-class",{"title":1837,"path":1838,"stem":1839},"Псевдоніми типів (typedef і using)","\u002Fcpp\u002Ftype-aliases","02.cpp\u002F31.type-aliases",{"title":1841,"path":1842,"stem":1843},"Системи числення та двійкова арифметика","\u002Fcpp\u002Fnumber-systems","02.cpp\u002F32.number-systems",{"title":1845,"path":1846,"stem":1847},"Структури (struct): агрегування даних","\u002Fcpp\u002Fstruct","02.cpp\u002F33.struct",{"title":1849,"path":1850,"stem":1851},"Структури у функціях","\u002Fcpp\u002Fstruct-functions","02.cpp\u002F34.struct-functions",{"title":1853,"path":1854,"stem":1855},"Масиви структур і вкладені структури","\u002Fcpp\u002Fstruct-arrays","02.cpp\u002F35.struct-arrays",{"title":1857,"path":1858,"stem":1859},"Патерни struct та межі застосування","\u002Fcpp\u002Fstruct-patterns","02.cpp\u002F36.struct-patterns",{"title":1861,"path":1862,"stem":1863},"Символи та таблиця ASCII","\u002Fcpp\u002Fascii-characters","02.cpp\u002F37.ascii-characters",{"title":1865,"path":1866,"stem":1867},"Unicode та кодування UTF","\u002Fcpp\u002Funicode-utf","02.cpp\u002F38.unicode-utf",{"title":1869,"path":1870,"stem":1871},"C-style рядки","\u002Fcpp\u002Fc-strings","02.cpp\u002F39.c-strings",{"title":1873,"path":1874,"stem":1875},"Вступ до std::string","\u002Fcpp\u002Fstd-string-intro","02.cpp\u002F40.std-string-intro",{"title":1877,"path":1878,"stem":1879},"Довжина, ємність та доступ до символів std::string","\u002Fcpp\u002Fstd-string-capacity-access","02.cpp\u002F41.std-string-capacity-access",{"title":1881,"path":1882,"stem":1883},"Модифікація std::string: присвоювання, додавання, вставка, видалення та заміна","\u002Fcpp\u002Fstd-string-modification","02.cpp\u002F42.std-string-modification",{"title":1885,"path":1886,"stem":1887},"Пошук у std::string: find, npos та практичні патерни","\u002Fcpp\u002Fstd-string-search","02.cpp\u002F43.std-string-search",{"title":1889,"path":1890,"stem":1891},"std::string_view: невласницький погляд на рядок без копіювання","\u002Fcpp\u002Fstd-string-view","02.cpp\u002F44.std-string-view",{"title":1893,"path":1894,"stem":1895},"Об'єднання (union): один блок пам'яті, кілька інтерпретацій","\u002Fcpp\u002Funion","02.cpp\u002F45.union",{"title":1897,"path":1898,"stem":1899},"Організація коду: файли, препроцесор, простори імен","\u002Fcpp\u002Fmultifile-programs","02.cpp\u002F46.multifile-programs",{"title":1901,"path":1902,"stem":1903},"Робота з файлами: C-стиль (stdio.h)","\u002Fcpp\u002Fc-style-files","02.cpp\u002F47.c-style-files",{"title":1905,"path":1906,"stem":1907},"Робота з файлами: C++-стиль (fstream)","\u002Fcpp\u002Fcpp-style-files","02.cpp\u002F48.cpp-style-files",{"title":1909,"path":1910,"stem":1911},"Введення в ООП: від процедур до об'єктів","\u002Fcpp\u002Foop-intro","02.cpp\u002F49.oop-intro",{"title":1913,"path":1914,"stem":1915},"Класи, об'єкти та методи","\u002Fcpp\u002Fclasses-objects-methods","02.cpp\u002F50.classes-objects-methods",{"title":1917,"path":1918,"stem":1919},"Специфікатори доступу та інкапсуляція","\u002Fcpp\u002Faccess-specifiers-encapsulation","02.cpp\u002F51.access-specifiers-encapsulation",{"title":1921,"path":1922,"stem":1923},"Конструктори: гарантована ініціалізація об'єктів","\u002Fcpp\u002Fconstructors","02.cpp\u002F52.constructors",{"title":1925,"path":1926,"stem":1927},"Списки ініціалізації та делегуючі конструктори","\u002Fcpp\u002Finit-lists-delegating","02.cpp\u002F53.init-lists-delegating",{"title":1929,"path":1930,"stem":1931},"Деструктори та ідіома RAII","\u002Fcpp\u002Fdestructors-raii","02.cpp\u002F54.destructors-raii",{"title":1933,"path":1934,"stem":1935},"Прихований покажчик this","\u002Fcpp\u002Fthis-pointer","02.cpp\u002F55.this-pointer",{"title":1937,"path":1938,"stem":1939},"Розподіл класу на заголовковий файл та файл реалізації","\u002Fcpp\u002Fclass-header-source","02.cpp\u002F56.class-header-source",{"title":1941,"path":1942,"stem":1943},"Класи та const","\u002Fcpp\u002Fconst-classes","02.cpp\u002F57.const-classes",{"title":1945,"path":1946,"stem":1947},"Статичні члени класу","\u002Fcpp\u002Fstatic-members","02.cpp\u002F58.static-members",{"title":1949,"path":1950,"stem":1951},"Конструктор копіювання та запобігання копіюванню","\u002Fcpp\u002Fcopy-constructor","02.cpp\u002F59.copy-constructor",{"title":1953,"path":1954,"stem":1955},"Дружні функції та класи","\u002Fcpp\u002Ffriend-functions-classes","02.cpp\u002F60.friend-functions-classes",{"title":1957,"path":1958,"stem":1959},"Анонімні об'єкти та вкладені типи","\u002Fcpp\u002Fanonymous-objects-nested-types","02.cpp\u002F61.anonymous-objects-nested-types",{"title":1961,"path":1962,"stem":1963},"Вимірювання часу виконання: RAII-таймер","\u002Fcpp\u002Ftiming-raii-timer","02.cpp\u002F62.timing-raii-timer",{"title":1965,"path":1966,"stem":1967},"Перевантаження операторів: основи та арифметика","\u002Fcpp\u002Foperator-overloading-basics","02.cpp\u002F63.operator-overloading-basics",{"title":1969,"path":1970,"stem":1971},"Перевантаження операторів: методи класу та спеціальні оператори","\u002Fcpp\u002Foperator-overloading-methods","02.cpp\u002F64.operator-overloading-methods",{"title":1973,"path":1974,"stem":1975},"Приведення типів, explicit та delete","\u002Fcpp\u002Ftypecast-explicit-delete","02.cpp\u002F65.typecast-explicit-delete",{"title":1977,"path":1978,"stem":1979},"Глибоке копіювання та оператор присвоювання","\u002Fcpp\u002Fdeep-copy-assignment","02.cpp\u002F66.deep-copy-assignment",{"title":1981,"path":1982,"stem":1983},"Зв'язки між об'єктами: композиція та агрегація","\u002Fcpp\u002Fcomposition-aggregation","02.cpp\u002F67.composition-aggregation",{"title":1985,"path":1986,"stem":1987},"Асоціація та залежність між об","\u002Fcpp\u002Fassociation-dependency","02.cpp\u002F68.association-dependency",{"title":1989,"path":1990,"stem":1991},"Контейнерні класи та `std::initializer_list`","\u002Fcpp\u002Fcontainer-classes-initializer-list","02.cpp\u002F69.container-classes-initializer-list",{"title":1993,"path":1994,"stem":1995},"Конструктори, деструктори та порядок ініціалізації в ієрархіях","\u002Fcpp\u002Finheritance-constructors-destructors","02.cpp\u002F71.inheritance-constructors-destructors",{"title":1997,"path":1998,"stem":1999},"Специфікатор `protected` та види наслідування","\u002Fcpp\u002Finheritance-access-specifiers","02.cpp\u002F72.inheritance-access-specifiers",{"title":2001,"path":2002,"stem":2003},"Перевизначення методів та приховування імен","\u002Fcpp\u002Fmethod-overriding-hiding","02.cpp\u002F73.method-overriding-hiding",{"title":2005,"path":2006,"stem":2007},"Множинне наслідування та проблема ромба","\u002Fcpp\u002Fmultiple-inheritance-diamond","02.cpp\u002F74.multiple-inheritance-diamond",{"title":2009,"path":2010,"stem":2011},"Вказівники на базовий клас та віртуальні функції","\u002Fcpp\u002Fvirtual-functions-polymorphism","02.cpp\u002F75.virtual-functions-polymorphism",{"title":2013,"path":2014,"stem":2015},"Специфікатори override, final та віртуальні деструктори","\u002Fcpp\u002Foverride-final-virtual-destructors","02.cpp\u002F76.override-final-virtual-destructors",{"title":2017,"path":2018,"stem":2019},"Внутрішні механізми поліморфізму: vtable, vptr та зв'язування","\u002Fcpp\u002Fvirtual-table-binding","02.cpp\u002F77.virtual-table-binding",{"title":2021,"path":2022,"stem":2023},"Абстрактні класи та чисті віртуальні функції","\u002Fcpp\u002Fabstract-classes-interfaces","02.cpp\u002F78.abstract-classes-interfaces",{"title":2025,"path":2026,"stem":2027},"Зрізка об'єктів, віртуальне наслідування та поліморфний вивід","\u002Fcpp\u002Fslicing-virtual-base-io","02.cpp\u002F79.slicing-virtual-base-io",{"title":2029,"path":2030,"stem":2031},"Динамічне приведення типів (`dynamic_cast`) та RTTI","\u002Fcpp\u002Fdynamic-cast-rtti","02.cpp\u002F80.dynamic-cast-rtti",{"title":2033,"path":2034,"stem":2035},"Шаблони функцій: узагальнене програмування","\u002Fcpp\u002Ffunction-templates","02.cpp\u002F81.function-templates",{"title":2037,"path":2038,"stem":2039},"Шаблони класів та NTTP-параметри","\u002Fcpp\u002Fclass-templates-nttp","02.cpp\u002F82.class-templates-nttp",{"title":2041,"icon":2042,"path":2043,"stem":2044,"children":2045,"page":59},"JavaScript","i-devicon-javascript","\u002Fjavascript","03.javascript",[2046,2072,2126,2148,2452,2490,2508],{"title":2047,"icon":2048,"path":2049,"stem":2050,"children":2051,"page":59},"Events","i-lucide-mouse-pointer-click","\u002Fjavascript\u002Fevents","03.javascript\u002F01.events",[2052,2056,2060,2064,2068],{"title":2053,"path":2054,"stem":2055},"Вступ до подій браузера","\u002Fjavascript\u002Fevents\u002Fintro","03.javascript\u002F01.events\u002F01.intro",{"title":2057,"path":2058,"stem":2059},"Бульбашковий механізм (Bubbling) та занурення (Capturing)","\u002Fjavascript\u002Fevents\u002Fbubbling-capturing","03.javascript\u002F01.events\u002F02.bubbling-capturing",{"title":2061,"path":2062,"stem":2063},"Делегування подій (Event Delegation)","\u002Fjavascript\u002Fevents\u002Fdelegate-events","03.javascript\u002F01.events\u002F03.delegate-events",{"title":2065,"path":2066,"stem":2067},"Типові дії браузера та preventDefault()","\u002Fjavascript\u002Fevents\u002Fprevent-default","03.javascript\u002F01.events\u002F04.prevent-default",{"title":2069,"path":2070,"stem":2071},"Запуск користувацьких подій (Custom Events)","\u002Fjavascript\u002Fevents\u002Fcustom-events","03.javascript\u002F01.events\u002F05.custom-events",{"title":2073,"icon":2074,"path":2075,"stem":2076,"children":2077,"page":59},"Network","i-lucide-globe","\u002Fjavascript\u002Fnetwork","03.javascript\u002F02.network",[2078,2082,2086,2090,2094,2098,2102,2106,2110,2114,2118,2122],{"title":2079,"path":2080,"stem":2081},"Fetch API - Сучасний підхід до HTTP-запитів","\u002Fjavascript\u002Fnetwork\u002F01-fetch-api","03.javascript\u002F02.network\u002F01-fetch-api",{"title":2083,"path":2084,"stem":2085},"FormData - Робота з формами та файлами","\u002Fjavascript\u002Fnetwork\u002F02-formdata","03.javascript\u002F02.network\u002F02-formdata",{"title":2087,"path":2088,"stem":2089},"Відстеження прогресу завантаження","\u002Fjavascript\u002Fnetwork\u002F03-download-progress","03.javascript\u002F02.network\u002F03-download-progress",{"title":2091,"path":2092,"stem":2093},"Переривання fetch-запитів","\u002Fjavascript\u002Fnetwork\u002F04-abort-requests","03.javascript\u002F02.network\u002F04-abort-requests",{"title":2095,"path":2096,"stem":2097},"CORS - Запити між різними джерелами","\u002Fjavascript\u002Fnetwork\u002F05-cors","03.javascript\u002F02.network\u002F05-cors",{"title":2099,"path":2100,"stem":2101},"Fetch API - Повний довідник опцій","\u002Fjavascript\u002Fnetwork\u002F06-fetch-options","03.javascript\u002F02.network\u002F06-fetch-options",{"title":2103,"path":2104,"stem":2105},"URL Objects - Робота з посиланнями","\u002Fjavascript\u002Fnetwork\u002F07-url-objects","03.javascript\u002F02.network\u002F07-url-objects",{"title":2107,"path":2108,"stem":2109},"XMLHttpRequest - AJAX та низькорівневі запити","\u002Fjavascript\u002Fnetwork\u002F08-xmlhttprequest","03.javascript\u002F02.network\u002F08-xmlhttprequest",{"title":2111,"path":2112,"stem":2113},"Відновлюване завантаження файлів","\u002Fjavascript\u002Fnetwork\u002F09-resumable-upload","03.javascript\u002F02.network\u002F09-resumable-upload",{"title":2115,"path":2116,"stem":2117},"Cookies, document.cookie та світ після \"Cookiepocalypse\"","\u002Fjavascript\u002Fnetwork\u002F10-cookies","03.javascript\u002F02.network\u002F10-cookies",{"title":2119,"path":2120,"stem":2121},"js-cookie: Керування Cookies без Болю","\u002Fjavascript\u002Fnetwork\u002F11-js-cookie","03.javascript\u002F02.network\u002F11-js-cookie",{"title":2123,"path":2124,"stem":2125},"Axios: Потужний HTTP-клієнт для JavaScript","\u002Fjavascript\u002Fnetwork\u002F12-axios","03.javascript\u002F02.network\u002F12-axios",{"title":2127,"icon":2128,"path":2129,"stem":2130,"children":2131,"page":59},"Bom","i-lucide-monitor","\u002Fjavascript\u002Fbom","03.javascript\u002F03.bom",[2132,2136,2140,2144],{"title":2133,"path":2134,"stem":2135},"LocalStorage, SessionStorage та patterns збереження даних","\u002Fjavascript\u002Fbom\u002F01-localstorage","03.javascript\u002F03.bom\u002F01-localstorage",{"title":2137,"path":2138,"stem":2139},"Location Object - Керування адресою сторінки","\u002Fjavascript\u002Fbom\u002F02-location-object","03.javascript\u002F03.bom\u002F02-location-object",{"title":2141,"path":2142,"stem":2143},"History API - Керування історією браузера","\u002Fjavascript\u002Fbom\u002F03-history-api","03.javascript\u002F03.bom\u002F03-history-api",{"title":2145,"path":2146,"stem":2147},"Navigator Object - Ідентифікація та Можливості Пристрою","\u002Fjavascript\u002Fbom\u002F04-navigator-object","03.javascript\u002F03.bom\u002F04-navigator-object",{"title":2149,"icon":2150,"path":2151,"stem":2152,"children":2153},"React","i-devicon-react","\u002Fjavascript\u002Freact","03.javascript\u002F04.react\u002Findex",[2154,2155,2159,2163,2167,2171,2234,2269,2421],{"title":2149,"path":2151,"stem":2152},{"title":2156,"path":2157,"stem":2158},"Робота з Формами в React","\u002Fjavascript\u002Freact\u002Freact-forms","03.javascript\u002F04.react\u002F01.react-forms",{"title":2160,"path":2161,"stem":2162},"React Hook Form: Професійна Робота з Формами","\u002Fjavascript\u002Freact\u002Freact-hook-form","03.javascript\u002F04.react\u002F02.react-hook-form",{"title":2164,"path":2165,"stem":2166},"React Hook Form: Глибоке Розуміння Архітектури та Оптимізації","\u002Fjavascript\u002Freact\u002Freact-hook-form-new","03.javascript\u002F04.react\u002F02.react-hook-form-new",{"title":2168,"path":2169,"stem":2170},"Axios та React: Професійна Архітектура Запитів","\u002Fjavascript\u002Freact\u002Fdata-fetching-axios","03.javascript\u002F04.react\u002F03.data-fetching-axios",{"title":2172,"icon":132,"path":2173,"stem":2174,"children":2175},"Tanstack Query","\u002Fjavascript\u002Freact\u002Ftanstack-query","03.javascript\u002F04.react\u002F04.tanstack-query\u002Findex",[2176,2178,2182,2186,2190,2194,2198,2202,2206,2210,2214,2218,2222,2226,2230],{"title":2177,"path":2173,"stem":2174},"TanStack Query: Майстерність Керування Станом Сервера",{"title":2179,"path":2180,"stem":2181},"Парадигма Server State: Чому useEffect недостатньо","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Fserver-state-paradigm","03.javascript\u002F04.react\u002F04.tanstack-query\u002F01.server-state-paradigm",{"title":2183,"path":2184,"stem":2185},"Встановлення та Налаштування: Фундамент","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Finstallation-and-devtools","03.javascript\u002F04.react\u002F04.tanstack-query\u002F02.installation-and-devtools",{"title":2187,"path":2188,"stem":2189},"Основи Запитів та Магія Ключів","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Fquery-basics-and-keys","03.javascript\u002F04.react\u002F04.tanstack-query\u002F03.query-basics-and-keys",{"title":2191,"path":2192,"stem":2193},"Синхронізація Даних: Життєвий Цикл Запиту","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Fdata-synchronization","03.javascript\u002F04.react\u002F04.tanstack-query\u002F04.data-synchronization",{"title":2195,"path":2196,"stem":2197},"Мутації та Інвалідація: Зміна Даних","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Fmutations-and-invalidation","03.javascript\u002F04.react\u002F04.tanstack-query\u002F05.mutations-and-invalidation",{"title":2199,"path":2200,"stem":2201},"Оптимістичні Оновлення: Швидше за Світло","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Foptimistic-updates","03.javascript\u002F04.react\u002F04.tanstack-query\u002F06.optimistic-updates",{"title":2203,"path":2204,"stem":2205},"Пагінація та Infinite Scroll","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Fpagination-and-load-more","03.javascript\u002F04.react\u002F04.tanstack-query\u002F07.pagination-and-load-more",{"title":2207,"path":2208,"stem":2209},"Просунуті Патерни та Оптимізація","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Fadvanced-patterns","03.javascript\u002F04.react\u002F04.tanstack-query\u002F08.advanced-patterns",{"title":2211,"path":2212,"stem":2213},"Архітектура та Best Practices","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Farchitecture-and-best-practices","03.javascript\u002F04.react\u002F04.tanstack-query\u002F09.architecture-and-best-practices",{"title":2215,"path":2216,"stem":2217},"Server-Side Rendering (SSR) та Гідратація","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Fserver-side-rendering","03.javascript\u002F04.react\u002F04.tanstack-query\u002F10.server-side-rendering",{"title":2219,"path":2220,"stem":2221},"Стратегії Тестування","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Ftesting-strategies","03.javascript\u002F04.react\u002F04.tanstack-query\u002F11.testing-strategies",{"title":2223,"path":2224,"stem":2225},"Аутентифікація та Обробка Помилок","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Fauthentication-and-errors","03.javascript\u002F04.react\u002F04.tanstack-query\u002F12.authentication-and-errors",{"title":2227,"path":2228,"stem":2229},"React Suspense та Майбутнє","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Freact-suspense","03.javascript\u002F04.react\u002F04.tanstack-query\u002F13.react-suspense",{"title":2231,"path":2232,"stem":2233},"Глибоке Занурення в Продуктивність","\u002Fjavascript\u002Freact\u002Ftanstack-query\u002Fperformance-deep-dive","03.javascript\u002F04.react\u002F04.tanstack-query\u002F14.performance-deep-dive",{"title":2235,"icon":2150,"path":2236,"stem":2237,"children":2238},"React Router","\u002Fjavascript\u002Freact\u002Freact-router","03.javascript\u002F04.react\u002F05.react-router\u002Findex",[2239,2241,2245,2249,2253,2257,2261,2265],{"title":2240,"path":2236,"stem":2237},"React Router: Навігаційна система сучасного вебу",{"title":2242,"path":2243,"stem":2244},"Налаштування та Базовий Роутинг","\u002Fjavascript\u002Freact\u002Freact-router\u002Fsetup-and-basic-routing","03.javascript\u002F04.react\u002F05.react-router\u002F01.setup-and-basic-routing",{"title":2246,"path":2247,"stem":2248},"Динамічна Навігація","\u002Fjavascript\u002Freact\u002Freact-router\u002Fnavigation-and-links","03.javascript\u002F04.react\u002F05.react-router\u002F02.navigation-and-links",{"title":2250,"path":2251,"stem":2252},"Вкладені Маршрути та Макети","\u002Fjavascript\u002Freact\u002Freact-router\u002Fnested-routes-and-layouts","03.javascript\u002F04.react\u002F05.react-router\u002F03.nested-routes-and-layouts",{"title":2254,"path":2255,"stem":2256},"Динамічні Маршрути та Параметри","\u002Fjavascript\u002Freact\u002Freact-router\u002Fdynamic-routing","03.javascript\u002F04.react\u002F05.react-router\u002F04.dynamic-routing",{"title":2258,"path":2259,"stem":2260},"Data APIs: Loaders та Actions","\u002Fjavascript\u002Freact\u002Freact-router\u002Fdata-loading","03.javascript\u002F04.react\u002F05.react-router\u002F05.data-loading",{"title":2262,"path":2263,"stem":2264},"Просунуті Патерни","\u002Fjavascript\u002Freact\u002Freact-router\u002Fadvanced-patterns","03.javascript\u002F04.react\u002F05.react-router\u002F06.advanced-patterns",{"title":2266,"path":2267,"stem":2268},"Legacy Routing: Компонентний підхід","\u002Fjavascript\u002Freact\u002Freact-router\u002Flegacy-routing","03.javascript\u002F04.react\u002F05.react-router\u002F07.legacy-routing",{"title":2270,"icon":132,"path":2271,"stem":2272,"children":2273},"Redux","\u002Fjavascript\u002Freact\u002Fredux","03.javascript\u002F04.react\u002F06.redux\u002Findex",[2274,2276,2292,2321,2330,2351,2367,2396],{"title":2275,"path":2271,"stem":2272},"Redux: Еволюція управління станом",{"title":14,"icon":15,"path":2277,"stem":2278,"children":2279,"page":59},"\u002Fjavascript\u002Freact\u002Fredux\u002Ffundamentals","03.javascript\u002F04.react\u002F06.redux\u002F01.fundamentals",[2280,2284,2288],{"title":2281,"path":2282,"stem":2283},"Вступ до State Management","\u002Fjavascript\u002Freact\u002Fredux\u002Ffundamentals\u002Fintro-state-management","03.javascript\u002F04.react\u002F06.redux\u002F01.fundamentals\u002F01.intro-state-management",{"title":2285,"path":2286,"stem":2287},"Філософія Redux та Три Принципи","\u002Fjavascript\u002Freact\u002Fredux\u002Ffundamentals\u002Fredux-philosophy","03.javascript\u002F04.react\u002F06.redux\u002F01.fundamentals\u002F02.redux-philosophy",{"title":2289,"path":2290,"stem":2291},"Чисті функції та Іммутабельність","\u002Fjavascript\u002Freact\u002Fredux\u002Ffundamentals\u002Fpure-functions-immutability","03.javascript\u002F04.react\u002F06.redux\u002F01.fundamentals\u002F03.pure-functions-immutability",{"title":2293,"icon":132,"path":2294,"stem":2295,"children":2296,"page":59},"Classic Redux","\u002Fjavascript\u002Freact\u002Fredux\u002Fclassic-redux","03.javascript\u002F04.react\u002F06.redux\u002F02.classic-redux",[2297,2301,2305,2309,2313,2317],{"title":2298,"path":2299,"stem":2300},"Створення Store (Classic Redux)","\u002Fjavascript\u002Freact\u002Fredux\u002Fclassic-redux\u002Fstore-setup","03.javascript\u002F04.react\u002F06.redux\u002F02.classic-redux\u002F01.store-setup",{"title":2302,"path":2303,"stem":2304},"Actions, Constants та Action Creators","\u002Fjavascript\u002Freact\u002Fredux\u002Fclassic-redux\u002Factions-constants","03.javascript\u002F04.react\u002F06.redux\u002F02.classic-redux\u002F02.actions-constants",{"title":2306,"path":2307,"stem":2308},"Логіка Reducers","\u002Fjavascript\u002Freact\u002Fredux\u002Fclassic-redux\u002Freducers","03.javascript\u002F04.react\u002F06.redux\u002F02.classic-redux\u002F03.reducers",{"title":2310,"path":2311,"stem":2312},"Комбінування Reducers (Root Reducer)","\u002Fjavascript\u002Freact\u002Fredux\u002Fclassic-redux\u002Fdata-flow","03.javascript\u002F04.react\u002F06.redux\u002F02.classic-redux\u002F04.data-flow",{"title":2314,"path":2315,"stem":2316},"Підключення до React (React-Redux)","\u002Fjavascript\u002Freact\u002Fredux\u002Fclassic-redux\u002Freact-redux-connection","03.javascript\u002F04.react\u002F06.redux\u002F02.classic-redux\u002F05.react-redux-connection",{"title":2318,"path":2319,"stem":2320},"Middleware та Асинхронність (Redux Thunk)","\u002Fjavascript\u002Freact\u002Fredux\u002Fclassic-redux\u002Fmiddleware-thunk","03.javascript\u002F04.react\u002F06.redux\u002F02.classic-redux\u002F06.middleware-thunk",{"title":2322,"icon":132,"path":2323,"stem":2324,"children":2325,"page":59},"Transition To Rtk","\u002Fjavascript\u002Freact\u002Fredux\u002Ftransition-to-rtk","03.javascript\u002F04.react\u002F06.redux\u002F03.transition-to-rtk",[2326],{"title":2327,"path":2328,"stem":2329},"Проблеми класичного Redux","\u002Fjavascript\u002Freact\u002Fredux\u002Ftransition-to-rtk\u002Fproblems-with-classic","03.javascript\u002F04.react\u002F06.redux\u002F03.transition-to-rtk\u002F01.problems-with-classic",{"title":2331,"icon":132,"path":2332,"stem":2333,"children":2334,"page":59},"Redux Toolkit","\u002Fjavascript\u002Freact\u002Fredux\u002Fredux-toolkit","03.javascript\u002F04.react\u002F06.redux\u002F04.redux-toolkit",[2335,2339,2343,2347],{"title":2336,"path":2337,"stem":2338},"Налаштування Store з configureStore","\u002Fjavascript\u002Freact\u002Fredux\u002Fredux-toolkit\u002Fconfigure-store","03.javascript\u002F04.react\u002F06.redux\u002F04.redux-toolkit\u002F01.configure-store",{"title":2340,"path":2341,"stem":2342},"createSlice: Революція в Redux","\u002Fjavascript\u002Freact\u002Fredux\u002Fredux-toolkit\u002Fcreate-slice","03.javascript\u002F04.react\u002F06.redux\u002F04.redux-toolkit\u002F02.create-slice",{"title":2344,"path":2345,"stem":2346},"Асинхронність з createAsyncThunk","\u002Fjavascript\u002Freact\u002Fredux\u002Fredux-toolkit\u002Fasync-thunks","03.javascript\u002F04.react\u002F06.redux\u002F04.redux-toolkit\u002F03.async-thunks",{"title":2348,"path":2349,"stem":2350},"04. Entity Adapter: Керування нормалізованим станом","\u002Fjavascript\u002Freact\u002Fredux\u002Fredux-toolkit\u002Fentity-adapter","03.javascript\u002F04.react\u002F06.redux\u002F04.redux-toolkit\u002F04.entity-adapter",{"title":2352,"icon":92,"path":2353,"stem":2354,"children":2355,"page":59},"Advanced","\u002Fjavascript\u002Freact\u002Fredux\u002Fadvanced","03.javascript\u002F04.react\u002F06.redux\u002F05.advanced",[2356,2360,2364],{"title":2357,"path":2358,"stem":2359},"Мемоізація та Селектори: Повний Гайд по Reselect","\u002Fjavascript\u002Freact\u002Fredux\u002Fadvanced\u002Fselectors-reselect","03.javascript\u002F04.react\u002F06.redux\u002F05.advanced\u002F01.selectors-reselect",{"title":2361,"path":2362,"stem":2363},"RTK Query: Архітектура Серверного Кешу","\u002Fjavascript\u002Freact\u002Fredux\u002Fadvanced\u002Frtk-query-intro","03.javascript\u002F04.react\u002F06.redux\u002F05.advanced\u002F02.rtk-query-intro",{"title":2211,"path":2365,"stem":2366},"\u002Fjavascript\u002Freact\u002Fredux\u002Fadvanced\u002Farchitecture-best-practices","03.javascript\u002F04.react\u002F06.redux\u002F05.advanced\u002F03.architecture-best-practices",{"title":2368,"icon":132,"path":2369,"stem":2370,"children":2371,"page":59},"Project Kanban","\u002Fjavascript\u002Freact\u002Fredux\u002Fproject-kanban","03.javascript\u002F04.react\u002F06.redux\u002F06.project-kanban",[2372,2376,2380,2384,2388,2392],{"title":2373,"path":2374,"stem":2375},"Проєкт: Kanban Board (Trello Clone)","\u002Fjavascript\u002Freact\u002Fredux\u002Fproject-kanban\u002Fproject-overview","03.javascript\u002F04.react\u002F06.redux\u002F06.project-kanban\u002F01.project-overview",{"title":2377,"path":2378,"stem":2379},"Налаштування та Типізація","\u002Fjavascript\u002Freact\u002Fredux\u002Fproject-kanban\u002Fsetup-and-types","03.javascript\u002F04.react\u002F06.redux\u002F06.project-kanban\u002F02.setup-and-types",{"title":2381,"path":2382,"stem":2383},"Board Slice: Серце Дошки","\u002Fjavascript\u002Freact\u002Fredux\u002Fproject-kanban\u002Fboard-slice","03.javascript\u002F04.react\u002F06.redux\u002F06.project-kanban\u002F03.board-slice",{"title":2385,"path":2386,"stem":2387},"Логіка Drag & Drop","\u002Fjavascript\u002Freact\u002Fredux\u002Fproject-kanban\u002Fdrag-and-drop-logic","03.javascript\u002F04.react\u002F06.redux\u002F06.project-kanban\u002F04.drag-and-drop-logic",{"title":2389,"path":2390,"stem":2391},"Інтеграція з RTK Query","\u002Fjavascript\u002Freact\u002Fredux\u002Fproject-kanban\u002Frtk-query-integration","03.javascript\u002F04.react\u002F06.redux\u002F06.project-kanban\u002F05.rtk-query-integration",{"title":2393,"path":2394,"stem":2395},"Optimistic Updates","\u002Fjavascript\u002Freact\u002Fredux\u002Fproject-kanban\u002Foptimistic-updates","03.javascript\u002F04.react\u002F06.redux\u002F06.project-kanban\u002F06.optimistic-updates",{"title":2397,"icon":132,"path":2398,"stem":2399,"children":2400,"page":59},"Testing","\u002Fjavascript\u002Freact\u002Fredux\u002Ftesting","03.javascript\u002F04.react\u002F06.redux\u002F07.testing",[2401,2405,2409,2413,2417],{"title":2402,"path":2403,"stem":2404},"Тестування Redux","\u002Fjavascript\u002Freact\u002Fredux\u002Ftesting\u002Fintro-testing","03.javascript\u002F04.react\u002F06.redux\u002F07.testing\u002F01.intro-testing",{"title":2406,"path":2407,"stem":2408},"Тестування Reducers","\u002Fjavascript\u002Freact\u002Fredux\u002Ftesting\u002Ftesting-reducers","03.javascript\u002F04.react\u002F06.redux\u002F07.testing\u002F02.testing-reducers",{"title":2410,"path":2411,"stem":2412},"Тестування Селекторів","\u002Fjavascript\u002Freact\u002Fredux\u002Ftesting\u002Ftesting-selectors","03.javascript\u002F04.react\u002F06.redux\u002F07.testing\u002F03.testing-selectors",{"title":2414,"path":2415,"stem":2416},"Тестування Компонентів (Integration)","\u002Fjavascript\u002Freact\u002Fredux\u002Ftesting\u002Ftesting-components","03.javascript\u002F04.react\u002F06.redux\u002F07.testing\u002F04.testing-components",{"title":2418,"path":2419,"stem":2420},"Тестування Async Thunks","\u002Fjavascript\u002Freact\u002Fredux\u002Ftesting\u002Ftesting-thunks","03.javascript\u002F04.react\u002F06.redux\u002F07.testing\u002F05.testing-thunks",{"title":2422,"icon":132,"path":2423,"stem":2424,"children":2425},"Ui Libraries","\u002Fjavascript\u002Freact\u002Fui-libraries","03.javascript\u002F04.react\u002F07.ui-libraries\u002Findex",[2426,2428,2432,2436,2440,2444,2448],{"title":2427,"path":2423,"stem":2424},"UI Бібліотеки в React",{"title":2429,"path":2430,"stem":2431},"Вступ до UI Бібліотек: Навіщо Винаходити Велосипед Двічі?","\u002Fjavascript\u002Freact\u002Fui-libraries\u002Fintroduction-to-ui-libraries","03.javascript\u002F04.react\u002F07.ui-libraries\u002F01.introduction-to-ui-libraries",{"title":2433,"path":2434,"stem":2435},"Філософія shadcn\u002Fui: \"Not a Component Library\"","\u002Fjavascript\u002Freact\u002Fui-libraries\u002Fshadcn-philosophy","03.javascript\u002F04.react\u002F07.ui-libraries\u002F02.shadcn-philosophy",{"title":2437,"path":2438,"stem":2439},"Установка та Налаштування shadcn\u002Fui","\u002Fjavascript\u002Freact\u002Fui-libraries\u002Fshadcn-installation","03.javascript\u002F04.react\u002F07.ui-libraries\u002F03.shadcn-installation",{"title":2441,"path":2442,"stem":2443},"Базові Компоненти shadcn\u002Fui: Фундамент Інтерфейсу","\u002Fjavascript\u002Freact\u002Fui-libraries\u002Fshadcn-components-basics","03.javascript\u002F04.react\u002F07.ui-libraries\u002F04.shadcn-components-basics",{"title":2445,"path":2446,"stem":2447},"Компоненти Форм: Побудова Інтерактивних Form","\u002Fjavascript\u002Freact\u002Fui-libraries\u002Fshadcn-components-forms","03.javascript\u002F04.react\u002F07.ui-libraries\u002F05.shadcn-components-forms",{"title":2449,"path":2450,"stem":2451},"Складні Компоненти: Dialog, Dropdown, Table та Command","\u002Fjavascript\u002Freact\u002Fui-libraries\u002Fshadcn-components-advanced","03.javascript\u002F04.react\u002F07.ui-libraries\u002F06.shadcn-components-advanced",{"title":2453,"icon":2454,"path":2455,"stem":2456,"children":2457,"page":59},"TypeScript","i-devicon-typescript","\u002Fjavascript\u002Ftypescript","03.javascript\u002F05.typescript",[2458,2462,2466,2470,2474,2478,2482,2486],{"title":2459,"path":2460,"stem":2461},"TypeScript: Броня для вашого коду","\u002Fjavascript\u002Ftypescript\u002Fintro-and-basic-types","03.javascript\u002F05.typescript\u002F01.intro-and-basic-types",{"title":2463,"path":2464,"stem":2465},"Майстерність Моделювання Даних: Інтерфейси та Просунуті Типи","\u002Fjavascript\u002Ftypescript\u002Finterfaces-and-advanced-types","03.javascript\u002F05.typescript\u002F02.interfaces-and-advanced-types",{"title":2467,"path":2468,"stem":2469},"Алхімія Типів: Generics та Utility Types","\u002Fjavascript\u002Ftypescript\u002Fgenerics-and-utilities","03.javascript\u002F05.typescript\u002F03.generics-and-utilities",{"title":2471,"path":2472,"stem":2473},"Архітектура та Шаблони: Класи в TypeScript","\u002Fjavascript\u002Ftypescript\u002Fclasses-and-oop","03.javascript\u002F05.typescript\u002F04.classes-and-oop",{"title":2475,"path":2476,"stem":2477},"Продакшн та Екосистема: Advanced Config & Workflow","\u002Fjavascript\u002Ftypescript\u002Fadvanced-patterns-and-config","03.javascript\u002F05.typescript\u002F05.advanced-patterns-and-config",{"title":2479,"path":2480,"stem":2481},"TypeScript у світі React","\u002Fjavascript\u002Ftypescript\u002Freact-basics","03.javascript\u002F05.typescript\u002F06.react-basics",{"title":2483,"path":2484,"stem":2485},"React + TypeScript: Продвинуті патерни","\u002Fjavascript\u002Ftypescript\u002Freact-advanced","03.javascript\u002F05.typescript\u002F07.react-advanced",{"title":2487,"path":2488,"stem":2489},"React + TypeScript: Екосистема та бібліотеки","\u002Fjavascript\u002Ftypescript\u002Freact-ecosystem","03.javascript\u002F05.typescript\u002F08.react-ecosystem",{"title":2491,"icon":2492,"path":2493,"stem":2494,"children":2495,"page":59},"Асинхронність","i-lucide-refresh-cw","\u002Fjavascript\u002Fasync-programming","03.javascript\u002F06.async-programming",[2496,2500,2504],{"title":2497,"path":2498,"stem":2499},"Event Loop: серце асинхронності в JavaScript","\u002Fjavascript\u002Fasync-programming\u002Fevent-loop-fundamentals","03.javascript\u002F06.async-programming\u002F01.event-loop-fundamentals",{"title":2501,"path":2502,"stem":2503},"Task Queue та Microtask Queue: пріоритети виконання","\u002Fjavascript\u002Fasync-programming\u002Ftask-queues","03.javascript\u002F06.async-programming\u002F02.task-queues",{"title":2505,"path":2506,"stem":2507},"Асинхронні патерни: від Callbacks до Async\u002FAwait","\u002Fjavascript\u002Fasync-programming\u002Fasync-patterns","03.javascript\u002F06.async-programming\u002F03.async-patterns",{"title":2509,"path":2510,"stem":2511},"Atomic Design","\u002Fjavascript\u002Fatomic-design","03.javascript\u002F2.atomic-design",{"title":2513,"icon":2514,"path":2515,"stem":2516,"children":2517,"page":59},"Java","i-devicon-java","\u002Fjava","04.java",[2518,2521,2524,2528,2532,2536,2540],{"title":162,"path":2519,"stem":2520},"\u002Fjava\u002Fdata-mapper-part1","04.java\u002F01.data-mapper-part1",{"title":166,"path":2522,"stem":2523},"\u002Fjava\u002Fdata-mapper-part2","04.java\u002F02.data-mapper-part2",{"title":2525,"path":2526,"stem":2527},"Service Layer: Організація бізнес-логіки","\u002Fjava\u002Fservice-layer","04.java\u002F03.service-layer",{"title":2529,"path":2530,"stem":2531},"Rich Domain Model та State Pattern","\u002Fjava\u002Frich-domain-model","04.java\u002F04.rich-domain-model",{"title":2533,"path":2534,"stem":2535},"Патерни для складної бізнес-логіки","\u002Fjava\u002Fbusiness-logic-patterns","04.java\u002F05.business-logic-patterns",{"title":2537,"path":2538,"stem":2539},"Обробка помилок та валідація","\u002Fjava\u002Ferror-handling-validation","04.java\u002F06.error-handling-validation",{"title":2541,"path":2542,"stem":2543,"children":2544,"page":59},"Проектування баз даних","\u002Fjava\u002Fpr2","04.java\u002Fpr2",[2545,2549,2553,2557,2561,2565,2569,2573,2577,2581,2585,2589,2593,2597,2601,2605,2609,2613,2617,2621,2625,2629,2633,2637,2641,2645,2649,2653,2657,2661,2665,2669,2673,2677,2681,2685,2689],{"title":2546,"path":2547,"stem":2548},"Концептуальне моделювання: Мистецтво розуміння предметної області","\u002Fjava\u002Fpr2\u002Fconceptual-modeling","04.java\u002Fpr2\u002F01.conceptual-modeling",{"title":2550,"path":2551,"stem":2552},"Логічне моделювання: Від бізнес-ідей до структур даних","\u002Fjava\u002Fpr2\u002Flogical-modeling","04.java\u002Fpr2\u002F02.logical-modeling",{"title":2554,"path":2555,"stem":2556},"Нормалізація: Гігієна даних та боротьба з аномаліями","\u002Fjava\u002Fpr2\u002Fnormalization","04.java\u002Fpr2\u002F03.normalization",{"title":2558,"path":2559,"stem":2560},"Фізична схема: Від абстракції до DDL","\u002Fjava\u002Fpr2\u002Fphysical-schema","04.java\u002Fpr2\u002F04.physical-schema",{"title":2562,"path":2563,"stem":2564},"Архітектурна класифікація таблиць","\u002Fjava\u002Fpr2\u002Ftable-classification","04.java\u002Fpr2\u002F05.table-classification",{"title":2566,"path":2567,"stem":2568},"Database Migrations: Версіонування схеми з Flyway","\u002Fjava\u002Fpr2\u002Fdatabase-migrations","04.java\u002Fpr2\u002F06.database-migrations",{"title":2570,"path":2571,"stem":2572},"А що, якби це була не реляційна БД?","\u002Fjava\u002Fpr2\u002Fbeyond-relational","04.java\u002Fpr2\u002F07.beyond-relational",{"title":2574,"path":2575,"stem":2576},"Object-Relational Impedance Mismatch: Два світи, що не хочуть дружити","\u002Fjava\u002Fpr2\u002Fimpedance-mismatch","04.java\u002Fpr2\u002F09.impedance-mismatch",{"title":2578,"path":2579,"stem":2580},"JDBC: Перший контакт із базою даних","\u002Fjava\u002Fpr2\u002Fjdbc-fundamentals","04.java\u002Fpr2\u002F10.jdbc-fundamentals",{"title":2582,"path":2583,"stem":2584},"Якість коду: Spotless, SpotBugs та SonarQube","\u002Fjava\u002Fpr2\u002F10a.code-quality","04.java\u002Fpr2\u002F10a.code-quality",{"title":2586,"path":2587,"stem":2588},"Connection Pool: Патерн Object Pool для JDBC-з'єднань","\u002Fjava\u002Fpr2\u002Fconnection-pool","04.java\u002Fpr2\u002F11.connection-pool",{"title":2590,"path":2591,"stem":2592},"Row Data Gateway: Об'єкт як обгортка рядка таблиці","\u002Fjava\u002Fpr2\u002Frow-data-gateway","04.java\u002Fpr2\u002F12.row-data-gateway",{"title":2594,"path":2595,"stem":2596},"Table Data Gateway: Фасад таблиці як архітектурний відступ","\u002Fjava\u002Fpr2\u002Ftable-data-gateway","04.java\u002Fpr2\u002F13.table-data-gateway",{"title":2598,"path":2599,"stem":2600},"Repository + Data Mapper: Правильна шарова архітектура з JDBC","\u002Fjava\u002Fpr2\u002Frepository-data-mapper","04.java\u002Fpr2\u002F14.repository-data-mapper",{"title":2602,"path":2603,"stem":2604},"Identity Map: Кешування сутностей у рамках сесії","\u002Fjava\u002Fpr2\u002Fidentity-map","04.java\u002Fpr2\u002F15.identity-map",{"title":2606,"path":2607,"stem":2608},"Unit of Work: Відстеження змін і координація JDBC-транзакцій","\u002Fjava\u002Fpr2\u002Funit-of-work","04.java\u002Fpr2\u002F16.unit-of-work",{"title":2610,"path":2611,"stem":2612},"Strategy: Замінювані SQL-стратегії для підтримки різних СУБД","\u002Fjava\u002Fpr2\u002Fstrategy-sql","04.java\u002Fpr2\u002F17.strategy-sql",{"title":2614,"path":2615,"stem":2616},"Proxy: Lazy Loading для One-To-Many колекцій","\u002Fjava\u002Fpr2\u002Fproxy-lazy-loading","04.java\u002Fpr2\u002F18.proxy-lazy-loading",{"title":2618,"path":2619,"stem":2620},"Generic Repository через Java Reflection: анотації та динамічний SQL","\u002Fjava\u002Fpr2\u002Fgeneric-repository-reflection","04.java\u002Fpr2\u002F19.generic-repository-reflection",{"title":2622,"path":2623,"stem":2624},"Specification Pattern: Композиція бізнес-правил для складних запитів","\u002Fjava\u002Fpr2\u002Fspecification-pattern","04.java\u002Fpr2\u002F20.specification-pattern",{"title":2626,"path":2627,"stem":2628},"Розширені можливості Specification Pattern: підзапити, агрегації та гібридний підхід","\u002Fjava\u002Fpr2\u002F20a.advanced-specifications","04.java\u002Fpr2\u002F20a.advanced-specifications",{"title":2630,"path":2631,"stem":2632},"Асинхронність у JDBC: Від блокуючих викликів до CompletableFuture","\u002Fjava\u002Fpr2\u002Fasynchronous-jdbc","04.java\u002Fpr2\u002F21.asynchronous-jdbc",{"title":2634,"path":2635,"stem":2636},"Інтеграційне тестування JDBC-репозиторіїв: Embedded H2 та патерн AAA","\u002Fjava\u002Fpr2\u002Fintegration-testing-h2","04.java\u002Fpr2\u002F22.integration-testing-h2",{"title":2638,"path":2639,"stem":2640},"Testcontainers: Тестування з реальною PostgreSQL у Docker-контейнерах","\u002Fjava\u002Fpr2\u002Fintegration-testing-testcontainers","04.java\u002Fpr2\u002F23.integration-testing-testcontainers",{"title":2642,"path":2643,"stem":2644},"Google Guice: Впровадження залежностей у JavaFX-проєкті","\u002Fjava\u002Fpr2\u002Fdependency-injection-guice","04.java\u002Fpr2\u002F24.dependency-injection-guice",{"title":2646,"path":2647,"stem":2648},"JavaFX: Основи побудови графічних інтерфейсів","\u002Fjava\u002Fpr2\u002Fjavafx-fundamentals","04.java\u002Fpr2\u002F25.javafx-fundamentals",{"title":2650,"path":2651,"stem":2652},"Properties та Bindings: Реактивність у JavaFX","\u002Fjava\u002Fpr2\u002Fjavafx-properties-bindings","04.java\u002Fpr2\u002F26.javafx-properties-bindings",{"title":2654,"path":2655,"stem":2656},"MVC vs MVP vs MVVM: Еволюція архітектурних патернів UI","\u002Fjava\u002Fpr2\u002Fui-architecture-patterns","04.java\u002Fpr2\u002F27.ui-architecture-patterns",{"title":2658,"path":2659,"stem":2660},"MVVM на практиці: Побудова ViewModel","\u002Fjava\u002Fpr2\u002Fmvvm-viewmodel-implementation","04.java\u002Fpr2\u002F28.mvvm-viewmodel-implementation",{"title":2662,"path":2663,"stem":2664},"View та Controller: Зв'язування з ViewModel через FXML","\u002Fjava\u002Fpr2\u002Fmvvm-view-controller","04.java\u002Fpr2\u002F29.mvvm-view-controller",{"title":2666,"path":2667,"stem":2668},"Інтеграція MVVM з Guice: Автоматична ін'єкція залежностей","\u002Fjava\u002Fpr2\u002Fmvvm-guice-integration","04.java\u002Fpr2\u002F30.mvvm-guice-integration",{"title":2670,"path":2671,"stem":2672},"Валідація та обробка помилок у MVVM","\u002Fjava\u002Fpr2\u002Fmvvm-validation-error-handling","04.java\u002Fpr2\u002F31.mvvm-validation-error-handling",{"title":2674,"path":2675,"stem":2676},"Навігація та управління екранами у JavaFX MVVM","\u002Fjava\u002Fpr2\u002Fmvvm-navigation-screen-management","04.java\u002Fpr2\u002F32.mvvm-navigation-screen-management",{"title":2678,"path":2679,"stem":2680},"Тестування JavaFX MVVM-додатків","\u002Fjava\u002Fpr2\u002Fmvvm-testing","04.java\u002Fpr2\u002F33.mvvm-testing",{"title":2682,"path":2683,"stem":2684},"Стилізація та теми у JavaFX: CSS та User Experience","\u002Fjava\u002Fpr2\u002Fjavafx-styling-themes","04.java\u002Fpr2\u002F34.javafx-styling-themes",{"title":2686,"path":2687,"stem":2688},"AtlantaFX: Сучасні теми для JavaFX додатків","\u002Fjava\u002Fpr2\u002Fatlantafx-modern-themes","04.java\u002Fpr2\u002F35.atlantafx-modern-themes",{"title":2690,"path":2691,"stem":2692},"Пакування та розповсюдження JavaFX-додатків","\u002Fjava\u002Fpr2\u002Fjar-packaging-distribution","04.java\u002Fpr2\u002F36.jar-packaging-distribution",{"title":2694,"icon":2695,"path":2696,"stem":2697,"children":2698,"page":59},"Python","i-devicon-python","\u002Fpython","05.python",[2699,2703,2706,2710,2714,2718,2722,2726,2730,2734,2738,2742,2746,2750,2754,2815],{"title":2700,"path":2701,"stem":2702},"Модулі, Пакети та Віртуальні Середовища","\u002Fpython\u002Fmodules-packages-venv","05.python\u002F00.modules-packages-venv",{"title":71,"path":2704,"stem":2705},"\u002Fpython\u002Fclasses-objects","05.python\u002F01.classes-objects",{"title":2707,"path":2708,"stem":2709},"Інкапсуляція, Керування Доступом та Властивості","\u002Fpython\u002Fencapsulation","05.python\u002F02.encapsulation",{"title":2711,"path":2712,"stem":2713},"Наслідування, MRO та суперсила super()","\u002Fpython\u002Finheritance-mro","05.python\u002F03.inheritance-mro",{"title":2715,"path":2716,"stem":2717},"Абстракція — ABC проти Статичних Протоколів (PEP 544)","\u002Fpython\u002Fabstraction-protocols","05.python\u002F04.abstraction-protocols",{"title":2719,"path":2720,"stem":2721},"Магічні методи (Dunder) та Емуляція протоколів","\u002Fpython\u002Fdunder-methods","05.python\u002F05.dunder-methods",{"title":2723,"path":2724,"stem":2725},"Декоратори та Керування життєвим циклом методів","\u002Fpython\u002Fdecorators-static-class","05.python\u002F06.decorators-static-class",{"title":2727,"path":2728,"stem":2729},"Дескриптори — Магія доступу до атрибутів","\u002Fpython\u002Fdescriptors","05.python\u002F07.descriptors",{"title":2731,"path":2732,"stem":2733},"Метакласи — Динамічне створення класів під капотом CPython","\u002Fpython\u002Fmetaclasses","05.python\u002F08.metaclasses",{"title":2735,"path":2736,"stem":2737},"Dataclasses, NamedTuple та сучасні контейнери Python","\u002Fpython\u002Fmodern-containers","05.python\u002F09.modern-containers",{"title":2739,"path":2740,"stem":2741},"GIL та модель конкурентності CPython — фундамент перед потоками і процесами","\u002Fpython\u002Fgil-concurrency-intro","05.python\u002F11.gil-concurrency-intro",{"title":2743,"path":2744,"stem":2745},"Threading — конкурентність для I\u002FO-bound задач","\u002Fpython\u002Fthreading","05.python\u002F12.threading",{"title":2747,"path":2748,"stem":2749},"Multiprocessing — справжній паралелізм для CPU-bound задач","\u002Fpython\u002Fmultiprocessing","05.python\u002F13.multiprocessing",{"title":2751,"path":2752,"stem":2753},"asyncio — кооперативна конкурентність та event loop","\u002Fpython\u002Fasyncio","05.python\u002F14.asyncio",{"title":2755,"icon":92,"path":2756,"stem":2757,"children":2758,"page":59},"FastAPI","\u002Fpython\u002Ffastapi","05.python\u002Ffastapi",[2759,2763,2767,2771,2775,2779,2783,2787,2791,2795,2799,2803,2807,2811],{"title":2760,"path":2761,"stem":2762},"Глибокий Typing та Pydantic v2 — від анотацій до валідації","\u002Fpython\u002Ffastapi\u002Ftyping-pydantic","05.python\u002Ffastapi\u002F15.typing-pydantic",{"title":2764,"path":2765,"stem":2766},"WSGI, ASGI та Python Web-екосистема","\u002Fpython\u002Ffastapi\u002Fwsgi-asgi-ecosystem","05.python\u002Ffastapi\u002F16.wsgi-asgi-ecosystem",{"title":2768,"path":2769,"stem":2770},"FastAPI: Перший додаток, Uvicorn та OpenAPI","\u002Fpython\u002Ffastapi\u002Ffastapi-intro","05.python\u002Ffastapi\u002F17.fastapi-intro",{"title":2772,"path":2773,"stem":2774},"Маршрутизація, параметри запитів та APIRouter","\u002Fpython\u002Ffastapi\u002Ffastapi-routing-params","05.python\u002Ffastapi\u002F18.fastapi-routing-params",{"title":2776,"path":2777,"stem":2778},"Pydantic v2 у FastAPI — схеми, валідація та серіалізація","\u002Fpython\u002Ffastapi\u002Ffastapi-pydantic-schemas","05.python\u002Ffastapi\u002F19.fastapi-pydantic-schemas",{"title":2780,"path":2781,"stem":2782},"Dependency Injection — серце архітектури FastAPI","\u002Fpython\u002Ffastapi\u002Ffastapi-dependency-injection","05.python\u002Ffastapi\u002F20.fastapi-dependency-injection",{"title":2784,"path":2785,"stem":2786},"Обробка помилок, Middleware та CORS у FastAPI","\u002Fpython\u002Ffastapi\u002Ffastapi-errors-middleware","05.python\u002Ffastapi\u002F21.fastapi-errors-middleware",{"title":2788,"path":2789,"stem":2790},"SQLAlchemy 2.0 — ORM, Core та Async Engine","\u002Fpython\u002Ffastapi\u002Fsqlalchemy-orm","05.python\u002Ffastapi\u002F22.sqlalchemy-orm",{"title":2792,"path":2793,"stem":2794},"Alembic — міграції бази даних","\u002Fpython\u002Ffastapi\u002Falembic-migrations","05.python\u002Ffastapi\u002F23.alembic-migrations",{"title":2796,"path":2797,"stem":2798},"Repository Pattern та Clean Architecture у FastAPI","\u002Fpython\u002Ffastapi\u002Ffastapi-repository-clean-arch","05.python\u002Ffastapi\u002F24.fastapi-repository-clean-arch",{"title":2800,"path":2801,"stem":2802},"Автентифікація та авторизація — JWT, OAuth2, RBAC","\u002Fpython\u002Ffastapi\u002Ffastapi-auth-security","05.python\u002Ffastapi\u002F25.fastapi-auth-security",{"title":2804,"path":2805,"stem":2806},"Тестування FastAPI — pytest, httpx, fixtures","\u002Fpython\u002Ffastapi\u002Ffastapi-testing","05.python\u002Ffastapi\u002F26.fastapi-testing",{"title":2808,"path":2809,"stem":2810},"Async на повну — Background Tasks, WebSockets, SSE та Celery","\u002Fpython\u002Ffastapi\u002Ffastapi-async-advanced","05.python\u002Ffastapi\u002F27.fastapi-async-advanced",{"title":2812,"path":2813,"stem":2814},"Deployment — Docker, CI\u002FCD, Monitoring","\u002Fpython\u002Ffastapi\u002Ffastapi-deployment","05.python\u002Ffastapi\u002F28.fastapi-deployment",{"title":2816,"path":2817,"stem":2818},"[object Object]","\u002Fpython\u002Foop-plan","05.python\u002Foop-plan",{"title":2820,"icon":2821,"path":2822,"stem":2823,"children":2824,"page":59},"Бази даних","i-lucide-database","\u002Fdatabases","06.databases",[2825,2855,2878,2915,2944,2962,2996,3008,3017],{"title":2826,"icon":2827,"path":2828,"stem":2829,"children":2830,"page":59},"Intro","i-lucide-play","\u002Fdatabases\u002Fintro","06.databases\u002F01.intro",[2831,2835,2839,2843,2847,2851],{"title":2832,"path":2833,"stem":2834},"Введення в теорію баз даних","\u002Fdatabases\u002Fintro\u002Fintroduction-to-databases","06.databases\u002F01.intro\u002F01.introduction-to-databases",{"title":2836,"path":2837,"stem":2838},"Реляційна модель даних","\u002Fdatabases\u002Fintro\u002Frelational-model-theory","06.databases\u002F01.intro\u002F02.relational-model-theory",{"title":2840,"path":2841,"stem":2842},"ER-моделювання","\u002Fdatabases\u002Fintro\u002Fer-modeling","06.databases\u002F01.intro\u002F03.er-modeling",{"title":2844,"path":2845,"stem":2846},"Логічне проектування БД","\u002Fdatabases\u002Fintro\u002Flogical-schema","06.databases\u002F01.intro\u002F04.logical-schema",{"title":2848,"path":2849,"stem":2850},"Класифікація таблиць","\u002Fdatabases\u002Fintro\u002Ftable-classification","06.databases\u002F01.intro\u002F05.table-classification",{"title":2852,"path":2853,"stem":2854},"PlantUML для баз даних","\u002Fdatabases\u002Fintro\u002Fplantuml-diagrams","06.databases\u002F01.intro\u002F06.plantuml-diagrams",{"title":2856,"icon":2821,"path":2857,"stem":2858,"children":2859,"page":59},"MS SQL Server Start","\u002Fdatabases\u002Fms-sql-server-start","06.databases\u002F02.ms-sql-server-start",[2860,2864,2870,2874],{"title":2861,"path":2862,"stem":2863},"Типи даних у MS SQL Server","\u002Fdatabases\u002Fms-sql-server-start\u002Fdata-types","06.databases\u002F02.ms-sql-server-start\u002F01.data-types",{"title":2865,"path":2866,"stem":2867,"children":2868},"Індекси у MS SQL Server","\u002Fdatabases\u002Fms-sql-server-start\u002Fsql-indexes","06.databases\u002F02.ms-sql-server-start\u002F02.sql-indexes",[2869],{"title":2865,"path":2866,"stem":2867},{"title":2871,"path":2872,"stem":2873},"Системні бази даних MS SQL Server","\u002Fdatabases\u002Fms-sql-server-start\u002Fsystem-databases","06.databases\u002F02.ms-sql-server-start\u002F03.system-databases",{"title":2875,"path":2876,"stem":2877},"Огляд мови SQL та запитів","\u002Fdatabases\u002Fms-sql-server-start\u002Fsql-queries-overview","06.databases\u002F02.ms-sql-server-start\u002F04.sql-queries-overview",{"title":2879,"icon":2821,"path":2880,"stem":2881,"children":2882,"page":59},"SQL","\u002Fdatabases\u002Fsql","06.databases\u002F03.sql",[2883,2887,2891,2895,2899,2903,2907,2911],{"title":2884,"path":2885,"stem":2886},"Налаштування демонстраційної бази даних","\u002Fdatabases\u002Fsql\u002Fsample-database-setup","06.databases\u002F03.sql\u002F00.sample-database-setup",{"title":2888,"path":2889,"stem":2890},"DDL - Створення таблиць (CREATE TABLE)","\u002Fdatabases\u002Fsql\u002Fddl-create-table","06.databases\u002F03.sql\u002F01.ddl-create-table",{"title":2892,"path":2893,"stem":2894},"DDL - Зміна та видалення таблиць (ALTER, DROP)","\u002Fdatabases\u002Fsql\u002Fddl-alter-drop-table","06.databases\u002F03.sql\u002F02.ddl-alter-drop-table",{"title":2896,"path":2897,"stem":2898},"SELECT запити - Основи","\u002Fdatabases\u002Fsql\u002Fselect-queries-fundamentals","06.databases\u002F03.sql\u002F03.select-queries-fundamentals",{"title":2900,"path":2901,"stem":2902},"SELECT запити - Розширені можливості","\u002Fdatabases\u002Fsql\u002Fselect-queries-advanced","06.databases\u002F03.sql\u002F04.select-queries-advanced",{"title":2904,"path":2905,"stem":2906},"INSERT запити - Додавання даних","\u002Fdatabases\u002Fsql\u002Finsert-queries","06.databases\u002F03.sql\u002F05.insert-queries",{"title":2908,"path":2909,"stem":2910},"UPDATE та DELETE запити","\u002Fdatabases\u002Fsql\u002Fupdate-delete-queries","06.databases\u002F03.sql\u002F06.update-delete-queries",{"title":2912,"path":2913,"stem":2914},"Транзакції в SQL","\u002Fdatabases\u002Fsql\u002Ftransactions","06.databases\u002F03.sql\u002F07.transactions",{"title":2916,"icon":2821,"path":2917,"stem":2918,"children":2919,"page":59},"Multi Table Databases","\u002Fdatabases\u002Fmulti-table-databases","06.databases\u002F04.multi-table-databases",[2920,2924,2928,2932,2936,2940],{"title":2921,"path":2922,"stem":2923},"Зв'язки та нормалізація БД","\u002Fdatabases\u002Fmulti-table-databases\u002Frelationships-and-normalization","06.databases\u002F04.multi-table-databases\u002F00.relationships-and-normalization",{"title":2925,"path":2926,"stem":2927},"INNER JOIN - З'єднання таблиць","\u002Fdatabases\u002Fmulti-table-databases\u002Finner-join","06.databases\u002F04.multi-table-databases\u002F01.inner-join",{"title":2929,"path":2930,"stem":2931},"OUTER JOINs - LEFT, RIGHT, FULL","\u002Fdatabases\u002Fmulti-table-databases\u002Fouter-joins","06.databases\u002F04.multi-table-databases\u002F02.outer-joins",{"title":2933,"path":2934,"stem":2935},"CROSS та SELF JOINs","\u002Fdatabases\u002Fmulti-table-databases\u002Fcross-self-joins","06.databases\u002F04.multi-table-databases\u002F03.cross-self-joins",{"title":2937,"path":2938,"stem":2939},"Підзапити (Subqueries)","\u002Fdatabases\u002Fmulti-table-databases\u002Fsubqueries","06.databases\u002F04.multi-table-databases\u002F04.subqueries",{"title":2941,"path":2942,"stem":2943},"Агрегації з JOIN","\u002Fdatabases\u002Fmulti-table-databases\u002Faggregations-with-joins","06.databases\u002F04.multi-table-databases\u002F05.aggregations-with-joins",{"title":2945,"icon":2946,"path":2947,"stem":2948,"children":2949,"page":59},"Aggregate Functions","i-lucide-calculator","\u002Fdatabases\u002Faggregate-functions","06.databases\u002F05.aggregate-functions",[2950,2954,2958],{"title":2951,"path":2952,"stem":2953},"Функції агрегування в MS SQL Server","\u002Fdatabases\u002Faggregate-functions\u002Fintroduction-aggregate-functions","06.databases\u002F05.aggregate-functions\u002F01.introduction-aggregate-functions",{"title":2955,"path":2956,"stem":2957},"Групування даних в MS SQL Server","\u002Fdatabases\u002Faggregate-functions\u002Fgrouping-data","06.databases\u002F05.aggregate-functions\u002F02.grouping-data",{"title":2959,"path":2960,"stem":2961},"Підзапити з агрегатними функціями","\u002Fdatabases\u002Faggregate-functions\u002Fsubqueries-aggregates","06.databases\u002F05.aggregate-functions\u002F03.subqueries-aggregates",{"title":2963,"icon":2964,"path":2965,"stem":2966,"children":2967,"page":59},"Тригери та зберігаємі процедури","i-lucide-database-zap","\u002Fdatabases\u002Ftriggers-stored-procedures","06.databases\u002F07.triggers-stored-procedures",[2968,2972,2976,2980,2984,2988,2992],{"title":2969,"path":2970,"stem":2971},"DML-тригери","\u002Fdatabases\u002Ftriggers-stored-procedures\u002Fdml-triggers","06.databases\u002F07.triggers-stored-procedures\u002F01.dml-triggers",{"title":2973,"path":2974,"stem":2975},"DDL-тригери","\u002Fdatabases\u002Ftriggers-stored-procedures\u002Fddl-triggers","06.databases\u002F07.triggers-stored-procedures\u002F02.ddl-triggers",{"title":2977,"path":2978,"stem":2979},"Transact-SQL розширення","\u002Fdatabases\u002Ftriggers-stored-procedures\u002Ftransact-sql-extensions","06.databases\u002F07.triggers-stored-procedures\u002F03.transact-sql-extensions",{"title":2981,"path":2982,"stem":2983},"Транзакції","\u002Fdatabases\u002Ftriggers-stored-procedures\u002Ftransactions","06.databases\u002F07.triggers-stored-procedures\u002F04.transactions",{"title":2985,"path":2986,"stem":2987},"Зберігаємі процедури","\u002Fdatabases\u002Ftriggers-stored-procedures\u002Fstored-procedures","06.databases\u002F07.triggers-stored-procedures\u002F05.stored-procedures",{"title":2989,"path":2990,"stem":2991},"Користувацькі функції","\u002Fdatabases\u002Ftriggers-stored-procedures\u002Fuser-defined-functions","06.databases\u002F07.triggers-stored-procedures\u002F06.user-defined-functions",{"title":2993,"path":2994,"stem":2995},"Безпека баз даних","\u002Fdatabases\u002Ftriggers-stored-procedures\u002Fsecurity","06.databases\u002F07.triggers-stored-procedures\u002F08.security",{"title":2993,"icon":793,"path":2997,"stem":2998,"children":2999,"page":59},"\u002Fdatabases\u002Fsecurity","06.databases\u002F08.security",[3000,3004],{"title":3001,"path":3002,"stem":3003},"Вступ до безпеки баз даних","\u002Fdatabases\u002Fsecurity\u002Fintroduction","06.databases\u002F08.security\u002F01.introduction",{"title":3005,"path":3006,"stem":3007},"Системні представлення та метадані","\u002Fdatabases\u002Fsecurity\u002Fsystem-views","06.databases\u002F08.security\u002F02.system-views",{"title":3009,"icon":3010,"path":3011,"stem":3012,"children":3013,"page":59},"Резервне копіювання та відновлення","i-lucide-database-backup","\u002Fdatabases\u002Fbackup-recovery","06.databases\u002F09.backup-recovery",[3014],{"title":3009,"path":3015,"stem":3016},"\u002Fdatabases\u002Fbackup-recovery\u002Fbackup-restore","06.databases\u002F09.backup-recovery\u002F01.backup-restore",{"title":3018,"icon":3019,"path":3020,"stem":3021,"children":3022,"page":59},"Повнотекстовий пошук","i-lucide-search","\u002Fdatabases\u002Ffull-text-search","06.databases\u002F10.full-text-search",[3023],{"title":3018,"path":3024,"stem":3025},"\u002Fdatabases\u002Ffull-text-search\u002Ffull-text-search","06.databases\u002F10.full-text-search\u002F01.full-text-search",{"title":3027,"icon":3028,"path":3029,"stem":3030,"children":3031,"page":59},"Tools","i-lucide-wrench","\u002Ftools","07.tools",[3032,3108],{"title":3033,"icon":3034,"path":3035,"stem":3036,"children":3037},"Docker","i-simple-icons-docker","\u002Ftools\u002Fdocker","07.tools\u002F01.docker\u002Findex",[3038,3040,3044,3048,3052,3056,3060,3064,3068,3072,3076,3080,3084,3088,3092,3096,3100,3104],{"title":3039,"path":3035,"stem":3036},"Docker: від нуля до production",{"title":3041,"path":3042,"stem":3043},"Контейнеризація — від проблеми до рішення","\u002Ftools\u002Fdocker\u002Fcontainerization-concept","07.tools\u002F01.docker\u002F01.containerization-concept",{"title":3045,"path":3046,"stem":3047},"Docker — що це і навіщо?","\u002Ftools\u002Fdocker\u002Fdocker-what-and-why","07.tools\u002F01.docker\u002F02.docker-what-and-why",{"title":3049,"path":3050,"stem":3051},"Архітектура Docker Engine","\u002Ftools\u002Fdocker\u002Fdocker-architecture","07.tools\u002F01.docker\u002F03.docker-architecture",{"title":3053,"path":3054,"stem":3055},"Встановлення Docker","\u002Ftools\u002Fdocker\u002Finstallation","07.tools\u002F01.docker\u002F04.installation",{"title":3057,"path":3058,"stem":3059},"Перший контейнер — docker run","\u002Ftools\u002Fdocker\u002Ffirst-container","07.tools\u002F01.docker\u002F05.first-container",{"title":3061,"path":3062,"stem":3063},"Життєвий цикл контейнера","\u002Ftools\u002Fdocker\u002Fcontainer-lifecycle","07.tools\u002F01.docker\u002F06.container-lifecycle",{"title":3065,"path":3066,"stem":3067},"Docker Images — фундаментальні концепції","\u002Ftools\u002Fdocker\u002Fdocker-images-fundamentals","07.tools\u002F01.docker\u002F07.docker-images-fundamentals",{"title":3069,"path":3070,"stem":3071},"Dockerfile — основи","\u002Ftools\u002Fdocker\u002Fdockerfile-basics","07.tools\u002F01.docker\u002F08.dockerfile-basics",{"title":3073,"path":3074,"stem":3075},"Dockerfile — просунуті техніки","\u002Ftools\u002Fdocker\u002Fdockerfile-advanced","07.tools\u002F01.docker\u002F09.dockerfile-advanced",{"title":3077,"path":3078,"stem":3079},"Build Context та кешування шарів","\u002Ftools\u002Fdocker\u002Fbuild-context-and-cache","07.tools\u002F01.docker\u002F10.build-context-and-cache",{"title":3081,"path":3082,"stem":3083},"Реєстри Docker-образів","\u002Ftools\u002Fdocker\u002Fimage-registries","07.tools\u002F01.docker\u002F11.image-registries",{"title":3085,"path":3086,"stem":3087},"Контейнеризація .NET додатків","\u002Ftools\u002Fdocker\u002Fdotnet-containerization","07.tools\u002F01.docker\u002F12.dotnet-containerization",{"title":3089,"path":3090,"stem":3091},"Томи та збереження даних","\u002Ftools\u002Fdocker\u002Fvolumes-and-data","07.tools\u002F01.docker\u002F13.volumes-and-data",{"title":3093,"path":3094,"stem":3095},"Основи мережі в Docker","\u002Ftools\u002Fdocker\u002Fnetworking-basics","07.tools\u002F01.docker\u002F14.networking-basics",{"title":3097,"path":3098,"stem":3099},"Змінні оточення та конфігурація","\u002Ftools\u002Fdocker\u002Fenvironment-and-configuration","07.tools\u002F01.docker\u002F15.environment-and-configuration",{"title":3101,"path":3102,"stem":3103},"Docker Compose — оркестрація контейнерів","\u002Ftools\u002Fdocker\u002Fdocker-compose-basics","07.tools\u002F01.docker\u002F16.docker-compose-basics",{"title":3105,"path":3106,"stem":3107},"Docker Compose — Multi-Service застосунки","\u002Ftools\u002Fdocker\u002Fcompose-multi-service","07.tools\u002F01.docker\u002F17.compose-multi-service",{"title":3109,"icon":3110,"path":3111,"stem":3112,"children":3113},"Kubernetes","simple-icons:kubernetes","\u002Ftools\u002Fkubernetes","07.tools\u002F02.kubernetes\u002Findex",[3114,3116,3120,3124,3128,3132,3136,3140,3144],{"title":3115,"path":3111,"stem":3112},"Kubernetes: від розробки до production",{"title":3117,"path":3118,"stem":3119},"Kubernetes — коли Docker Compose більше не вистачає","\u002Ftools\u002Fkubernetes\u002Fwhy-kubernetes","07.tools\u002F02.kubernetes\u002F01.why-kubernetes",{"title":3121,"path":3122,"stem":3123},"Архітектура Kubernetes — анатомія кластера","\u002Ftools\u002Fkubernetes\u002Fkubernetes-architecture","07.tools\u002F02.kubernetes\u002F02.kubernetes-architecture",{"title":3125,"path":3126,"stem":3127},"Локальне середовище — minikube, kind та k3s","\u002Ftools\u002Fkubernetes\u002Flocal-environment","07.tools\u002F02.kubernetes\u002F03.local-environment",{"title":3129,"path":3130,"stem":3131},"Pod — атомарна одиниця Kubernetes","\u002Ftools\u002Fkubernetes\u002Fpods-and-containers","07.tools\u002F02.kubernetes\u002F04.pods-and-containers",{"title":3133,"path":3134,"stem":3135},"Патерни використання Pod","\u002Ftools\u002Fkubernetes\u002Fpod-patterns","07.tools\u002F02.kubernetes\u002F05.pod-patterns",{"title":3137,"path":3138,"stem":3139},"Deployment — декларативне управління Pod","\u002Ftools\u002Fkubernetes\u002Fdeployment-basics","07.tools\u002F02.kubernetes\u002F06.deployment-basics",{"title":3141,"path":3142,"stem":3143},"Rolling Updates та управління життєвим циклом Deployment","\u002Ftools\u002Fkubernetes\u002Fdeployment-rolling-updates","07.tools\u002F02.kubernetes\u002F07.deployment-rolling-updates",{"title":3145,"path":3146,"stem":3147},"Service — мережева абстракція для Pod","\u002Ftools\u002Fkubernetes\u002Fservices-networking","07.tools\u002F02.kubernetes\u002F08.services-networking",{"title":3149,"icon":3150,"path":3151,"stem":3152,"children":3153,"page":59},"Software Engineering","i-lucide-code-2","\u002Fsoftware-engineering","09.software-engineering",[3154,3158,3162,3166,3170,3174,3178,3182,3186,3190,3194],{"title":3155,"path":3156,"stem":3157},"1. Аналіз предметної області. Експертні знання та складність","\u002Fsoftware-engineering\u002Fintro-subdomains","09.software-engineering\u002F01.intro-subdomains",{"title":3159,"path":3160,"stem":3161},"2. Обмежені контексти. Інтеграція обмежених контекстів","\u002Fsoftware-engineering\u002Fintegrating-limited-contexts","09.software-engineering\u002F02.integrating-limited-contexts",{"title":3163,"path":3164,"stem":3165},"3. Реалізація простої бізнес-логіки","\u002Fsoftware-engineering\u002Fsimple","09.software-engineering\u002F03.simple",{"title":3167,"path":3168,"stem":3169},"4. Опрацювання складної бізнес-логіки","\u002Fsoftware-engineering\u002Fcomplex-business-logic","09.software-engineering\u002F04.complex-business-logic",{"title":3171,"path":3172,"stem":3173},"5. Моделювання фактора часу. Подієво-орієнтована архітектура.","\u002Fsoftware-engineering\u002Fmodelling-the-time-factor","09.software-engineering\u002F05.modelling-the-time-factor",{"title":3175,"path":3176,"stem":3177},"6. Архітектурні патерни","\u002Fsoftware-engineering\u002Farchitectural-patterns","09.software-engineering\u002F06.architectural-patterns",{"title":3179,"path":3180,"stem":3181},"Паттерни взаємодії","\u002Fsoftware-engineering\u002Fpatterns-of-interaction","09.software-engineering\u002F07.patterns-of-interaction",{"title":3183,"path":3184,"stem":3185},"Евристика проєктування","\u002Fsoftware-engineering\u002Fdesign-heuristics","09.software-engineering\u002F08.design-heuristics",{"title":3187,"path":3188,"stem":3189},"Еволюція проєктних рішень","\u002Fsoftware-engineering\u002Fevolution-of-design-solutions","09.software-engineering\u002F09.evolution-of-design-solutions",{"title":3191,"path":3192,"stem":3193},"EventStorming","\u002Fsoftware-engineering\u002Feventstorming","09.software-engineering\u002F10.eventstorming",{"title":3195,"path":3196,"stem":3197},"DDD на практиці","\u002Fsoftware-engineering\u002Fddd-in-practice","09.software-engineering\u002F11.ddd-in-practice",{"title":3199,"icon":943,"path":3200,"stem":3201,"children":3202,"page":59},"DDD","\u002Fddd","10.ddd",[3203,3207,3211,3215,3219,3223,3227,3231,3235,3239,3243,3247,3251],{"title":3204,"path":3205,"stem":3206},"Аналіз предметної області","\u002Fddd\u002Fdomain-analysis","10.ddd\u002F01.domain-analysis",{"title":3208,"path":3209,"stem":3210},"Експертні знання про предметну область","\u002Fddd\u002Fdomain-expert-knowledge","10.ddd\u002F02.domain-expert-knowledge",{"title":3212,"path":3213,"stem":3214},"Як осмислити складність предметної області","\u002Fddd\u002Fmanaging-domain-complexity","10.ddd\u002F03.managing-domain-complexity",{"title":3216,"path":3217,"stem":3218},"Інтеграція обмежених контекстів","\u002Fddd\u002Fbounded-context-integration","10.ddd\u002F04.bounded-context-integration",{"title":3220,"path":3221,"stem":3222},"Реалізація простої бізнес-логіки","\u002Fddd\u002Fsimple-business-logic","10.ddd\u002F05.simple-business-logic",{"title":3224,"path":3225,"stem":3226},"Обробка складної бізнес-логіки","\u002Fddd\u002Fcomplex-business-logic","10.ddd\u002F06.complex-business-logic",{"title":3228,"path":3229,"stem":3230},"Моделювання фактора часу","\u002Fddd\u002Ftime-modeling","10.ddd\u002F07.time-modeling",{"title":3232,"path":3233,"stem":3234},"Глава 8. Архітектурні Патерни","\u002Fddd\u002Farchitectural-patterns","10.ddd\u002F08.architectural-patterns",{"title":3236,"path":3237,"stem":3238},"Глава 9. Патерни Взаємодії","\u002Fddd\u002Finteraction-patterns","10.ddd\u002F09.interaction-patterns",{"title":3240,"path":3241,"stem":3242},"Глава 10. Проектні Евристики","\u002Fddd\u002Fdesign-heuristics","10.ddd\u002F10.design-heuristics",{"title":3244,"path":3245,"stem":3246},"Глава 11. Еволюція Проектних Рішень","\u002Fddd\u002Fevolution-of-design-decisions","10.ddd\u002F11.evolution-of-design-decisions",{"title":3248,"path":3249,"stem":3250},"Глава 12. EventStorming","\u002Fddd\u002Fevent-storming","10.ddd\u002F12.event-storming",{"title":3252,"path":3253,"stem":3254},"Глава 13. DDD на Практиці","\u002Fddd\u002Fddd-in-practice","10.ddd\u002F13.ddd-in-practice",{"title":3256,"icon":3257,"path":3258,"stem":3259,"children":3260,"page":59},"Media Streaming","i-lucide-video","\u002Fmedia-streaming","11.media-streaming",[3261,3265,3269,3273,3277,3281,3285],{"title":3262,"path":3263,"stem":3264},"01. Магія Стрімінгу: Що відбувається, коли ви натискаєте \"Play\"","\u002Fmedia-streaming\u002Fintroduction","11.media-streaming\u002F01.introduction",{"title":3266,"path":3267,"stem":3268},"02. Анатомія Медіа: Кодеки, Контейнери та Стиснення","\u002Fmedia-streaming\u002Faudio-video-anatomy","11.media-streaming\u002F02.audio-video-anatomy",{"title":3270,"path":3271,"stem":3272},"03. The Gym: FFmpeg Deep Dive","\u002Fmedia-streaming\u002Fffmpeg-gym","11.media-streaming\u002F03.ffmpeg-gym",{"title":3274,"path":3275,"stem":3276},"04. HLS Protocol: HTTP Live Streaming у Деталях","\u002Fmedia-streaming\u002Fhls-protocol","11.media-streaming\u002F04.hls-protocol",{"title":3278,"path":3279,"stem":3280},"05. DASH Protocol: Відкритий Стандарт","\u002Fmedia-streaming\u002Fdash-protocol","11.media-streaming\u002F05.dash-protocol",{"title":3282,"path":3283,"stem":3284},"06. Масштабування: CDN та Adaptive Bitrate","\u002Fmedia-streaming\u002Fcdn-and-adaptive-bitrate","11.media-streaming\u002F06.cdn-and-adaptive-bitrate",{"title":3286,"path":3287,"stem":3288},"07. Війна із Затримкою (Latency)","\u002Fmedia-streaming\u002Frealtime-latency","11.media-streaming\u002F07.realtime-latency",{"title":3290,"icon":3291,"path":3292,"stem":3293,"children":3294,"page":59},"HTML & CSS","i-devicon-html5","\u002Fhtml-css","12.html-css",[3295,3299,3303,3307,3311,3315,3319,3323,3327,3331,3335,3339,3343,3347,3351,3355,3359,3363,3367,3371,3375,3379,3383,3387,3391,3395,3399,3403,3407,3411],{"title":3296,"path":3297,"stem":3298},"Вступ до HTML. Структура документа","\u002Fhtml-css\u002Fintro-html-structure","12.html-css\u002F01.intro-html-structure",{"title":3300,"path":3301,"stem":3302},"Форматування тексту в HTML","\u002Fhtml-css\u002Fhtml-text-formatting","12.html-css\u002F02.html-text-formatting",{"title":3304,"path":3305,"stem":3306},"Посилання та зображення в HTML","\u002Fhtml-css\u002Fhtml-links-images","12.html-css\u002F03.html-links-images",{"title":3308,"path":3309,"stem":3310},"Списки та таблиці в HTML","\u002Fhtml-css\u002Fhtml-lists-tables","12.html-css\u002F04.html-lists-tables",{"title":3312,"path":3313,"stem":3314},"Форми в HTML","\u002Fhtml-css\u002Fhtml-forms","12.html-css\u002F05.html-forms",{"title":3316,"path":3317,"stem":3318},"Семантичні елементи HTML5","\u002Fhtml-css\u002Fhtml-semantic-elements","12.html-css\u002F06.html-semantic-elements",{"title":3320,"path":3321,"stem":3322},"Мультимедіа та розширені елементи HTML","\u002Fhtml-css\u002Fhtml-multimedia-advanced","12.html-css\u002F07.html-multimedia-advanced",{"title":3324,"path":3325,"stem":3326},"Мікророзмітка та SEO в HTML","\u002Fhtml-css\u002Fhtml-microdata-seo","12.html-css\u002F08.html-microdata-seo",{"title":3328,"path":3329,"stem":3330},"Вступ до CSS. Селектори та специфічність","\u002Fhtml-css\u002Fcss-intro-selectors","12.html-css\u002F09.css-intro-selectors",{"title":3332,"path":3333,"stem":3334},"Блокова модель CSS. Відступи. Box Sizing","\u002Fhtml-css\u002Fcss-box-model","12.html-css\u002F10.css-box-model",{"title":3336,"path":3337,"stem":3338},"Розміри у CSS: повний довідник одиниць і ключових слів","\u002Fhtml-css\u002F10a.css-sizing","12.html-css\u002F10a.css-sizing",{"title":3340,"path":3341,"stem":3342},"Типографіка в CSS. Шрифти та текст","\u002Fhtml-css\u002Fcss-typography","12.html-css\u002F11.css-typography",{"title":3344,"path":3345,"stem":3346},"Кольори та фони в CSS","\u002Fhtml-css\u002Fcss-colors-backgrounds","12.html-css\u002F12.css-colors-backgrounds",{"title":3348,"path":3349,"stem":3350},"Тіні та фільтри в CSS","\u002Fhtml-css\u002F12b.css-shadows-filters","12.html-css\u002F12b.css-shadows-filters",{"title":3352,"path":3353,"stem":3354},"CSS Flexbox: Фундамент гнучких макетів","\u002Fhtml-css\u002Fcss-flexbox-fundamentals","12.html-css\u002F13.css-flexbox-fundamentals",{"title":3356,"path":3357,"stem":3358},"CSS Flexbox: Вирівнювання та Позиціонування","\u002Fhtml-css\u002Fcss-flexbox-alignment-sizing-and-patterns","12.html-css\u002F14.css-flexbox-alignment-sizing-and-patterns",{"title":3360,"path":3361,"stem":3362},"CSS Grid. Двовимірний макет. Частина 1","\u002Fhtml-css\u002Fcss-layout-grid","12.html-css\u002F15.css-layout-grid",{"title":3364,"path":3365,"stem":3366},"CSS Grid. Двовимірний макет. Частина 2","\u002Fhtml-css\u002Fcss-layout-grid-advanced","12.html-css\u002F16.css-layout-grid-advanced",{"title":3368,"path":3369,"stem":3370},"Позиціонування в CSS. Z-index. Stacking Context","\u002Fhtml-css\u002Fcss-positioning","12.html-css\u002F17.css-positioning",{"title":3372,"path":3373,"stem":3374},"CSS Анімації та Переходи","\u002Fhtml-css\u002Fcss-animations-transitions","12.html-css\u002F18.css-animations-transitions",{"title":3376,"path":3377,"stem":3378},"Адаптивний дизайн. Media Queries. Частина 1","\u002Fhtml-css\u002Fcss-responsive-media-queries","12.html-css\u002F19.css-responsive-media-queries",{"title":3380,"path":3381,"stem":3382},"Адаптивний дизайн. Частина 2: clamp(), Container Queries, @layer","\u002Fhtml-css\u002Fcss-responsive-advanced","12.html-css\u002F20.css-responsive-advanced",{"title":3384,"path":3385,"stem":3386},"CSS Custom Properties. Методології. Сучасний CSS","\u002Fhtml-css\u002Fcss-variables-methodologies","12.html-css\u002F21.css-variables-methodologies",{"title":3388,"path":3389,"stem":3390},"Сучасний CSS 2023–2025: Нові можливості","\u002Fhtml-css\u002Fcss-modern-features","12.html-css\u002F22.css-modern-features",{"title":3392,"path":3393,"stem":3394},"CSS Nesting, @layer, @scope та @property: нативний препроцесор","\u002Fhtml-css\u002F22a.css-nesting-modern-syntax","12.html-css\u002F22a.css-nesting-modern-syntax",{"title":3396,"path":3397,"stem":3398},"CSS для форм та інтерактивних станів","\u002Fhtml-css\u002Fcss-forms-interactive-states","12.html-css\u002F23.css-forms-interactive-states",{"title":3400,"path":3401,"stem":3402},"Доступність у CSS (CSS Accessibility)","\u002Fhtml-css\u002Fcss-accessibility","12.html-css\u002F24.css-accessibility",{"title":3404,"path":3405,"stem":3406},"CSS-функції та сучасні sizing primitives","\u002Fhtml-css\u002Fcss-functions-sizing","12.html-css\u002F25.css-functions-sizing",{"title":3408,"path":3409,"stem":3410},"Rendering Pipeline і CSS Performance","\u002Fhtml-css\u002Fcss-rendering-performance","12.html-css\u002F26.css-rendering-performance",{"title":3412,"path":3413,"stem":3414},"CSS Best Practices: типові ситуації та правильні рішення","\u002Fhtml-css\u002Fcss-best-practices","12.html-css\u002F27.css-best-practices",{"title":3416,"path":3417,"stem":3418,"children":3419,"page":59},"AWS","\u002Faws","13.aws",[3420,3424,3428,3432,3436,3440,3444,3448,3452,3456,3460,3464,3468,3472,3476,3480,3484,3488],{"title":3421,"path":3422,"stem":3423},"Реєстрація AWS акаунту та студентські програми","\u002Faws\u002Faccount-registration","13.aws\u002F00.account-registration",{"title":3425,"path":3426,"stem":3427},"Вступ до хмарних обчислень та AWS","\u002Faws\u002Fintroduction-to-cloud","13.aws\u002F01.introduction-to-cloud",{"title":3429,"path":3430,"stem":3431},"AWS IAM — Identity and Access Management","\u002Faws\u002Fiam","13.aws\u002F02.iam",{"title":3433,"path":3434,"stem":3435},"AWS IAM CLI — Довідник команд","\u002Faws\u002F02a.iam-doc","13.aws\u002F02a.iam-doc",{"title":3437,"path":3438,"stem":3439},"Docker та контейнеризація в AWS — ECR, ECS та Fargate","\u002Faws\u002Fdocker-ecs","13.aws\u002F03.docker-ecs",{"title":3441,"path":3442,"stem":3443},"AWS ECR \u002F ECS CLI — Довідник команд","\u002Faws\u002F03a.docker-ecs-doc","13.aws\u002F03a.docker-ecs-doc",{"title":3445,"path":3446,"stem":3447},"Amazon EC2 — Elastic Compute Cloud","\u002Faws\u002Fec2","13.aws\u002F04.ec2",{"title":3449,"path":3450,"stem":3451},"AWS EC2 CLI — Довідник команд","\u002Faws\u002F04a.ec2-doc","13.aws\u002F04a.ec2-doc",{"title":3453,"path":3454,"stem":3455},"Elastic Load Balancing та Auto Scaling","\u002Faws\u002Falb-asg","13.aws\u002F05.alb-asg",{"title":3457,"path":3458,"stem":3459},"Amazon S3 — Simple Storage Service","\u002Faws\u002Fs3","13.aws\u002F06.s3",{"title":3461,"path":3462,"stem":3463},"Amazon CloudFront — Content Delivery Network","\u002Faws\u002Fcloudfront","13.aws\u002F07.cloudfront",{"title":3465,"path":3466,"stem":3467},"Amazon RDS — Relational Database Service","\u002Faws\u002Frds","13.aws\u002F08.rds",{"title":3469,"path":3470,"stem":3471},"Amazon DynamoDB — NoSQL Database","\u002Faws\u002Fdynamodb","13.aws\u002F09.dynamodb",{"title":3473,"path":3474,"stem":3475},"AWS Lambda та Serverless Compute","\u002Faws\u002Flambda","13.aws\u002F10.lambda",{"title":3477,"path":3478,"stem":3479},"Amazon Bedrock - Foundation Models, RAG та Agents","\u002Faws\u002Fbedrock","13.aws\u002F22.bedrock",{"title":3481,"path":3482,"stem":3483},"Amazon Rekognition - Комп'ютерний зір","\u002Faws\u002Frekognition","13.aws\u002F23.rekognition",{"title":3485,"path":3486,"stem":3487},"Amazon Textract - Інтелектуальний аналіз документів","\u002Faws\u002Ftextract","13.aws\u002F24.textract",{"title":3489,"path":3490,"stem":3491},"Amazon Polly, Transcribe, Comprehend та Translate","\u002Faws\u002Faudio-nlp-services","13.aws\u002F25.audio-nlp-services",{"title":3493,"path":3494,"stem":3495,"children":3496,"page":59},"Ai Development","\u002Fai-development","14.ai-development",[3497],{"title":3498,"path":3499,"stem":3500,"children":3501,"page":59},"Foundations","\u002Fai-development\u002Ffoundations","14.ai-development\u002F00.foundations",[3502],{"title":3503,"path":3504,"stem":3505},"Модуль 0.1. Що таке Large Language Model (LLM)","\u002Fai-development\u002Ffoundations\u002Fwhat-is-llm","14.ai-development\u002F00.foundations\u002F01.what-is-llm",{"title":3507,"path":3508,"stem":3509,"children":3510,"page":59},"React Native","\u002Freact-native","15.react-native",[3511,3532],{"title":3512,"path":3513,"stem":3514,"children":3515,"page":59},"Version1","\u002Freact-native\u002Fversion1","15.react-native\u002Fversion1",[3516,3520,3524,3528],{"title":3517,"path":3518,"stem":3519},"Що таке React Native","\u002Freact-native\u002Fversion1\u002Fwhat-is-react-native","15.react-native\u002Fversion1\u002F01.what-is-react-native",{"title":3521,"path":3522,"stem":3523},"Як влаштований React Native «під капотом»","\u002Freact-native\u002Fversion1\u002Freact-native-architecture","15.react-native\u002Fversion1\u002F02.react-native-architecture",{"title":3525,"path":3526,"stem":3527},"Від React до React Native: ключові відмінності","\u002Freact-native\u002Fversion1\u002Freact-native-vs-react","15.react-native\u002Fversion1\u002F03.react-native-vs-react",{"title":3529,"path":3530,"stem":3531},"View та Text — фундаментальні будівельні блоки","\u002Freact-native\u002Fversion1\u002Fview-and-text","15.react-native\u002Fversion1\u002F04.view-and-text",{"title":3533,"path":3534,"stem":3535,"children":3536,"page":59},"Version2","\u002Freact-native\u002Fversion2","15.react-native\u002Fversion2",[3537,3541,3545,3549,3553,3557,3561,3565,3569,3573,3577,3581,3585,3589,3593,3597,3601,3605,3609,3613,3617,3621,3625,3629,3633,3637,3641],{"title":3538,"path":3539,"stem":3540},"React Native — навіщо він потрібен","\u002Freact-native\u002Fversion2\u002Fwhy-react-native","15.react-native\u002Fversion2\u002F01.why-react-native",{"title":3542,"path":3543,"stem":3544},"Налаштування середовища розробки","\u002Freact-native\u002Fversion2\u002Fenvironment-setup","15.react-native\u002Fversion2\u002F02.environment-setup",{"title":3546,"path":3547,"stem":3548},"Expo і класичний React Native — два шляхи одного фреймворку","\u002Freact-native\u002Fversion2\u002Fexpo-vs-cli-landscape","15.react-native\u002Fversion2\u002F03.expo-vs-cli-landscape",{"title":3550,"path":3551,"stem":3552},"Середовище Expo — перший запуск","\u002Freact-native\u002Fversion2\u002Fexpo-setup-and-tooling","15.react-native\u002Fversion2\u002F04.expo-setup-and-tooling",{"title":3554,"path":3555,"stem":3556},"Структура проєкту та перші UI-примітиви","\u002Freact-native\u002Fversion2\u002Fproject-structure-and-conventions","15.react-native\u002Fversion2\u002F05.project-structure-and-conventions",{"title":3558,"path":3559,"stem":3560},"Базові компоненти React Native","\u002Freact-native\u002Fversion2\u002Fcore-components","15.react-native\u002Fversion2\u002F06.core-components",{"title":3562,"path":3563,"stem":3564},"Flexbox і layout у React Native","\u002Freact-native\u002Fversion2\u002Fflexbox-and-layout","15.react-native\u002Fversion2\u002F07.flexbox-and-layout",{"title":3566,"path":3567,"stem":3568},"StyleSheet і теми (light \u002F dark)","\u002Freact-native\u002Fversion2\u002Fstylesheet-and-theming","15.react-native\u002Fversion2\u002F08.stylesheet-and-theming",{"title":3570,"path":3571,"stem":3572},"Списки та віртуалізація","\u002Freact-native\u002Fversion2\u002Flists-and-virtualization","15.react-native\u002Fversion2\u002F09.lists-and-virtualization",{"title":3574,"path":3575,"stem":3576},"Форми, ввід і валідація","\u002Freact-native\u002Fversion2\u002Fforms-input-validation","15.react-native\u002Fversion2\u002F10.forms-input-validation",{"title":3578,"path":3579,"stem":3580},"Основи Expo Router","\u002Freact-native\u002Fversion2\u002Fexpo-router-basics","15.react-native\u002Fversion2\u002F11.expo-router-basics",{"title":3582,"path":3583,"stem":3584},"Вкладені навігатори та модалки","\u002Freact-native\u002Fversion2\u002Fnested-navigators-and-modals","15.react-native\u002Fversion2\u002F12.nested-navigators-and-modals",{"title":3586,"path":3587,"stem":3588},"Deep linking і параметри маршрутів","\u002Freact-native\u002Fversion2\u002Fdeep-linking-and-params","15.react-native\u002Fversion2\u002F13.deep-linking-and-params",{"title":3590,"path":3591,"stem":3592},"Робота з мережею та життєвий цикл застосунку","\u002Freact-native\u002Fversion2\u002Fnetworking-and-app-lifecycle","15.react-native\u002Fversion2\u002F14.networking-and-app-lifecycle",{"title":3594,"path":3595,"stem":3596},"Redux Toolkit на мобільних платформах","\u002Freact-native\u002Fversion2\u002Fredux-toolkit-on-mobile","15.react-native\u002Fversion2\u002F15.redux-toolkit-on-mobile",{"title":3598,"path":3599,"stem":3600},"RTK Query на мобільних платформах","\u002Freact-native\u002Fversion2\u002Frtk-query-mobile","15.react-native\u002Fversion2\u002F16.rtk-query-mobile",{"title":3602,"path":3603,"stem":3604},"Автентифікація та Безпечне Зберігання","\u002Freact-native\u002Fversion2\u002Fauth-secure-storage","15.react-native\u002Fversion2\u002F18.auth-secure-storage",{"title":3606,"path":3607,"stem":3608},"Локальне сховище — AsyncStorage, MMKV, SQLite","\u002Freact-native\u002Fversion2\u002Flocal-storage-mmkv-sqlite","15.react-native\u002Fversion2\u002F19.local-storage-mmkv-sqlite",{"title":3610,"path":3611,"stem":3612},"Офлайн-First і синхронізація","\u002Freact-native\u002Fversion2\u002Foffline-first-sync","15.react-native\u002Fversion2\u002F20.offline-first-sync",{"title":3614,"path":3615,"stem":3616},"Камера, медіа та файлова система","\u002Freact-native\u002Fversion2\u002Fcamera-media-filesystem","15.react-native\u002Fversion2\u002F21.camera-media-filesystem",{"title":3618,"path":3619,"stem":3620},"Карти та геолокація","\u002Freact-native\u002Fversion2\u002Fmaps-and-location","15.react-native\u002Fversion2\u002F22.maps-and-location",{"title":3622,"path":3623,"stem":3624},"Жести та дотики","\u002Freact-native\u002Fversion2\u002Fgestures-and-touch","15.react-native\u002Fversion2\u002F23.gestures-and-touch",{"title":3626,"path":3627,"stem":3628},"Анімації з Reanimated","\u002Freact-native\u002Fversion2\u002Freanimated-animations","15.react-native\u002Fversion2\u002F24.reanimated-animations",{"title":3630,"path":3631,"stem":3632},"Push і локальні сповіщення","\u002Freact-native\u002Fversion2\u002Fpush-and-local-notifications","15.react-native\u002Fversion2\u002F25.push-and-local-notifications",{"title":3634,"path":3635,"stem":3636},"Інтернаціоналізація та доступність","\u002Freact-native\u002Fversion2\u002Faccessibility-and-i18n","15.react-native\u002Fversion2\u002F26.accessibility-and-i18n",{"title":3638,"path":3639,"stem":3640},"EAS Build та профілі збірки","\u002Freact-native\u002Fversion2\u002Feas-build-and-profiles","15.react-native\u002Fversion2\u002F29.eas-build-and-profiles",{"title":3642,"path":3643,"stem":3644},"Публікація в App Store та Google Play","\u002Freact-native\u002Fversion2\u002Fapp-store-play-release","15.react-native\u002Fversion2\u002F30.app-store-play-release",{"title":3646,"path":3647,"stem":3648,"children":3649,"page":59},"Ai Python","\u002Fai-python","16.ai-python",[3650,3659,3668,3677,3706,3732,3757,3790,3807,3820,3829,3842,3851,3872,3885,3906],{"title":3651,"path":3652,"stem":3653,"children":3654,"page":59},"Intro To Ai","\u002Fai-python\u002Fintro-to-ai","16.ai-python\u002F01.intro-to-ai",[3655],{"title":3656,"path":3657,"stem":3658},"Вступ до штучного інтелекту та машинного навчання","\u002Fai-python\u002Fintro-to-ai\u002Fintro-to-ai","16.ai-python\u002F01.intro-to-ai\u002F01.intro-to-ai",{"title":3660,"path":3661,"stem":3662,"children":3663,"page":59},"Jupyter Notebook","\u002Fai-python\u002Fjupyter-notebook","16.ai-python\u002F02.jupyter-notebook",[3664],{"title":3665,"path":3666,"stem":3667},"Знайомство з Jupyter Notebook та JupyterLab","\u002Fai-python\u002Fjupyter-notebook\u002Fjupyter-notebook","16.ai-python\u002F02.jupyter-notebook\u002F02.jupyter-notebook",{"title":3669,"path":3670,"stem":3671,"children":3672,"page":59},"Numpy Pandas","\u002Fai-python\u002Fnumpy-pandas","16.ai-python\u002F03.numpy-pandas",[3673],{"title":3674,"path":3675,"stem":3676},"Робота з даними з використанням NumPy і pandas","\u002Fai-python\u002Fnumpy-pandas\u002Fnumpy-pandas","16.ai-python\u002F03.numpy-pandas\u002F03.numpy-pandas",{"title":3678,"path":3679,"stem":3680,"children":3681,"page":59},"Statistics Basics","\u002Fai-python\u002Fstatistics-basics","16.ai-python\u002F04.statistics-basics",[3682,3686,3690,3694,3698,3702],{"title":3683,"path":3684,"stem":3685},"Випадкові величини та їх типи","\u002Fai-python\u002Fstatistics-basics\u002Frandom-variables","16.ai-python\u002F04.statistics-basics\u002F01.random-variables",{"title":3687,"path":3688,"stem":3689},"Міри центральної тенденції","\u002Fai-python\u002Fstatistics-basics\u002Fcentral-tendency","16.ai-python\u002F04.statistics-basics\u002F02.central-tendency",{"title":3691,"path":3692,"stem":3693},"Міри варіації (розсіювання)","\u002Fai-python\u002Fstatistics-basics\u002Fvariability","16.ai-python\u002F04.statistics-basics\u002F03.variability",{"title":3695,"path":3696,"stem":3697},"Розподіли випадкових величин","\u002Fai-python\u002Fstatistics-basics\u002Fdistributions","16.ai-python\u002F04.statistics-basics\u002F04.distributions",{"title":3699,"path":3700,"stem":3701},"Кореляція та взаємозв'язки","\u002Fai-python\u002Fstatistics-basics\u002Fcorrelation","16.ai-python\u002F04.statistics-basics\u002F05.correlation",{"title":3703,"path":3704,"stem":3705},"Викиди та аномалії","\u002Fai-python\u002Fstatistics-basics\u002Foutliers","16.ai-python\u002F04.statistics-basics\u002F06.outliers",{"title":3707,"path":3708,"stem":3709,"children":3710},"Візуалізація даних за допомогою matplotlib","\u002Fai-python\u002Fdata-visualization","16.ai-python\u002F05.data-visualization\u002Findex",[3711,3712,3716,3720,3724,3728],{"title":3707,"path":3708,"stem":3709},{"title":3713,"path":3714,"stem":3715},"Основи matplotlib — Figure, Axes та перший графік","\u002Fai-python\u002Fdata-visualization\u002Fmatplotlib-basics","16.ai-python\u002F05.data-visualization\u002F01.matplotlib-basics",{"title":3717,"path":3718,"stem":3719},"Візуалізація розподілів — гістограми та box plots","\u002Fai-python\u002Fdata-visualization\u002Fdistributions","16.ai-python\u002F05.data-visualization\u002F02.distributions",{"title":3721,"path":3722,"stem":3723},"Візуалізація залежностей — scatter plots та кореляція","\u002Fai-python\u002Fdata-visualization\u002Frelationships","16.ai-python\u002F05.data-visualization\u002F03.relationships",{"title":3725,"path":3726,"stem":3727},"Візуалізація категоріальних даних — bar charts та pie charts","\u002Fai-python\u002Fdata-visualization\u002Fcategorical","16.ai-python\u002F05.data-visualization\u002F04.categorical",{"title":3729,"path":3730,"stem":3731},"Композиції та стилізація — subplots та багатопанельні дашборди","\u002Fai-python\u002Fdata-visualization\u002Fsubplots-styling","16.ai-python\u002F05.data-visualization\u002F05.subplots-styling",{"title":3733,"path":3734,"stem":3735,"children":3736,"page":59},"Linear Regression","\u002Fai-python\u002Flinear-regression","16.ai-python\u002F06.linear-regression",[3737,3741,3745,3749,3753],{"title":3738,"path":3739,"stem":3740},"Регресійна задача та лінійна регресія з однією змінною","\u002Fai-python\u002Flinear-regression\u002Fregression-task","16.ai-python\u002F06.linear-regression\u002F01.regression-task",{"title":3742,"path":3743,"stem":3744},"Метрики якості регресії — як оцінити модель","\u002Fai-python\u002Flinear-regression\u002Fquality-metrics","16.ai-python\u002F06.linear-regression\u002F02.quality-metrics",{"title":3746,"path":3747,"stem":3748},"Градієнтний спуск — як модель навчається","\u002Fai-python\u002Flinear-regression\u002Fgradient-descent","16.ai-python\u002F06.linear-regression\u002F03.gradient-descent",{"title":3750,"path":3751,"stem":3752},"Множинна лінійна регресія — модель з багатьма ознаками","\u002Fai-python\u002Flinear-regression\u002Fmultiple-regression","16.ai-python\u002F06.linear-regression\u002F04.multiple-regression",{"title":3754,"path":3755,"stem":3756},"Практичні завдання та резюме модуля","\u002Fai-python\u002Flinear-regression\u002Fpractice","16.ai-python\u002F06.linear-regression\u002F05.practice",{"title":3758,"path":3759,"stem":3760,"children":3761,"page":59},"Practical Regression","\u002Fai-python\u002Fpractical-regression","16.ai-python\u002F07.practical-regression",[3762,3766,3770,3774,3778,3782,3786],{"title":3763,"path":3764,"stem":3765},"Знайомство з scikit-learn","\u002Fai-python\u002Fpractical-regression\u002Fintro-scikit-learn","16.ai-python\u002F07.practical-regression\u002F01.intro-scikit-learn",{"title":3767,"path":3768,"stem":3769},"Exploratory Data Analysis датасету Housing Prices","\u002Fai-python\u002Fpractical-regression\u002Fhousing-dataset-eda","16.ai-python\u002F07.practical-regression\u002F02.housing-dataset-eda",{"title":3771,"path":3772,"stem":3773},"Попередня обробка даних (Data Preprocessing)","\u002Fai-python\u002Fpractical-regression\u002Fdata-preprocessing","16.ai-python\u002F07.practical-regression\u002F03.data-preprocessing",{"title":3775,"path":3776,"stem":3777},"Train\u002FTest Split та перша повноцінна модель","\u002Fai-python\u002Fpractical-regression\u002Ftrain-test-split","16.ai-python\u002F07.practical-regression\u002F04.train-test-split",{"title":3779,"path":3780,"stem":3781},"Перенавчання та недонавчання","\u002Fai-python\u002Fpractical-regression\u002Foverfitting-underfitting","16.ai-python\u002F07.practical-regression\u002F05.overfitting-underfitting",{"title":3783,"path":3784,"stem":3785},"Крос-валідація (Cross-Validation)","\u002Fai-python\u002Fpractical-regression\u002Fcross-validation","16.ai-python\u002F07.practical-regression\u002F06.cross-validation",{"title":3787,"path":3788,"stem":3789},"Гіперпараметри та їх оптимізація","\u002Fai-python\u002Fpractical-regression\u002Fhyperparameter-tuning","16.ai-python\u002F07.practical-regression\u002F07.hyperparameter-tuning",{"title":3791,"path":3792,"stem":3793,"children":3794,"page":59},"Polynomial Regression","\u002Fai-python\u002Fpolynomial-regression","16.ai-python\u002F08.polynomial-regression",[3795,3799,3803],{"title":3796,"path":3797,"stem":3798},"Нелінійні залежності та поліноміальна регресія","\u002Fai-python\u002Fpolynomial-regression\u002Fnonlinear-patterns","16.ai-python\u002F08.polynomial-regression\u002F01.nonlinear-patterns",{"title":3800,"path":3801,"stem":3802},"Регуляризація в регресії — Ridge та Lasso","\u002Fai-python\u002Fpolynomial-regression\u002Fregularization-methods","16.ai-python\u002F08.polynomial-regression\u002F02.regularization-methods",{"title":3804,"path":3805,"stem":3806},"Практика — поліноміальна регресія та регуляризація на Housing Prices","\u002Fai-python\u002Fpolynomial-regression\u002Fhousing-prices-practice","16.ai-python\u002F08.polynomial-regression\u002F03.housing-prices-practice",{"title":3808,"path":3809,"stem":3810,"children":3811,"page":59},"Decision Trees Random Forest","\u002Fai-python\u002Fdecision-trees-random-forest","16.ai-python\u002F09.decision-trees-random-forest",[3812,3816],{"title":3813,"path":3814,"stem":3815},"Дерева рішень — інтерпретабельні моделі машинного навчання","\u002Fai-python\u002Fdecision-trees-random-forest\u002Fdecision-trees","16.ai-python\u002F09.decision-trees-random-forest\u002F01.decision-trees",{"title":3817,"path":3818,"stem":3819},"Random Forest — ансамблі дерев рішень","\u002Fai-python\u002Fdecision-trees-random-forest\u002Frandom-forest","16.ai-python\u002F09.decision-trees-random-forest\u002F02.random-forest",{"title":3821,"path":3822,"stem":3823,"children":3824,"page":59},"Gradient Boosting","\u002Fai-python\u002Fgradient-boosting","16.ai-python\u002F10.gradient-boosting",[3825],{"title":3826,"path":3827,"stem":3828},"Градієнтний бустинг та XGBoost — послідовне виправлення помилок","\u002Fai-python\u002Fgradient-boosting\u002Fgradient-boosting-xgboost","16.ai-python\u002F10.gradient-boosting\u002F01.gradient-boosting-xgboost",{"title":3830,"path":3831,"stem":3832,"children":3833,"page":59},"Logistic Regression Classification","\u002Fai-python\u002Flogistic-regression-classification","16.ai-python\u002F11.logistic-regression-classification",[3834,3838],{"title":3835,"path":3836,"stem":3837},"Вступ до класифікації та логістична регресія","\u002Fai-python\u002Flogistic-regression-classification\u002Fclassification-basics","16.ai-python\u002F11.logistic-regression-classification\u002F01.classification-basics",{"title":3839,"path":3840,"stem":3841},"Метрики якості класифікації — Confusion Matrix, Precision, Recall, F1","\u002Fai-python\u002Flogistic-regression-classification\u002Fclassification-metrics","16.ai-python\u002F11.logistic-regression-classification\u002F02.classification-metrics",{"title":3843,"path":3844,"stem":3845,"children":3846,"page":59},"Neural Networks Basics","\u002Fai-python\u002Fneural-networks-basics","16.ai-python\u002F12.neural-networks-basics",[3847],{"title":3848,"path":3849,"stem":3850},"Вступ до нейронних мереж — від персептрона до багатошарових мереж","\u002Fai-python\u002Fneural-networks-basics\u002Fperceptron-to-mlp","16.ai-python\u002F12.neural-networks-basics\u002F01.perceptron-to-mlp",{"title":3852,"path":3853,"stem":3854,"children":3855,"page":59},"Pytorch Intro","\u002Fai-python\u002Fpytorch-intro","16.ai-python\u002F13.pytorch-intro",[3856,3860,3864,3868],{"title":3857,"path":3858,"stem":3859},"Тензори та автоматичне диференціювання в PyTorch","\u002Fai-python\u002Fpytorch-intro\u002Ftensors-and-autograd","16.ai-python\u002F13.pytorch-intro\u002F01.tensors-and-autograd",{"title":3861,"path":3862,"stem":3863},"Побудова та тренування нейронних мереж у PyTorch","\u002Fai-python\u002Fpytorch-intro\u002Fbuilding-and-training","16.ai-python\u002F13.pytorch-intro\u002F02.building-and-training",{"title":3865,"path":3866,"stem":3867},"Робота з даними та регуляризація в PyTorch","\u002Fai-python\u002Fpytorch-intro\u002Fdata-and-regularization","16.ai-python\u002F13.pytorch-intro\u002F03.data-and-regularization",{"title":3869,"path":3870,"stem":3871},"Просунуті теми PyTorch — GPU, оптимізація та deployment","\u002Fai-python\u002Fpytorch-intro\u002Fadvanced-topics","16.ai-python\u002F13.pytorch-intro\u002F04.advanced-topics",{"title":3873,"path":3874,"stem":3875,"children":3876,"page":59},"Activation Functions Heart Disease","\u002Fai-python\u002Factivation-functions-heart-disease","16.ai-python\u002F14.activation-functions-heart-disease",[3877,3881],{"title":3878,"path":3879,"stem":3880},"Функції активації та побудова нейронної мережі для передбачення вад серця","\u002Fai-python\u002Factivation-functions-heart-disease\u002Fheart-disease-prediction","16.ai-python\u002F14.activation-functions-heart-disease\u002F01.heart-disease-prediction",{"title":3882,"path":3883,"stem":3884},"Бонус — Повний приклад Student Performance Prediction","\u002Fai-python\u002Factivation-functions-heart-disease\u002Fstudent-performance-bonus","16.ai-python\u002F14.activation-functions-heart-disease\u002F02.student-performance-bonus",{"title":3886,"path":3887,"stem":3888,"children":3889,"page":59},"Cnn Image Classification","\u002Fai-python\u002Fcnn-image-classification","16.ai-python\u002F15.cnn-image-classification",[3890,3894,3898,3902],{"title":3891,"path":3892,"stem":3893},"Основи згорткових нейронних мереж — чому не MLP?","\u002Fai-python\u002Fcnn-image-classification\u002Fcnn-fundamentals","16.ai-python\u002F15.cnn-image-classification\u002F01.cnn-fundamentals",{"title":3895,"path":3896,"stem":3897},"Практична імплементація CNN для класифікації MNIST","\u002Fai-python\u002Fcnn-image-classification\u002Fmnist-classification","16.ai-python\u002F15.cnn-image-classification\u002F02.mnist-classification",{"title":3899,"path":3900,"stem":3901},"Глибші CNN та аугментація даних для CIFAR-10","\u002Fai-python\u002Fcnn-image-classification\u002Fcifar10-and-data-augmentation","16.ai-python\u002F15.cnn-image-classification\u002F03.cifar10-and-data-augmentation",{"title":3903,"path":3904,"stem":3905},"Transfer Learning та візуалізація внутрішніх представлень CNN","\u002Fai-python\u002Fcnn-image-classification\u002Ftransfer-learning-and-visualization","16.ai-python\u002F15.cnn-image-classification\u002F04.transfer-learning-and-visualization",{"title":3907,"path":3908,"stem":3909,"children":3910,"page":59},"Batching Normalization Deep Networks","\u002Fai-python\u002Fbatching-normalization-deep-networks","16.ai-python\u002F16.batching-normalization-deep-networks",[3911,3915,3919,3923,3927,3931,3935],{"title":3912,"path":3913,"stem":3914},"Mini-batch Gradient Descent та ефективна обробка даних","\u002Fai-python\u002Fbatching-normalization-deep-networks\u002Fmini-batch-gradient-descent","16.ai-python\u002F16.batching-normalization-deep-networks\u002F01.mini-batch-gradient-descent",{"title":3916,"path":3917,"stem":3918},"Ініціалізація ваг — фундамент стабільного навчання","\u002Fai-python\u002Fbatching-normalization-deep-networks\u002Fweight-initialization","16.ai-python\u002F16.batching-normalization-deep-networks\u002F02.weight-initialization",{"title":3920,"path":3921,"stem":3922},"Batch Normalization — прорив у глибокому навчанні","\u002Fai-python\u002Fbatching-normalization-deep-networks\u002Fbatch-normalization","16.ai-python\u002F16.batching-normalization-deep-networks\u002F03.batch-normalization",{"title":3924,"path":3925,"stem":3926},"Dropout та комбіновані стратегії регуляризації","\u002Fai-python\u002Fbatching-normalization-deep-networks\u002Fdropout-and-regularization","16.ai-python\u002F16.batching-normalization-deep-networks\u002F04.dropout-and-regularization",{"title":3928,"path":3929,"stem":3930},"Проєктування глибоких мереж — від теорії до практики","\u002Fai-python\u002Fbatching-normalization-deep-networks\u002Fdeep-networks-architectures","16.ai-python\u002F16.batching-normalization-deep-networks\u002F05.deep-networks-architectures",{"title":3932,"path":3933,"stem":3934},"Планування learning rate — коли та як зменшувати крок навчання","\u002Fai-python\u002Fbatching-normalization-deep-networks\u002Flearning-rate-scheduling","16.ai-python\u002F16.batching-normalization-deep-networks\u002F06.learning-rate-scheduling",{"title":3936,"path":3937,"stem":3938},"Підсумковий проєкт — побудова сучасного класифікатора зображень","\u002Fai-python\u002Fbatching-normalization-deep-networks\u002Ffinal-project-deep-classifier","16.ai-python\u002F16.batching-normalization-deep-networks\u002F07.final-project-deep-classifier",{"title":3940,"icon":658,"path":3941,"stem":3942,"children":3943,"page":59},"Клієнт-серверна архітектура","\u002Fclient-server-architecture","17.client-server-architecture",[3944,3948,3952,3956,3960,3964,3968,3972,3976,3980,3984,3988,3992,3996,4000,4004,4008,4012],{"title":3945,"path":3946,"stem":3947},"Архітектура клієнт-серверних систем та основи Go","\u002Fclient-server-architecture\u002Fclient-server-architecture-and-go","17.client-server-architecture\u002F01.client-server-architecture-and-go",{"title":3949,"path":3950,"stem":3951},"Система типів та модель пам’яті мови Go","\u002Fclient-server-architecture\u002Ftype-system-and-memory-model","17.client-server-architecture\u002F02.type-system-and-memory-model",{"title":3953,"path":3954,"stem":3955},"Інтерфейси та модель конкурентності мови Go","\u002Fclient-server-architecture\u002Finterfaces-and-concurrency-model","17.client-server-architecture\u002F03.interfaces-and-concurrency-model",{"title":3957,"path":3958,"stem":3959},"Сокетне програмування та протокол TCP у Go","\u002Fclient-server-architecture\u002Ftcp-socket-programming","17.client-server-architecture\u002F04.tcp-socket-programming",{"title":3961,"path":3962,"stem":3963},"Протокол UDP та датаграмна передача даних","\u002Fclient-server-architecture\u002Fudp-datagram-transmission","17.client-server-architecture\u002F05.udp-datagram-transmission",{"title":3965,"path":3966,"stem":3967},"Криптографічний захист каналів зв","\u002Fclient-server-architecture\u002Ftls-cryptographic-channel-protection","17.client-server-architecture\u002F06.tls-cryptographic-channel-protection",{"title":3969,"path":3970,"stem":3971},"Прикладні мережеві протоколи DNS та SMTP","\u002Fclient-server-architecture\u002Fdns-smtp-application-protocols","17.client-server-architecture\u002F07.dns-smtp-application-protocols",{"title":3973,"path":3974,"stem":3975},"Протокол HTTP та стандартний вебсервер Go","\u002Fclient-server-architecture\u002Fhttp-protocol-and-web-server","17.client-server-architecture\u002F08.http-protocol-and-web-server",{"title":3977,"path":3978,"stem":3979},"Проєктування REST API та маршрутизація засобами Chi","\u002Fclient-server-architecture\u002Frest-api-design-and-chi-routing","17.client-server-architecture\u002F09.rest-api-design-and-chi-routing",{"title":3981,"path":3982,"stem":3983},"Лекція 10. Шарувата архітектура та конвеєри обробки запитів","\u002Fclient-server-architecture\u002Flayered-architecture-and-middleware-pipelines","17.client-server-architecture\u002F10.layered-architecture-and-middleware-pipelines",{"title":3985,"path":3986,"stem":3987},"Лекція 11. Архітектура та маршрутизація фреймворку Gin","\u002Fclient-server-architecture\u002Fgin-framework-architecture-and-routing","17.client-server-architecture\u002F11.gin-framework-architecture-and-routing",{"title":3989,"path":3990,"stem":3991},"Лекція 12. Валідація даних, безпека та документування у Gin","\u002Fclient-server-architecture\u002Fdata-validation-security-and-documentation-in-gin","17.client-server-architecture\u002F12.data-validation-security-and-documentation-in-gin",{"title":3993,"path":3994,"stem":3995},"Лекція 13. Взаємодія з реляційними СУБД та технології ORM","\u002Fclient-server-architecture\u002Frelational-databases-and-orm","17.client-server-architecture\u002F13.relational-databases-and-orm",{"title":3997,"path":3998,"stem":3999},"Потокова передача даних та протокол WebSocket","\u002Fclient-server-architecture\u002Fstreaming-data-and-websockets","17.client-server-architecture\u002F14.streaming-data-and-websockets",{"title":4001,"path":4002,"stem":4003},"Міжсервісна взаємодія на основі протоколу gRPC","\u002Fclient-server-architecture\u002Fgrpc-inter-service-communication","17.client-server-architecture\u002F15.grpc-inter-service-communication",{"title":4005,"path":4006,"stem":4007},"Асинхронний обмін повідомленнями та протоколи черг","\u002Fclient-server-architecture\u002Fasynchronous-message-exchange-and-queue-protocols","17.client-server-architecture\u002F16.asynchronous-message-exchange-and-queue-protocols",{"title":4009,"path":4010,"stem":4011},"Протоколи потокового медіа та технологія WebRTC","\u002Fclient-server-architecture\u002Fstreaming-media-protocols-and-webrtc","17.client-server-architecture\u002F17.streaming-media-protocols-and-webrtc",{"title":4013,"path":4014,"stem":4015},"Моніторинг, безпека та контейнеризація застосунків","\u002Fclient-server-architecture\u002Fmonitoring-security-and-containerization","17.client-server-architecture\u002F18.monitoring-security-and-containerization",{"title":4017,"icon":2074,"path":4018,"stem":4019,"children":4020,"page":59},"Розробка WEB-застосувань","\u002Fweb-development","18.web-development",[4021,4066,4104,4133,4162,4219,4269,4363,4429,4511,4544,4572,4614,4660,4703],{"title":4022,"icon":658,"path":4023,"stem":4024,"children":4025,"page":59},"Архітектура комп'ютерних мереж та мережеві протоколи","\u002Fweb-development\u002Fnetwork-architecture-and-protocols","18.web-development\u002F01.network-architecture-and-protocols",[4026,4030,4034,4038,4042,4046,4050,4054,4058,4062],{"title":4027,"path":4028,"stem":4029},"Еволюція веброзробки та модель клієнт-сервер","\u002Fweb-development\u002Fnetwork-architecture-and-protocols\u002Fweb-evolution-client-server","18.web-development\u002F01.network-architecture-and-protocols\u002F01.web-evolution-client-server",{"title":4031,"path":4032,"stem":4033},"Еталонна модель OSI","\u002Fweb-development\u002Fnetwork-architecture-and-protocols\u002Fosi-model","18.web-development\u002F01.network-architecture-and-protocols\u002F02.osi-model",{"title":4035,"path":4036,"stem":4037},"Стек протоколів TCP\u002FIP","\u002Fweb-development\u002Fnetwork-architecture-and-protocols\u002Ftcp-ip-stack","18.web-development\u002F01.network-architecture-and-protocols\u002F03.tcp-ip-stack",{"title":4039,"path":4040,"stem":4041},"IP-адресація, порти та сокети","\u002Fweb-development\u002Fnetwork-architecture-and-protocols\u002Fip-addressing-ports-sockets","18.web-development\u002F01.network-architecture-and-protocols\u002F04.ip-addressing-ports-sockets",{"title":4043,"path":4044,"stem":4045},"Протоколи TCP та UDP","\u002Fweb-development\u002Fnetwork-architecture-and-protocols\u002Ftcp-udp-protocols","18.web-development\u002F01.network-architecture-and-protocols\u002F05.tcp-udp-protocols",{"title":4047,"path":4048,"stem":4049},"Система доменних імен DNS","\u002Fweb-development\u002Fnetwork-architecture-and-protocols\u002Fdns-system","18.web-development\u002F01.network-architecture-and-protocols\u002F06.dns-system",{"title":4051,"path":4052,"stem":4053},"Протокол SMTP та поштові протоколи","\u002Fweb-development\u002Fnetwork-architecture-and-protocols\u002Fsmtp-email-protocols","18.web-development\u002F01.network-architecture-and-protocols\u002F07.smtp-email-protocols",{"title":4055,"path":4056,"stem":4057},"Протокол WebSocket","\u002Fweb-development\u002Fnetwork-architecture-and-protocols\u002Fwebsocket-protocol","18.web-development\u002F01.network-architecture-and-protocols\u002F08.websocket-protocol",{"title":4059,"path":4060,"stem":4061},"Протокол SSH","\u002Fweb-development\u002Fnetwork-architecture-and-protocols\u002Fssh-protocol","18.web-development\u002F01.network-architecture-and-protocols\u002F09.ssh-protocol",{"title":4063,"path":4064,"stem":4065},"Огляд сучасних серверних технологій","\u002Fweb-development\u002Fnetwork-architecture-and-protocols\u002Fmodern-backend-technologies","18.web-development\u002F01.network-architecture-and-protocols\u002F10.modern-backend-technologies",{"title":4067,"icon":4068,"path":4069,"stem":4070,"children":4071,"page":59},"Протокол HTTP та захищена передача даних HTTPS","i-lucide-lock","\u002Fweb-development\u002Fhttp-and-https","18.web-development\u002F02.http-and-https",[4072,4076,4080,4084,4088,4092,4096,4100],{"title":4073,"path":4074,"stem":4075},"Вступ до протоколу HTTP та еволюція веб-технологій","\u002Fweb-development\u002Fhttp-and-https\u002Fintroduction-and-evolution","18.web-development\u002F02.http-and-https\u002F01.introduction-and-evolution",{"title":4077,"path":4078,"stem":4079},"Анатомія HTTP-запиту","\u002Fweb-development\u002Fhttp-and-https\u002Fhttp-request-structure","18.web-development\u002F02.http-and-https\u002F02.http-request-structure",{"title":4081,"path":4082,"stem":4083},"Анатомія HTTP-відповіді","\u002Fweb-development\u002Fhttp-and-https\u002Fhttp-response-structure","18.web-development\u002F02.http-and-https\u002F03.http-response-structure",{"title":4085,"path":4086,"stem":4087},"Методи HTTP та їхня семантика","\u002Fweb-development\u002Fhttp-and-https\u002Fhttp-methods","18.web-development\u002F02.http-and-https\u002F04.http-methods",{"title":4089,"path":4090,"stem":4091},"Коди статусу HTTP та їхнє призначення","\u002Fweb-development\u002Fhttp-and-https\u002Fhttp-status-codes","18.web-development\u002F02.http-and-https\u002F05.http-status-codes",{"title":4093,"path":4094,"stem":4095},"HTTP-заголовки та їхнє призначення","\u002Fweb-development\u002Fhttp-and-https\u002Fhttp-headers","18.web-development\u002F02.http-and-https\u002F06.http-headers",{"title":4097,"path":4098,"stem":4099},"CORS та механізми безпеки HTTP","\u002Fweb-development\u002Fhttp-and-https\u002Fcors-and-security","18.web-development\u002F02.http-and-https\u002F07.cors-and-security",{"title":4101,"path":4102,"stem":4103},"HTTPS та криптографічні основи TLS","\u002Fweb-development\u002Fhttp-and-https\u002Fhttps-and-tls","18.web-development\u002F02.http-and-https\u002F08.https-and-tls",{"title":4105,"icon":2454,"path":4106,"stem":4107,"children":4108,"page":59},"Система типів мови TypeScript","\u002Fweb-development\u002Ftypescript-type-system","18.web-development\u002F03.typescript-type-system",[4109,4113,4117,4121,4125,4129],{"title":4110,"path":4111,"stem":4112},"Знайомство з TypeScript Compiler","\u002Fweb-development\u002Ftypescript-type-system\u002Fintroduction-compiler-config","18.web-development\u002F03.typescript-type-system\u002F01.introduction-compiler-config",{"title":4114,"path":4115,"stem":4116},"Примітивні типи даних: string, number, boolean","\u002Fweb-development\u002Ftypescript-type-system\u002Fprimitive-special-types","18.web-development\u002F03.typescript-type-system\u002F02.primitive-special-types",{"title":4118,"path":4119,"stem":4120},"Масиви, кортежі та об","\u002Fweb-development\u002Ftypescript-type-system\u002Farrays-tuples-objects","18.web-development\u002F03.typescript-type-system\u002F03.arrays-tuples-objects",{"title":4122,"path":4123,"stem":4124},"Псевдоніми типів, Union типи, Intersection типи та літеральні типи","\u002Fweb-development\u002Ftypescript-type-system\u002Funion-intersection-literals","18.web-development\u002F03.typescript-type-system\u002F04.union-intersection-literals",{"title":4126,"path":4127,"stem":4128},"Type Narrowing (звуження типів)","\u002Fweb-development\u002Ftypescript-type-system\u002Ftype-narrowing","18.web-development\u002F03.typescript-type-system\u002F05.type-narrowing",{"title":4130,"path":4131,"stem":4132},"Типізація функцій","\u002Fweb-development\u002Ftypescript-type-system\u002Ffunctions-typing","18.web-development\u002F03.typescript-type-system\u002F06.functions-typing",{"title":4134,"icon":2454,"path":4135,"stem":4136,"children":4137,"page":59},"Розширені засоби мови TypeScript","\u002Fweb-development\u002Ftypescript-advanced","18.web-development\u002F04.typescript-advanced",[4138,4142,4146,4150,4154,4158],{"title":4139,"path":4140,"stem":4141},"Interfaces та Classes","\u002Fweb-development\u002Ftypescript-advanced\u002Finterfaces-classes","18.web-development\u002F04.typescript-advanced\u002F01.interfaces-classes",{"title":4143,"path":4144,"stem":4145},"Основи Generic типів","\u002Fweb-development\u002Ftypescript-advanced\u002Fgenerics-fundamentals","18.web-development\u002F04.typescript-advanced\u002F02.generics-fundamentals",{"title":4147,"path":4148,"stem":4149},"Enums та Decorators","\u002Fweb-development\u002Ftypescript-advanced\u002Fenums-decorators","18.web-development\u002F04.typescript-advanced\u002F03.enums-decorators",{"title":4151,"path":4152,"stem":4153},"Utility Types","\u002Fweb-development\u002Ftypescript-advanced\u002Futility-types","18.web-development\u002F04.typescript-advanced\u002F04.utility-types",{"title":4155,"path":4156,"stem":4157},"Mapped та Conditional Types","\u002Fweb-development\u002Ftypescript-advanced\u002Fmapped-conditional-types","18.web-development\u002F04.typescript-advanced\u002F05.mapped-conditional-types",{"title":4159,"path":4160,"stem":4161},"Модулі та Strict Mode","\u002Fweb-development\u002Ftypescript-advanced\u002Fmodules-strict-mode","18.web-development\u002F04.typescript-advanced\u002F06.modules-strict-mode",{"title":4163,"icon":4164,"path":4165,"stem":4166,"children":4167,"page":59},"Платформа Node.js як середовище виконання","i-devicon-nodejs","\u002Fweb-development\u002Fnodejs-platform","18.web-development\u002F05.nodejs-platform",[4168,4172,4176,4180,4184,4188,4192,4196,4200,4204,4208,4211,4215],{"title":4169,"path":4170,"stem":4171},"Що таке Node.js та його архітектура","\u002Fweb-development\u002Fnodejs-platform\u002Fwhat-is-nodejs","18.web-development\u002F05.nodejs-platform\u002F01.what-is-nodejs",{"title":4173,"path":4174,"stem":4175},"Event Loop — серце Node.js","\u002Fweb-development\u002Fnodejs-platform\u002Fevent-loop","18.web-development\u002F05.nodejs-platform\u002F02.event-loop",{"title":4177,"path":4178,"stem":4179},"Модульні системи: CommonJS vs ES Modules","\u002Fweb-development\u002Fnodejs-platform\u002Fmodule-systems","18.web-development\u002F05.nodejs-platform\u002F03.module-systems",{"title":4181,"path":4182,"stem":4183},"npm та package.json","\u002Fweb-development\u002Fnodejs-platform\u002Fnpm-package-json","18.web-development\u002F05.nodejs-platform\u002F04.npm-package-json",{"title":4185,"path":4186,"stem":4187},"Глобальні об\\","\u002Fweb-development\u002Fnodejs-platform\u002Fglobal-objects","18.web-development\u002F05.nodejs-platform\u002F05.global-objects",{"title":4189,"path":4190,"stem":4191},"Вбудований модуль fs (File System)","\u002Fweb-development\u002Fnodejs-platform\u002Fbuilt-in-modules-fs","18.web-development\u002F05.nodejs-platform\u002F06.built-in-modules-fs",{"title":4193,"path":4194,"stem":4195},"Вбудований модуль path","\u002Fweb-development\u002Fnodejs-platform\u002Fbuilt-in-modules-path","18.web-development\u002F05.nodejs-platform\u002F07.built-in-modules-path",{"title":4197,"path":4198,"stem":4199},"Вбудований модуль http","\u002Fweb-development\u002Fnodejs-platform\u002Fbuilt-in-modules-http","18.web-development\u002F05.nodejs-platform\u002F08.built-in-modules-http",{"title":4201,"path":4202,"stem":4203},"Streams — потоки даних у Node.js","\u002Fweb-development\u002Fnodejs-platform\u002Fstreams","18.web-development\u002F05.nodejs-platform\u002F09.streams",{"title":4205,"path":4206,"stem":4207},"Вбудований модуль util (Utilities)","\u002Fweb-development\u002Fnodejs-platform\u002Fbuilt-in-modules-util","18.web-development\u002F05.nodejs-platform\u002F10.built-in-modules-util",{"title":3097,"path":4209,"stem":4210},"\u002Fweb-development\u002Fnodejs-platform\u002Fenvironment-variables","18.web-development\u002F05.nodejs-platform\u002F11.environment-variables",{"title":4212,"path":4213,"stem":4214},"Інструменти налагодження та розробки","\u002Fweb-development\u002Fnodejs-platform\u002Fdebugging-tools","18.web-development\u002F05.nodejs-platform\u002F12.debugging-tools",{"title":4216,"path":4217,"stem":4218},"Продуктивність та Best Practices","\u002Fweb-development\u002Fnodejs-platform\u002Fperformance-best-practices","18.web-development\u002F05.nodejs-platform\u002F13.performance-best-practices",{"title":4220,"icon":4221,"path":4222,"stem":4223,"children":4224,"page":59},"Асинхронне програмування у Node.js","i-lucide-clock","\u002Fweb-development\u002Fasync-programming-nodejs","18.web-development\u002F06.async-programming-nodejs",[4225,4229,4233,4237,4241,4245,4249,4253,4257,4261,4265],{"title":4226,"path":4227,"stem":4228},"Синхронний vs асинхронний код","\u002Fweb-development\u002Fasync-programming-nodejs\u002Fsync-vs-async","18.web-development\u002F06.async-programming-nodejs\u002F01.sync-vs-async",{"title":4230,"path":4231,"stem":4232},"Callbacks — перша парадигма асинхронності","\u002Fweb-development\u002Fasync-programming-nodejs\u002Fcallbacks","18.web-development\u002F06.async-programming-nodejs\u002F02.callbacks",{"title":4234,"path":4235,"stem":4236},"Promises — стандарт асинхронності","\u002Fweb-development\u002Fasync-programming-nodejs\u002Fpromises","18.web-development\u002F06.async-programming-nodejs\u002F03.promises",{"title":4238,"path":4239,"stem":4240},"Promise комбінатори","\u002Fweb-development\u002Fasync-programming-nodejs\u002Fpromise-combinators","18.web-development\u002F06.async-programming-nodejs\u002F04.promise-combinators",{"title":4242,"path":4243,"stem":4244},"Async\u002FAwait — синтаксичний цукор над Promises","\u002Fweb-development\u002Fasync-programming-nodejs\u002Fasync-await","18.web-development\u002F06.async-programming-nodejs\u002F05.async-await",{"title":4246,"path":4247,"stem":4248},"Паралельне vs послідовне виконання","\u002Fweb-development\u002Fasync-programming-nodejs\u002Fparallel-vs-sequential","18.web-development\u002F06.async-programming-nodejs\u002F06.parallel-vs-sequential",{"title":4250,"path":4251,"stem":4252},"EventEmitter — подієва модель Node.js","\u002Fweb-development\u002Fasync-programming-nodejs\u002Fevent-emitter","18.web-development\u002F06.async-programming-nodejs\u002F07.event-emitter",{"title":4254,"path":4255,"stem":4256},"Worker Threads — багатопотоковість у Node.js","\u002Fweb-development\u002Fasync-programming-nodejs\u002Fworker-threads","18.web-development\u002F06.async-programming-nodejs\u002F08.worker-threads",{"title":4258,"path":4259,"stem":4260},"Child Processes — запуск зовнішніх процесів","\u002Fweb-development\u002Fasync-programming-nodejs\u002Fchild-processes","18.web-development\u002F06.async-programming-nodejs\u002F09.child-processes",{"title":4262,"path":4263,"stem":4264},"Обробка помилок у асинхронному коді","\u002Fweb-development\u002Fasync-programming-nodejs\u002Ferror-handling","18.web-development\u002F06.async-programming-nodejs\u002F10.error-handling",{"title":4266,"path":4267,"stem":4268},"Порівняння Node.js фреймворків","\u002Fweb-development\u002Fasync-programming-nodejs\u002Fnodejs-frameworks","18.web-development\u002F06.async-programming-nodejs\u002F11.nodejs-frameworks",{"title":4270,"icon":4271,"path":4272,"stem":4273,"children":4274,"page":59},"Тема 7. Фреймворк NestJS. Контролери та маршрутизація","i-lucide-route","\u002Fweb-development\u002Fnestjs-controllers-routing","18.web-development\u002F07.nestjs-controllers-routing",[4275,4279,4283,4287,4291,4295,4299,4303,4307,4311,4315,4319,4323,4327,4331,4335,4339,4343,4347,4351,4355,4359],{"title":4276,"path":4277,"stem":4278},"Філософія та архітектура NestJS","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fnestjs-philosophy","18.web-development\u002F07.nestjs-controllers-routing\u002F01.nestjs-philosophy",{"title":4280,"path":4281,"stem":4282},"Три стовпи архітектури: модулі, контролери, провайдери","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fthree-pillars","18.web-development\u002F07.nestjs-controllers-routing\u002F02.three-pillars",{"title":4284,"path":4285,"stem":4286},"Інверсія керування (IoC) та ін","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fioc-and-di","18.web-development\u002F07.nestjs-controllers-routing\u002F03.ioc-and-di",{"title":4288,"path":4289,"stem":4290},"Встановлення NestJS CLI та створення проєкту","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fnestjs-cli-setup","18.web-development\u002F07.nestjs-controllers-routing\u002F04.nestjs-cli-setup",{"title":4292,"path":4293,"stem":4294},"Структура проєкту NestJS та конвенції","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fproject-structure","18.web-development\u002F07.nestjs-controllers-routing\u002F05.project-structure",{"title":4296,"path":4297,"stem":4298},"Контролери: основи маршрутизації","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fcontrollers-basics","18.web-development\u002F07.nestjs-controllers-routing\u002F06.controllers-basics",{"title":4300,"path":4301,"stem":4302},"Декоратори маршрутизації HTTP-методів","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Froute-decorators","18.web-development\u002F07.nestjs-controllers-routing\u002F07.route-decorators",{"title":4304,"path":4305,"stem":4306},"Параметри маршруту та декоратор @Param","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Froute-parameters","18.web-development\u002F07.nestjs-controllers-routing\u002F08.route-parameters",{"title":4308,"path":4309,"stem":4310},"Query-параметри та декоратор @Query","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fquery-parameters","18.web-development\u002F07.nestjs-controllers-routing\u002F09.query-parameters",{"title":4312,"path":4313,"stem":4314},"Тіло запиту та декоратор @Body","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Frequest-body","18.web-development\u002F07.nestjs-controllers-routing\u002F10.request-body",{"title":4316,"path":4317,"stem":4318},"Робота з заголовками запиту та відповіді","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fheaders-decorators","18.web-development\u002F07.nestjs-controllers-routing\u002F11.headers-decorators",{"title":4320,"path":4321,"stem":4322},"Data Transfer Objects (DTO): визначення та призначення","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fdto-introduction","18.web-development\u002F07.nestjs-controllers-routing\u002F12.dto-introduction",{"title":4324,"path":4325,"stem":4326},"Об'єкти Request та Response","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Frequest-response-objects","18.web-development\u002F07.nestjs-controllers-routing\u002F13.request-response-objects",{"title":4328,"path":4329,"stem":4330},"HTTP-статус коди та декоратор @HttpCode","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fhttp-status-codes","18.web-development\u002F07.nestjs-controllers-routing\u002F14.http-status-codes",{"title":4332,"path":4333,"stem":4334},"Перенаправлення (Redirects) та декоратор @Redirect","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fredirects","18.web-development\u002F07.nestjs-controllers-routing\u002F15.redirects",{"title":4336,"path":4337,"stem":4338},"Асинхронні обробники та Observables","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fasync-handlers","18.web-development\u002F07.nestjs-controllers-routing\u002F16.async-handlers",{"title":4340,"path":4341,"stem":4342},"Маршрутизація за піддоменами та версіонування API","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fsub-domain-routing","18.web-development\u002F07.nestjs-controllers-routing\u002F17.sub-domain-routing",{"title":4344,"path":4345,"stem":4346},"Області видимості контролерів (Scopes)","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fcontroller-scopes","18.web-development\u002F07.nestjs-controllers-routing\u002F18.controller-scopes",{"title":4348,"path":4349,"stem":4350},"Основні команди NestJS CLI","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fnestjs-cli-commands","18.web-development\u002F07.nestjs-controllers-routing\u002F19.nestjs-cli-commands",{"title":4352,"path":4353,"stem":4354},"Практичний приклад: створення CRUD-контролера","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fcrud-example","18.web-development\u002F07.nestjs-controllers-routing\u002F20.crud-example",{"title":4356,"path":4357,"stem":4358},"Тестування контролерів","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Ftesting-controllers","18.web-development\u002F07.nestjs-controllers-routing\u002F21.testing-controllers",{"title":4360,"path":4361,"stem":4362},"Best Practices для контролерів та маршрутизації","\u002Fweb-development\u002Fnestjs-controllers-routing\u002Fbest-practices","18.web-development\u002F07.nestjs-controllers-routing\u002F22.best-practices",{"title":4364,"icon":4365,"path":4366,"stem":4367,"children":4368,"page":59},"Тема 8. Провайдери, сервіси та модульна система NestJS","i-lucide-package","\u002Fweb-development\u002Fnestjs-providers-modules","18.web-development\u002F08.nestjs-providers-modules",[4369,4373,4377,4381,4385,4389,4393,4397,4401,4405,4409,4413,4417,4421,4425],{"title":4370,"path":4371,"stem":4372},"Концепція провайдерів у NestJS","\u002Fweb-development\u002Fnestjs-providers-modules\u002Fproviders-concept","18.web-development\u002F08.nestjs-providers-modules\u002F01.providers-concept",{"title":4374,"path":4375,"stem":4376},"Сервіси: інкапсуляція бізнес-логіки","\u002Fweb-development\u002Fnestjs-providers-modules\u002Fservices-business-logic","18.web-development\u002F08.nestjs-providers-modules\u002F02.services-business-logic",{"title":4378,"path":4379,"stem":4380},"Практика ін","\u002Fweb-development\u002Fnestjs-providers-modules\u002Fdependency-injection-practice","18.web-development\u002F08.nestjs-providers-modules\u002F03.dependency-injection-practice",{"title":4382,"path":4383,"stem":4384},"Custom Providers: useValue, useClass, useFactory, useExisting","\u002Fweb-development\u002Fnestjs-providers-modules\u002Fcustom-providers","18.web-development\u002F08.nestjs-providers-modules\u002F04.custom-providers",{"title":4386,"path":4387,"stem":4388},"Injection Tokens: рядкові та символьні токени","\u002Fweb-development\u002Fnestjs-providers-modules\u002Finjection-tokens","18.web-development\u002F08.nestjs-providers-modules\u002F05.injection-tokens",{"title":4390,"path":4391,"stem":4392},"Опціональні провайдери та декоратор @Optional","\u002Fweb-development\u002Fnestjs-providers-modules\u002Foptional-providers","18.web-development\u002F08.nestjs-providers-modules\u002F07.optional-providers",{"title":4394,"path":4395,"stem":4396},"Структура модулів: imports, controllers, providers, exports","\u002Fweb-development\u002Fnestjs-providers-modules\u002Fmodules-structure","18.web-development\u002F08.nestjs-providers-modules\u002F08.modules-structure",{"title":4398,"path":4399,"stem":4400},"Feature Modules: ізоляція функціональності","\u002Fweb-development\u002Fnestjs-providers-modules\u002Ffeature-modules","18.web-development\u002F08.nestjs-providers-modules\u002F09.feature-modules",{"title":4402,"path":4403,"stem":4404},"Shared Modules: перевикористання провайдерів","\u002Fweb-development\u002Fnestjs-providers-modules\u002Fshared-modules","18.web-development\u002F08.nestjs-providers-modules\u002F10.shared-modules",{"title":4406,"path":4407,"stem":4408},"Global Modules та декоратор @Global","\u002Fweb-development\u002Fnestjs-providers-modules\u002Fglobal-modules","18.web-development\u002F08.nestjs-providers-modules\u002F11.global-modules",{"title":4410,"path":4411,"stem":4412},"Dynamic Modules: конфігурація під час виконання","\u002Fweb-development\u002Fnestjs-providers-modules\u002Fdynamic-modules","18.web-development\u002F08.nestjs-providers-modules\u002F12.dynamic-modules",{"title":4414,"path":4415,"stem":4416},"Циклічні залежності та forwardRef","\u002Fweb-development\u002Fnestjs-providers-modules\u002Fcircular-dependencies","18.web-development\u002F08.nestjs-providers-modules\u002F13.circular-dependencies",{"title":4418,"path":4419,"stem":4420},"Lifecycle Hooks: хуки життєвого циклу","\u002Fweb-development\u002Fnestjs-providers-modules\u002Flifecycle-hooks","18.web-development\u002F08.nestjs-providers-modules\u002F14.lifecycle-hooks",{"title":4422,"path":4423,"stem":4424},"ModuleRef: динамічний доступ до провайдерів","\u002Fweb-development\u002Fnestjs-providers-modules\u002Fmodule-reference","18.web-development\u002F08.nestjs-providers-modules\u002F15.module-reference",{"title":4426,"path":4427,"stem":4428},"Тестування сервісів та провайдерів","\u002Fweb-development\u002Fnestjs-providers-modules\u002Ftesting-services","18.web-development\u002F08.nestjs-providers-modules\u002F16.testing-services",{"title":4430,"icon":4431,"path":4432,"stem":4433,"children":4434,"page":59},"Тема 9. Валідація даних та конвеєр обробки запитів у NestJS","i-lucide-filter","\u002Fweb-development\u002Fnestjs-validation-pipeline","18.web-development\u002F09.nestjs-validation-pipeline",[4435,4439,4443,4447,4451,4455,4459,4463,4467,4471,4475,4479,4483,4487,4491,4495,4499,4503,4507],{"title":4436,"path":4437,"stem":4438},"Request Pipeline: конвеєр обробки запитів","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Frequest-pipeline","18.web-development\u002F09.nestjs-validation-pipeline\u002F01.request-pipeline",{"title":4440,"path":4441,"stem":4442},"Pipes: концепція трансформації та валідації","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fpipes-concept","18.web-development\u002F09.nestjs-validation-pipeline\u002F02.pipes-concept",{"title":4444,"path":4445,"stem":4446},"Вбудовані pipes: ParseIntPipe, ParseBoolPipe, ParseUUIDPipe","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fbuilt-in-pipes","18.web-development\u002F09.nestjs-validation-pipeline\u002F03.built-in-pipes",{"title":4448,"path":4449,"stem":4450},"ValidationPipe: автоматична валідація DTO","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fvalidation-pipe","18.web-development\u002F09.nestjs-validation-pipeline\u002F04.validation-pipe",{"title":4452,"path":4453,"stem":4454},"Декоратори class-validator для DTO","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fclass-validator-decorators","18.web-development\u002F09.nestjs-validation-pipeline\u002F05.class-validator-decorators",{"title":4456,"path":4457,"stem":4458},"Створення кастомних валідаторів","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fcustom-validators","18.web-development\u002F09.nestjs-validation-pipeline\u002F06.custom-validators",{"title":4460,"path":4461,"stem":4462},"Створення власних Pipes","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fcustom-pipes","18.web-development\u002F09.nestjs-validation-pipeline\u002F07.custom-pipes",{"title":4464,"path":4465,"stem":4466},"Основи Middleware","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fmiddleware-basics","18.web-development\u002F09.nestjs-validation-pipeline\u002F08.middleware-basics",{"title":4468,"path":4469,"stem":4470},"Практичні приклади Middleware","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fmiddleware-examples","18.web-development\u002F09.nestjs-validation-pipeline\u002F09.middleware-examples",{"title":4472,"path":4473,"stem":4474},"Guards: захисні перехоплювачі доступу","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fguards-concept","18.web-development\u002F09.nestjs-validation-pipeline\u002F10.guards-concept",{"title":4476,"path":4477,"stem":4478},"Створення кастомних Guards","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fcustom-guards","18.web-development\u002F09.nestjs-validation-pipeline\u002F11.custom-guards",{"title":4480,"path":4481,"stem":4482},"Interceptors: перехоплення та трансформація відповідей","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Finterceptors-concept","18.web-development\u002F09.nestjs-validation-pipeline\u002F12.interceptors-concept",{"title":4484,"path":4485,"stem":4486},"Практичні приклади Interceptors","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Finterceptor-examples","18.web-development\u002F09.nestjs-validation-pipeline\u002F13.interceptor-examples",{"title":4488,"path":4489,"stem":4490},"Exception Filters: обробка виключень","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fexception-filters","18.web-development\u002F09.nestjs-validation-pipeline\u002F14.exception-filters",{"title":4492,"path":4493,"stem":4494},"Custom Exception Filters: спеціалізовані фільтри","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fcustom-exception-filters","18.web-development\u002F09.nestjs-validation-pipeline\u002F15.custom-exception-filters",{"title":4496,"path":4497,"stem":4498},"Execution Context: контекст виконання","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fexecution-context","18.web-development\u002F09.nestjs-validation-pipeline\u002F16.execution-context",{"title":4500,"path":4501,"stem":4502},"Custom Decorators: власні декоратори","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fcustom-decorators","18.web-development\u002F09.nestjs-validation-pipeline\u002F17.custom-decorators",{"title":4504,"path":4505,"stem":4506},"Global Components: глобальні компоненти","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fglobal-components","18.web-development\u002F09.nestjs-validation-pipeline\u002F18.global-components",{"title":4508,"path":4509,"stem":4510},"Pipeline Best Practices: найкращі практики","\u002Fweb-development\u002Fnestjs-validation-pipeline\u002Fpipeline-best-practices","18.web-development\u002F09.nestjs-validation-pipeline\u002F19.pipeline-best-practices",{"title":4512,"icon":2821,"path":4513,"stem":4514,"children":4515,"page":59},"Інтеграція реляційних баз даних засобами TypeORM","\u002Fweb-development\u002Ftypeorm-integration","18.web-development\u002F10.typeorm-integration",[4516,4520,4524,4528,4532,4536,4540],{"title":4517,"path":4518,"stem":4519},"Робота з базами даних у Node.js через нативні драйвери","\u002Fweb-development\u002Ftypeorm-integration\u002F01-nodejs-database-drivers","18.web-development\u002F10.typeorm-integration\u002F01-nodejs-database-drivers",{"title":4521,"path":4522,"stem":4523},"ORM та знайомство з TypeORM","\u002Fweb-development\u002Ftypeorm-integration\u002F02-orm-and-typeorm-intro","18.web-development\u002F10.typeorm-integration\u002F02-orm-and-typeorm-intro",{"title":4525,"path":4526,"stem":4527},"Налаштування TypeORM у NestJS проєкті","\u002Fweb-development\u002Ftypeorm-integration\u002F03-typeorm-setup-nestjs","18.web-development\u002F10.typeorm-integration\u002F03-typeorm-setup-nestjs",{"title":4529,"path":4530,"stem":4531},"Entity класи та декоратори TypeORM","\u002Fweb-development\u002Ftypeorm-integration\u002F04-entities-and-decorators","18.web-development\u002F10.typeorm-integration\u002F04-entities-and-decorators",{"title":4533,"path":4534,"stem":4535},"Repository Pattern та CRUD операції","\u002Fweb-development\u002Ftypeorm-integration\u002F05-repository-pattern-crud","18.web-development\u002F10.typeorm-integration\u002F05-repository-pattern-crud",{"title":4537,"path":4538,"stem":4539},"Пагінація та фільтрація даних","\u002Fweb-development\u002Ftypeorm-integration\u002F06-pagination-filtering","18.web-development\u002F10.typeorm-integration\u002F06-pagination-filtering",{"title":4541,"path":4542,"stem":4543},"QueryBuilder для складних запитів","\u002Fweb-development\u002Ftypeorm-integration\u002F07-query-builder","18.web-development\u002F10.typeorm-integration\u002F07-query-builder",{"title":4545,"icon":4546,"path":4547,"stem":4548,"children":4549,"page":59},"Зв'язки між сутностями, міграції та оптимізація запитів","i-lucide-git-branch","\u002Fweb-development\u002Fentity-relations-migrations","18.web-development\u002F11.entity-relations-migrations",[4550,4554,4558,4562,4566],{"title":4551,"path":4552,"stem":4553},"Зв'язки One-to-Many та Many-to-One","\u002Fweb-development\u002Fentity-relations-migrations\u002F01-one-to-many-many-to-one","18.web-development\u002F11.entity-relations-migrations\u002F01-one-to-many-many-to-one",{"title":4555,"path":4556,"stem":4557},"Зв'язки One-to-One та Many-to-Many","\u002Fweb-development\u002Fentity-relations-migrations\u002F02-one-to-one-many-to-many","18.web-development\u002F11.entity-relations-migrations\u002F02-one-to-one-many-to-many",{"title":4559,"path":4560,"stem":4561},"Керування міграціями бази даних","\u002Fweb-development\u002Fentity-relations-migrations\u002F03-migrations-management","18.web-development\u002F11.entity-relations-migrations\u002F03-migrations-management",{"title":4563,"path":4564,"stem":4565},"Транзакції у TypeORM","\u002Fweb-development\u002Fentity-relations-migrations\u002F04-transactions","18.web-development\u002F11.entity-relations-migrations\u002F04-transactions",{"title":4567,"path":4568,"stem":4569,"children":4570},"Індекси та оптимізація запитів","\u002Fweb-development\u002Fentity-relations-migrations\u002F05-indexes-optimization","18.web-development\u002F11.entity-relations-migrations\u002F05-indexes-optimization",[4571],{"title":4567,"path":4568,"stem":4569},{"title":4573,"icon":4574,"path":4575,"stem":4576,"children":4577,"page":59},"Механізми автентифікації у вебзастосунках","i-lucide-key","\u002Fweb-development\u002Fauthentication","18.web-development\u002F12.authentication",[4578,4582,4586,4590,4594,4598,4602,4606,4610],{"title":4579,"path":4580,"stem":4581},"Автентифікація vs Авторизація","\u002Fweb-development\u002Fauthentication\u002F01-authentication-vs-authorization","18.web-development\u002F12.authentication\u002F01-authentication-vs-authorization",{"title":4583,"path":4584,"stem":4585},"Стратегії автентифікації","\u002Fweb-development\u002Fauthentication\u002F02-authentication-strategies","18.web-development\u002F12.authentication\u002F02-authentication-strategies",{"title":4587,"path":4588,"stem":4589},"Автентифікація на основі сесій","\u002Fweb-development\u002Fauthentication\u002F03-session-based-authentication","18.web-development\u002F12.authentication\u002F03-session-based-authentication",{"title":4591,"path":4592,"stem":4593},"Структура JSON Web Token (JWT)","\u002Fweb-development\u002Fauthentication\u002F04-jwt-structure","18.web-development\u002F12.authentication\u002F04-jwt-structure",{"title":4595,"path":4596,"stem":4597},"Інтеграція JWT у NestJS","\u002Fweb-development\u002Fauthentication\u002F05-nestjs-jwt-integration","18.web-development\u002F12.authentication\u002F05-nestjs-jwt-integration",{"title":4599,"path":4600,"stem":4601},"Passport.js стратегії у NestJS","\u002Fweb-development\u002Fauthentication\u002F06-passport-strategies","18.web-development\u002F12.authentication\u002F06-passport-strategies",{"title":4603,"path":4604,"stem":4605},"Безпечне зберігання паролів: хешування та криптографічний захист","\u002Fweb-development\u002Fauthentication\u002F07-password-hashing","18.web-development\u002F12.authentication\u002F07-password-hashing",{"title":4607,"path":4608,"stem":4609},"Refresh Token та безпечне оновлення доступу","\u002Fweb-development\u002Fauthentication\u002F08-refresh-tokens","18.web-development\u002F12.authentication\u002F08-refresh-tokens",{"title":4611,"path":4612,"stem":4613},"OAuth 2.0 та OpenID Connect: делегована автентифікація","\u002Fweb-development\u002Fauthentication\u002F09-oauth2-openid","18.web-development\u002F12.authentication\u002F09-oauth2-openid",{"title":4615,"icon":4616,"path":4617,"stem":4618,"children":4619,"page":59},"Авторизація та безпека серверних застосунків","i-lucide-shield","\u002Fweb-development\u002Fauthorization-security","18.web-development\u002F13.authorization-security",[4620,4624,4628,4632,4636,4640,4644,4648,4652,4656],{"title":4621,"path":4622,"stem":4623},"Моделі авторизації","\u002Fweb-development\u002Fauthorization-security\u002F01-authorization-models","18.web-development\u002F13.authorization-security\u002F01-authorization-models",{"title":4625,"path":4626,"stem":4627},"Реалізація RBAC у NestJS","\u002Fweb-development\u002Fauthorization-security\u002F02-rbac-implementation","18.web-development\u002F13.authorization-security\u002F02-rbac-implementation",{"title":4629,"path":4630,"stem":4631},"Permission-Based Access Control","\u002Fweb-development\u002Fauthorization-security\u002F03-permission-based-access","18.web-development\u002F13.authorization-security\u002F03-permission-based-access",{"title":4633,"path":4634,"stem":4635},"ABAC та бібліотека CASL","\u002Fweb-development\u002Fauthorization-security\u002F04-abac-casl","18.web-development\u002F13.authorization-security\u002F04-abac-casl",{"title":4637,"path":4638,"stem":4639},"Кастомні декоратори та метадані","\u002Fweb-development\u002Fauthorization-security\u002F05-custom-decorators-metadata","18.web-development\u002F13.authorization-security\u002F05-custom-decorators-metadata",{"title":4641,"path":4642,"stem":4643},"Конфігурація CORS","\u002Fweb-development\u002Fauthorization-security\u002F06-cors-configuration","18.web-development\u002F13.authorization-security\u002F06-cors-configuration",{"title":4645,"path":4646,"stem":4647},"Захист через HTTP Security Headers (Helmet)","\u002Fweb-development\u002Fauthorization-security\u002F07-helmet-security-headers","18.web-development\u002F13.authorization-security\u002F07-helmet-security-headers",{"title":4649,"path":4650,"stem":4651},"Rate Limiting та Throttling","\u002Fweb-development\u002Fauthorization-security\u002F08-rate-limiting-throttling","18.web-development\u002F13.authorization-security\u002F08-rate-limiting-throttling",{"title":4653,"path":4654,"stem":4655},"Захист від поширених атак","\u002Fweb-development\u002Fauthorization-security\u002F09-common-attacks-protection","18.web-development\u002F13.authorization-security\u002F09-common-attacks-protection",{"title":4657,"path":4658,"stem":4659},"HTTPS у продакшені","\u002Fweb-development\u002Fauthorization-security\u002F10-https-production","18.web-development\u002F13.authorization-security\u002F10-https-production",{"title":4661,"icon":871,"path":4662,"stem":4663,"children":4664,"page":59},"Комунікація у реальному часі, нотифікації та фонові задачі","\u002Fweb-development\u002Frealtime-notifications-jobs","18.web-development\u002F14.realtime-notifications-jobs",[4665,4669,4673,4677,4681,4685,4688,4691,4695,4699],{"title":4666,"path":4667,"stem":4668},"Методи комунікації у реальному часі","\u002Fweb-development\u002Frealtime-notifications-jobs\u002F01-realtime-communication-methods","18.web-development\u002F14.realtime-notifications-jobs\u002F01-realtime-communication-methods",{"title":4670,"path":4671,"stem":4672},"WebSocket Gateway у NestJS","\u002Fweb-development\u002Frealtime-notifications-jobs\u002F02-websocket-gateway","18.web-development\u002F14.realtime-notifications-jobs\u002F02-websocket-gateway",{"title":4674,"path":4675,"stem":4676},"Lifecycle та Rooms у WebSocket","\u002Fweb-development\u002Frealtime-notifications-jobs\u002F03-websocket-lifecycle-rooms","18.web-development\u002F14.realtime-notifications-jobs\u002F03-websocket-lifecycle-rooms",{"title":4678,"path":4679,"stem":4680},"Server-Sent Events (SSE)","\u002Fweb-development\u002Frealtime-notifications-jobs\u002F04-server-sent-events","18.web-development\u002F14.realtime-notifications-jobs\u002F04-server-sent-events",{"title":4682,"path":4683,"stem":4684},"Архітектура системи нотифікацій","\u002Fweb-development\u002Frealtime-notifications-jobs\u002F05-notification-system","18.web-development\u002F14.realtime-notifications-jobs\u002F05-notification-system",{"title":904,"path":4686,"stem":4687},"\u002Fweb-development\u002Frealtime-notifications-jobs\u002F06-email-notifications","18.web-development\u002F14.realtime-notifications-jobs\u002F06-email-notifications",{"title":900,"path":4689,"stem":4690},"\u002Fweb-development\u002Frealtime-notifications-jobs\u002F07-web-push-notifications","18.web-development\u002F14.realtime-notifications-jobs\u002F07-web-push-notifications",{"title":4692,"path":4693,"stem":4694},"Фонові задачі та черги","\u002Fweb-development\u002Frealtime-notifications-jobs\u002F08-background-jobs-queues","18.web-development\u002F14.realtime-notifications-jobs\u002F08-background-jobs-queues",{"title":4696,"path":4697,"stem":4698},"Планувальники та Cron jobs","\u002Fweb-development\u002Frealtime-notifications-jobs\u002F09-schedulers-cron","18.web-development\u002F14.realtime-notifications-jobs\u002F09-schedulers-cron",{"title":4700,"path":4701,"stem":4702},"Практичні сценарії застосування","\u002Fweb-development\u002Frealtime-notifications-jobs\u002F10-practical-scenarios","18.web-development\u002F14.realtime-notifications-jobs\u002F10-practical-scenarios",{"title":4704,"icon":4705,"path":4706,"stem":4707,"children":4708,"page":59},"Тестування, документування та розгортання застосунків","i-lucide-rocket","\u002Fweb-development\u002Ftesting-documentation-deployment","18.web-development\u002F15.testing-documentation-deployment",[4709,4713,4717,4721,4725,4729,4733,4737,4741,4745],{"title":4710,"path":4711,"stem":4712},"Піраміда тестування та стратегія","\u002Fweb-development\u002Ftesting-documentation-deployment\u002F01-testing-pyramid-strategy","18.web-development\u002F15.testing-documentation-deployment\u002F01-testing-pyramid-strategy",{"title":4714,"path":4715,"stem":4716},"Основи Jest у NestJS","\u002Fweb-development\u002Ftesting-documentation-deployment\u002F02-jest-nestjs-basics","18.web-development\u002F15.testing-documentation-deployment\u002F02-jest-nestjs-basics",{"title":4718,"path":4719,"stem":4720},"Unit-тестування сервісів","\u002Fweb-development\u002Ftesting-documentation-deployment\u002F03-unit-testing-services","18.web-development\u002F15.testing-documentation-deployment\u002F03-unit-testing-services",{"title":4722,"path":4723,"stem":4724},"E2E тестування та покриття коду","\u002Fweb-development\u002Ftesting-documentation-deployment\u002F04-e2e-testing-coverage","18.web-development\u002F15.testing-documentation-deployment\u002F04-e2e-testing-coverage",{"title":4726,"path":4727,"stem":4728},"Swagger, OpenAPI, Scalar та Arazzo","\u002Fweb-development\u002Ftesting-documentation-deployment\u002F05-swagger-openapi","18.web-development\u002F15.testing-documentation-deployment\u002F05-swagger-openapi",{"title":4730,"path":4731,"stem":4732},"Керування конфігурацією","\u002Fweb-development\u002Ftesting-documentation-deployment\u002F06-configuration-management","18.web-development\u002F15.testing-documentation-deployment\u002F06-configuration-management",{"title":4734,"path":4735,"stem":4736},"Docker та контейнеризація","\u002Fweb-development\u002Ftesting-documentation-deployment\u002F07-docker-containerization","18.web-development\u002F15.testing-documentation-deployment\u002F07-docker-containerization",{"title":4738,"path":4739,"stem":4740},"CI\u002FCD Pipelines","\u002Fweb-development\u002Ftesting-documentation-deployment\u002F08-cicd-pipelines","18.web-development\u002F15.testing-documentation-deployment\u002F08-cicd-pipelines",{"title":4742,"path":4743,"stem":4744},"Логування та моніторинг","\u002Fweb-development\u002Ftesting-documentation-deployment\u002F09-logging-monitoring","18.web-development\u002F15.testing-documentation-deployment\u002F09-logging-monitoring",{"title":4746,"path":4747,"stem":4748},"Серіалізація та компресія","\u002Fweb-development\u002Ftesting-documentation-deployment\u002F10-serialization-compression","18.web-development\u002F15.testing-documentation-deployment\u002F10-serialization-compression",{"title":4750,"icon":4751,"path":4752,"stem":4753,"children":4754,"page":59},"AI Core: мислення AI","i-lucide-brain","\u002Fai-core","19.ai-core",[4755,4796,4845,4883],{"title":4756,"icon":4705,"path":4757,"stem":4758,"children":4759,"page":59},"Вхід у професію AI Native Developer","\u002Fai-core\u002Fai-native-developer","19.ai-core\u002F01.ai-native-developer",[4760,4764,4768,4772,4776,4780,4784,4788,4792],{"title":4761,"path":4762,"stem":4763},"Вступ до професії розробника цифрових продуктів","\u002Fai-core\u002Fai-native-developer\u002Fdigital-products","19.ai-core\u002F01.ai-native-developer\u002F01.digital-products",{"title":4765,"path":4766,"stem":4767},"Професія розробника програмного забезпечення","\u002Fai-core\u002Fai-native-developer\u002Fsoftware-developer","19.ai-core\u002F01.ai-native-developer\u002F02.software-developer",{"title":4769,"path":4770,"stem":4771},"Професія AI Native Developer","\u002Fai-core\u002Fai-native-developer\u002Fai-native-developer","19.ai-core\u002F01.ai-native-developer\u002F03.ai-native-developer",{"title":4773,"path":4774,"stem":4775},"Вплив AI на розробку програмного забезпечення","\u002Fai-core\u002Fai-native-developer\u002Fai-impact-on-development","19.ai-core\u002F01.ai-native-developer\u002F04.ai-impact-on-development",{"title":4777,"path":4778,"stem":4779},"Життєвий цикл цифрового продукту","\u002Fai-core\u002Fai-native-developer\u002Fproduct-lifecycle","19.ai-core\u002F01.ai-native-developer\u002F05.product-lifecycle",{"title":4781,"path":4782,"stem":4783},"Застосування AI на етапах створення цифрового продукту","\u002Fai-core\u002Fai-native-developer\u002Fai-in-product-creation","19.ai-core\u002F01.ai-native-developer\u002F06.ai-in-product-creation",{"title":4785,"path":4786,"stem":4787},"Розподіл завдань між людиною та AI","\u002Fai-core\u002Fai-native-developer\u002Fhuman-vs-ai-tasks","19.ai-core\u002F01.ai-native-developer\u002F07.human-vs-ai-tasks",{"title":4789,"path":4790,"stem":4791},"Компетенції AI Native Developer","\u002Fai-core\u002Fai-native-developer\u002Fcompetencies","19.ai-core\u002F01.ai-native-developer\u002F08.competencies",{"title":4793,"path":4794,"stem":4795},"Карта професійного розвитку AI Native Developer","\u002Fai-core\u002Fai-native-developer\u002Fcareer-roadmap","19.ai-core\u002F01.ai-native-developer\u002F09.career-roadmap",{"title":4797,"icon":255,"path":4798,"stem":4799,"children":4800,"page":59},"Штучний інтелект і машинне навчання","\u002Fai-core\u002Fai-and-machine-learning","19.ai-core\u002F02.ai-and-machine-learning",[4801,4805,4809,4813,4817,4821,4825,4829,4833,4837,4841],{"title":4802,"path":4803,"stem":4804},"Штучний інтелект","\u002Fai-core\u002Fai-and-machine-learning\u002Fwhat-is-ai","19.ai-core\u002F02.ai-and-machine-learning\u002F01.what-is-ai",{"title":4806,"path":4807,"stem":4808},"Відмінність AI від інших програмних систем","\u002Fai-core\u002Fai-and-machine-learning\u002Fai-vs-automation","19.ai-core\u002F02.ai-and-machine-learning\u002F02.ai-vs-automation",{"title":4810,"path":4811,"stem":4812},"Завдання штучного інтелекту","\u002Fai-core\u002Fai-and-machine-learning\u002Fai-tasks","19.ai-core\u002F02.ai-and-machine-learning\u002F03.ai-tasks",{"title":4814,"path":4815,"stem":4816},"Machine Learning","\u002Fai-core\u002Fai-and-machine-learning\u002Fmachine-learning","19.ai-core\u002F02.ai-and-machine-learning\u002F04.machine-learning",{"title":4818,"path":4819,"stem":4820},"Machine Learning Workflow","\u002Fai-core\u002Fai-and-machine-learning\u002Fml-workflow","19.ai-core\u002F02.ai-and-machine-learning\u002F05.ml-workflow",{"title":4822,"path":4823,"stem":4824},"Типи машинного навчання","\u002Fai-core\u002Fai-and-machine-learning\u002Fml-types","19.ai-core\u002F02.ai-and-machine-learning\u002F06.ml-types",{"title":4826,"path":4827,"stem":4828},"Generative AI","\u002Fai-core\u002Fai-and-machine-learning\u002Fgenerative-ai","19.ai-core\u002F02.ai-and-machine-learning\u002F07.generative-ai",{"title":4830,"path":4831,"stem":4832},"Типи контенту, створюваного AI","\u002Fai-core\u002Fai-and-machine-learning\u002Fai-content-types","19.ai-core\u002F02.ai-and-machine-learning\u002F08.ai-content-types",{"title":4834,"path":4835,"stem":4836},"Великі мовні моделі","\u002Fai-core\u002Fai-and-machine-learning\u002Flarge-language-models","19.ai-core\u002F02.ai-and-machine-learning\u002F09.large-language-models",{"title":4838,"path":4839,"stem":4840},"Можливості та обмеження Generative AI","\u002Fai-core\u002Fai-and-machine-learning\u002Fcapabilities-and-limitations","19.ai-core\u002F02.ai-and-machine-learning\u002F10.capabilities-and-limitations",{"title":4842,"path":4843,"stem":4844},"Сучасні AI-асистенти","\u002Fai-core\u002Fai-and-machine-learning\u002Fmodern-ai-assistants","19.ai-core\u002F02.ai-and-machine-learning\u002F11.modern-ai-assistants",{"title":4846,"icon":4847,"path":4848,"stem":4849,"children":4850,"page":59},"Постановка завдань для AI: принципи створення промптів","i-lucide-message-square-text","\u002Fai-core\u002Fprompt-engineering","19.ai-core\u002F03.prompt-engineering",[4851,4855,4859,4863,4867,4871,4875,4879],{"title":4852,"path":4853,"stem":4854},"Промпт як інструмент","\u002Fai-core\u002Fprompt-engineering\u002Fprompt-as-tool","19.ai-core\u002F03.prompt-engineering\u002F01.prompt-as-tool",{"title":4856,"path":4857,"stem":4858},"Принципи створення промптів","\u002Fai-core\u002Fprompt-engineering\u002Fprompt-principles","19.ai-core\u002F03.prompt-engineering\u002F02.prompt-principles",{"title":4860,"path":4861,"stem":4862},"Структура промпта","\u002Fai-core\u002Fprompt-engineering\u002Fprompt-structure","19.ai-core\u002F03.prompt-engineering\u002F03.prompt-structure",{"title":4864,"path":4865,"stem":4866},"Види промптів за типом задачі","\u002Fai-core\u002Fprompt-engineering\u002Fprompt-types","19.ai-core\u002F03.prompt-engineering\u002F04.prompt-types",{"title":4868,"path":4869,"stem":4870},"Прийоми посилення промпта","\u002Fai-core\u002Fprompt-engineering\u002Fprompt-enhancement","19.ai-core\u002F03.prompt-engineering\u002F05.prompt-enhancement",{"title":4872,"path":4873,"stem":4874},"Розбір і покращення промпта","\u002Fai-core\u002Fprompt-engineering\u002Fprompt-analysis","19.ai-core\u002F03.prompt-engineering\u002F06.prompt-analysis",{"title":4876,"path":4877,"stem":4878},"Типові помилки під час створення промптів","\u002Fai-core\u002Fprompt-engineering\u002Fcommon-mistakes","19.ai-core\u002F03.prompt-engineering\u002F07.common-mistakes",{"title":4880,"path":4881,"stem":4882},"Практикум: особиста бібліотека промптів","\u002Fai-core\u002Fprompt-engineering\u002Fprompt-library","19.ai-core\u002F03.prompt-engineering\u002F08.prompt-library",{"title":4884,"icon":793,"path":4885,"stem":4886,"children":4887,"page":59},"Перевірка результатів, безпека та AI Native Workflow","\u002Fai-core\u002Fverification-security-workflow","19.ai-core\u002F04.verification-security-workflow",[4888,4892,4896,4900,4904,4908,4912,4916,4920],{"title":4889,"path":4890,"stem":4891},"Межі можливостей AI","\u002Fai-core\u002Fverification-security-workflow\u002Fai-limitations","19.ai-core\u002F04.verification-security-workflow\u002F01.ai-limitations",{"title":4893,"path":4894,"stem":4895},"Галюцинації AI","\u002Fai-core\u002Fverification-security-workflow\u002Fai-hallucinations","19.ai-core\u002F04.verification-security-workflow\u002F02.ai-hallucinations",{"title":4897,"path":4898,"stem":4899},"Критичне мислення під час роботи з AI","\u002Fai-core\u002Fverification-security-workflow\u002Fcritical-thinking","19.ai-core\u002F04.verification-security-workflow\u002F03.critical-thinking",{"title":4901,"path":4902,"stem":4903},"Перевірка результатів роботи AI","\u002Fai-core\u002Fverification-security-workflow\u002Fresult-verification","19.ai-core\u002F04.verification-security-workflow\u002F04.result-verification",{"title":4905,"path":4906,"stem":4907},"Захист даних під час роботи з AI","\u002Fai-core\u002Fverification-security-workflow\u002Fdata-protection","19.ai-core\u002F04.verification-security-workflow\u002F05.data-protection",{"title":4909,"path":4910,"stem":4911},"Авторське право та навчальна доброчесність","\u002Fai-core\u002Fverification-security-workflow\u002Fcopyright-integrity","19.ai-core\u002F04.verification-security-workflow\u002F06.copyright-integrity",{"title":4913,"path":4914,"stem":4915},"Відповідальне використання AI","\u002Fai-core\u002Fverification-security-workflow\u002Fresponsible-use","19.ai-core\u002F04.verification-security-workflow\u002F07.responsible-use",{"title":4917,"path":4918,"stem":4919},"AI Native Workflow","\u002Fai-core\u002Fverification-security-workflow\u002Fai-native-workflow","19.ai-core\u002F04.verification-security-workflow\u002F08.ai-native-workflow",{"title":4921,"path":4922,"stem":4923},"Застосування AI Native Workflow під час створення цифрового продукту","\u002Fai-core\u002Fverification-security-workflow\u002Fworkflow-in-practice","19.ai-core\u002F04.verification-security-workflow\u002F09.workflow-in-practice",{"title":4925,"icon":4926,"path":4927,"stem":4928,"children":4929,"page":59},"AI Developer: Vibe Coding Sprint","i-lucide-code-xml","\u002Fai-developer","20.ai-developer",[4930,4956,4978,4999],{"title":4931,"icon":4932,"path":4933,"stem":4934,"children":4935,"page":59},"Проєктування і чорнова версія","i-lucide-pencil-ruler","\u002Fai-developer\u002Fdraft-creation","20.ai-developer\u002F01.draft-creation",[4936,4940,4944,4948,4952],{"title":4937,"path":4938,"stem":4939},"Парадигма Vibe Coding Workflow","\u002Fai-developer\u002Fdraft-creation\u002Fvibe-coding-workflow","20.ai-developer\u002F01.draft-creation\u002F01.vibe-coding-workflow",{"title":4941,"path":4942,"stem":4943},"AI-середовище швидкої розробки","\u002Fai-developer\u002Fdraft-creation\u002Fai-ide-environment","20.ai-developer\u002F01.draft-creation\u002F02.ai-ide-environment",{"title":4945,"path":4946,"stem":4947},"Користувацьке завдання та межі першої версії","\u002Fai-developer\u002Fdraft-creation\u002Fproduct-scope-and-mvp","20.ai-developer\u002F01.draft-creation\u002F03.product-scope-and-mvp",{"title":4949,"path":4950,"stem":4951},"Архітектура інтерфейсу та стани застосунку","\u002Fai-developer\u002Fdraft-creation\u002Fapplication-architecture-and-states","20.ai-developer\u002F01.draft-creation\u002F04.application-architecture-and-states",{"title":4953,"path":4954,"stem":4955},"Генерація та фіксація чорнової версії","\u002Fai-developer\u002Fdraft-creation\u002Fgenerating-draft-version","20.ai-developer\u002F01.draft-creation\u002F05.generating-draft-version",{"title":4957,"icon":4958,"path":4959,"stem":4960,"children":4961,"page":59},"Перша робоча версія","i-lucide-play-circle","\u002Fai-developer\u002Ffirst-working-version","20.ai-developer\u002F02.first-working-version",[4962,4966,4970,4974],{"title":4963,"path":4964,"stem":4965},"Уточнення контексту проєкту для AI","\u002Fai-developer\u002Ffirst-working-version\u002Frefining-project-context","20.ai-developer\u002F02.first-working-version\u002F01.refining-project-context",{"title":4967,"path":4968,"stem":4969},"Стратегія завдань для AI-розробки","\u002Fai-developer\u002Ffirst-working-version\u002Fai-prompting-strategy","20.ai-developer\u002F02.first-working-version\u002F02.ai-prompting-strategy",{"title":4971,"path":4972,"stem":4973},"Доопрацювання до першої робочої версії","\u002Fai-developer\u002Ffirst-working-version\u002Frefining-to-working-version","20.ai-developer\u002F02.first-working-version\u002F03.refining-to-working-version",{"title":4975,"path":4976,"stem":4977},"Перевірка першої робочої версії","\u002Fai-developer\u002Ffirst-working-version\u002Ftesting-first-working-version","20.ai-developer\u002F02.first-working-version\u002F04.testing-first-working-version",{"title":4979,"icon":3028,"path":4980,"stem":4981,"children":4982,"page":59},"Ітерації, дебагінг та відновлення","\u002Fai-developer\u002Fiteration-debugging-recovery","20.ai-developer\u002F03.iteration-debugging-recovery",[4983,4987,4991,4995],{"title":4984,"path":4985,"stem":4986},"Управління точковими змінами продукту","\u002Fai-developer\u002Fiteration-debugging-recovery\u002Fchange-management","20.ai-developer\u002F03.iteration-debugging-recovery\u002F01.change-management",{"title":4988,"path":4989,"stem":4990},"Надійність інтерфейсу та обробка помилок","\u002Fai-developer\u002Fiteration-debugging-recovery\u002Fscenario-reliability-and-errors","20.ai-developer\u002F03.iteration-debugging-recovery\u002F02.scenario-reliability-and-errors",{"title":4992,"path":4993,"stem":4994},"Керування контекстом і збереження версій","\u002Fai-developer\u002Fiteration-debugging-recovery\u002Fproject-context-and-versions","20.ai-developer\u002F03.iteration-debugging-recovery\u002F03.project-context-and-versions",{"title":4996,"path":4997,"stem":4998},"Збої AI-розробки, ліміти та аварійне відновлення","\u002Fai-developer\u002Fiteration-debugging-recovery\u002Fai-breakdowns-and-recovery","20.ai-developer\u002F03.iteration-debugging-recovery\u002F04.ai-breakdowns-and-recovery",{"title":5000,"icon":5001,"path":5002,"stem":5003,"children":5004,"page":59},"Перевірка та завершення продукту","i-lucide-check-check","\u002Fai-developer\u002Fverification-and-completion","20.ai-developer\u002F04.verification-and-completion",[5005,5009,5013],{"title":5006,"path":5007,"stem":5008},"Комплексний аудит та підсумкове тестування","\u002Fai-developer\u002Fverification-and-completion\u002Ffinal-product-testing","20.ai-developer\u002F04.verification-and-completion\u002F01.final-product-testing",{"title":5010,"path":5011,"stem":5012},"Підготовка підсумкової версії коду","\u002Fai-developer\u002Fverification-and-completion\u002Fpreparing-release-version","20.ai-developer\u002F04.verification-and-completion\u002F02.preparing-release-version",{"title":5014,"path":5015,"stem":5016},"Демонстрація, публікація та критерії оцінювання","\u002Fai-developer\u002Fverification-and-completion\u002Fproduct-showcase-and-publishing","20.ai-developer\u002F04.verification-and-completion\u002F03.product-showcase-and-publishing",{"title":5018,"path":5019,"stem":5020,"children":5021,"page":59},"Tailwind","\u002Ftailwind","21.tailwind",[5022,5026,5030,5034,5038,5042,5046,5050,5054,5058,5062,5066],{"title":5023,"path":5024,"stem":5025},"Що таке Tailwind CSS і навіщо він потрібен","\u002Ftailwind\u002Ftailwind-intro-philosophy","21.tailwind\u002F01.tailwind-intro-philosophy",{"title":5027,"path":5028,"stem":5029},"Встановлення та налаштування Tailwind CSS v4","\u002Ftailwind\u002Ftailwind-installation-setup","21.tailwind\u002F02.tailwind-installation-setup",{"title":5031,"path":5032,"stem":5033},"Utility-класи: основи та система Tailwind","\u002Ftailwind\u002Ftailwind-utility-classes-core","21.tailwind\u002F03.tailwind-utility-classes-core",{"title":5035,"path":5036,"stem":5037},"Layout: Flexbox та Grid через Tailwind","\u002Ftailwind\u002Ftailwind-flexbox-grid","21.tailwind\u002F04.tailwind-flexbox-grid",{"title":5039,"path":5040,"stem":5041},"Кастомізація теми через @theme у Tailwind v4","\u002Ftailwind\u002Ftailwind-theme-customization","21.tailwind\u002F05.tailwind-theme-customization",{"title":5043,"path":5044,"stem":5045},"Варіанти: hover, focus, responsive, dark mode та нові v4","\u002Ftailwind\u002Ftailwind-variants-states","21.tailwind\u002F06.tailwind-variants-states",{"title":5047,"path":5048,"stem":5049},"Типографіка та система кольорів у Tailwind v4","\u002Ftailwind\u002Ftailwind-typography-colors","21.tailwind\u002F07.tailwind-typography-colors",{"title":5051,"path":5052,"stem":5053},"Компоненти та повторюваність: @apply, @utility та патерни","\u002Ftailwind\u002Ftailwind-components-patterns","21.tailwind\u002F08.tailwind-components-patterns",{"title":5055,"path":5056,"stem":5057},"Темна тема та система дизайн-токенів у Tailwind v4","\u002Ftailwind\u002Ftailwind-dark-mode-theming","21.tailwind\u002F09.tailwind-dark-mode-theming",{"title":5059,"path":5060,"stem":5061},"Довільні значення та контейнерні запити у Tailwind v4","\u002Ftailwind\u002Ftailwind-arbitrary-container-queries","21.tailwind\u002F10.tailwind-arbitrary-container-queries",{"title":5063,"path":5064,"stem":5065},"Анімації, трансформації та 3D у Tailwind v4","\u002Ftailwind\u002Ftailwind-animations-transforms","21.tailwind\u002F11.tailwind-animations-transforms",{"title":5067,"path":5068,"stem":5069},"Tailwind CLI, PostCSS та інтеграція з фреймворками","\u002Ftailwind\u002Ftailwind-cli-tooling","21.tailwind\u002F12.tailwind-cli-tooling",{"title":5071,"path":5072,"stem":5073},"Тестування компонентів діаграм","\u002Ftest-components","98.test-components",{"id":5075,"title":4250,"body":5076,"description":19257,"extension":19258,"links":19259,"meta":19260,"navigation":5305,"path":4251,"seo":19261,"stem":4252,"__hash__":19262},"docs\u002F18.web-development\u002F06.async-programming-nodejs\u002F07.event-emitter.md",{"type":5077,"value":5078,"toc":19203},"minimark",[5079,5083,5184,5189,5197,5211,5218,5611,5614,5666,5675,6245,6251,6259,6263,6273,6438,6441,6446,6457,6650,6653,6800,6815,6819,6826,6964,6967,7158,7162,7165,7392,7406,7546,7560,7564,7567,7756,7773,7777,7780,8036,8051,8055,8061,8065,9531,9534,9541,9548,9568,9572,9581,9585,9683,9686,9690,9859,9862,10452,10461,10465,10468,11482,11489,11500,11504,11507,11799,11805,11809,11815,11819,12145,12149,12396,12400,12697,12700,12704,12707,13279,13282,13404,13407,13839,13853,13857,13861,13864,14164,14167,14624,14635,14639,14645,14870,14873,14879,14882,15061,15070,15074,15077,15244,15250,15350,15353,15357,15360,16831,16834,16840,16847,16854,16858,16861,17459,17465,17469,17546,17550,17553,17557,17751,17755,18106,18109,18115,18124,18128,18131,18135,18333,18337,18344,18620,18623,18627,18814,18820,18824,18932,18936,19029,19033,19132,19136,19139,19142,19176,19183,19186,19199],[5080,5081,4250],"h1",{"id":5082},"eventemitter-подієва-модель-nodejs",[5084,5085,5086,5129],"card-group",{},[5087,5088,5091],"card",{"icon":5089,"title":5090},"i-lucide-target","🎯 Мета лекції",[5092,5093,5094,5113,5120,5123,5126],"ul",{},[5095,5096,5097,5098,5102,5103,5107,5108,5112],"li",{},"Опанувати патерн проєктування ",[5099,5100,5101],"strong",{},"Observer"," (",[5104,5105,5106],"em",{},"Спостерігач",") та його реалізацію у Node.js через клас ",[5109,5110,5111],"code",{},"EventEmitter",".",[5095,5114,5115,5116,5119],{},"Навчитися створювати власні подієві архітектури для слабкого зв'язування (",[5104,5117,5118],{},"loose coupling",") компонентів системи.",[5095,5121,5122],{},"Зрозуміти життєвий цикл подій: підписка, генерація, передача даних та відписка.",[5095,5124,5125],{},"Дослідити вбудовані EventEmitter у Node.js API: Stream, HTTP Server, Child Process.",[5095,5127,5128],{},"Розрізняти сценарії використання EventEmitter та Promise для асинхронних операцій.",[5087,5130,5132],{"icon":4574,"title":5131},"🔑 Ключові терміни",[5092,5133,5134,5144,5153,5166,5175],{},[5095,5135,5136,5143],{},[5099,5137,5138,5139,5142],{},"EventEmitter (",[5104,5140,5141],{},"генератор подій","):"," клас у Node.js, що реалізує патерн Observer для обробки асинхронних подій.",[5095,5145,5146,5152],{},[5099,5147,5148,5149,5142],{},"Event (",[5104,5150,5151],{},"подія"," іменоване повідомлення про зміну стану або завершення операції.",[5095,5154,5155,5161,5162,5165],{},[5099,5156,5157,5158,5142],{},"Listener (",[5104,5159,5160],{},"слухач"," функція зворотного виклику (",[5104,5163,5164],{},"callback","), що виконується при виникненні події.",[5095,5167,5168,5174],{},[5099,5169,5170,5171,5142],{},"emit (",[5104,5172,5173],{},"генерувати подію"," метод для виклику всіх зареєстрованих слухачів події з передачею даних.",[5095,5176,5177,5183],{},[5099,5178,5179,5180,5142],{},"Loose coupling (",[5104,5181,5182],{},"слабке зв'язування"," принцип архітектури, коли компоненти системи взаємодіють через події, не залежачи від конкретних реалізацій один одного.",[5185,5186,5188],"h2",{"id":5187},"архітектурний-контекст-проблема-прямої-взаємодії-компонентів","Архітектурний контекст: проблема прямої взаємодії компонентів",[5190,5191,5192,5193,5196],"p",{},"У попередніх лекціях ми розглядали асинхронні операції, що мають чітко визначений момент завершення: Promise вирішується один раз, async\u002Fawait функція повертає результат один раз. Проте багато реальних систем працюють з ",[5099,5194,5195],{},"потоками подій",", що відбуваються багаторазово у непередбачувані моменти часу:",[5092,5198,5199,5202,5205,5208],{},[5095,5200,5201],{},"Користувач клікає кнопку на веб-сторінці (подія може статися 0, 1 або 100 разів).",[5095,5203,5204],{},"Сервер приймає нове TCP-з'єднання (події надходять постійно під час роботи).",[5095,5206,5207],{},"Файловий монітор виявляє зміну файлу (події генеруються при кожній модифікації).",[5095,5209,5210],{},"Таймер спрацьовує кожні N мілісекунд (періодична подія).",[5190,5212,5213,5214,5217],{},"Традиційний підхід до обробки таких сценаріїв через прямі виклики функцій призводить до щільного зв'язування (",[5104,5215,5216],{},"tight coupling",") компонентів. Розглянемо приклад системи обробки замовлень:",[5219,5220,5225],"pre",{"className":5221,"code":5222,"language":5223,"meta":5224,"style":5224},"language-typescript shiki shiki-themes light-plus dark-plus dark-plus","\u002F\u002F ❌ АНТИПАТТЕРН: Щільне зв'язування компонентів\nclass OrderService {\n  private emailService: EmailService;\n  private inventoryService: InventoryService;\n  private analyticsService: AnalyticsService;\n\n  constructor(\n    emailService: EmailService,\n    inventoryService: InventoryService,\n    analyticsService: AnalyticsService\n  ) {\n    this.emailService = emailService;\n    this.inventoryService = inventoryService;\n    this.analyticsService = analyticsService;\n  }\n\n  async createOrder(userId: string, items: OrderItem[]): Promise\u003COrder> {\n    const order = await this.saveToDatabase(userId, items);\n    \n    \u002F\u002F OrderService ЗНАЄ про всі залежності та викликає їх безпосередньо\n    await this.emailService.sendConfirmation(userId, order);\n    await this.inventoryService.decreaseStock(items);\n    await this.analyticsService.trackPurchase(order);\n    \n    return order;\n  }\n}\n","typescript","",[5109,5226,5227,5236,5251,5270,5285,5300,5307,5316,5329,5341,5352,5358,5376,5392,5408,5414,5419,5466,5501,5507,5513,5541,5563,5585,5590,5600,5605],{"__ignoreMap":5224},[5228,5229,5232],"span",{"class":5230,"line":5231},"line",1,[5228,5233,5235],{"class":5234},"spJ8K","\u002F\u002F ❌ АНТИПАТТЕРН: Щільне зв'язування компонентів\n",[5228,5237,5239,5243,5247],{"class":5230,"line":5238},2,[5228,5240,5242],{"class":5241},"su1O8","class",[5228,5244,5246],{"class":5245},"sN1BT"," OrderService",[5228,5248,5250],{"class":5249},"sHH4Y"," {\n",[5228,5252,5254,5257,5261,5264,5267],{"class":5230,"line":5253},3,[5228,5255,5256],{"class":5241},"  private",[5228,5258,5260],{"class":5259},"siwwj"," emailService",[5228,5262,5263],{"class":5249},": ",[5228,5265,5266],{"class":5245},"EmailService",[5228,5268,5269],{"class":5249},";\n",[5228,5271,5273,5275,5278,5280,5283],{"class":5230,"line":5272},4,[5228,5274,5256],{"class":5241},[5228,5276,5277],{"class":5259}," inventoryService",[5228,5279,5263],{"class":5249},[5228,5281,5282],{"class":5245},"InventoryService",[5228,5284,5269],{"class":5249},[5228,5286,5288,5290,5293,5295,5298],{"class":5230,"line":5287},5,[5228,5289,5256],{"class":5241},[5228,5291,5292],{"class":5259}," analyticsService",[5228,5294,5263],{"class":5249},[5228,5296,5297],{"class":5245},"AnalyticsService",[5228,5299,5269],{"class":5249},[5228,5301,5303],{"class":5230,"line":5302},6,[5228,5304,5306],{"emptyLinePlaceholder":5305},true,"\n",[5228,5308,5310,5313],{"class":5230,"line":5309},7,[5228,5311,5312],{"class":5241},"  constructor",[5228,5314,5315],{"class":5249},"(\n",[5228,5317,5319,5322,5324,5326],{"class":5230,"line":5318},8,[5228,5320,5321],{"class":5259},"    emailService",[5228,5323,5263],{"class":5249},[5228,5325,5266],{"class":5245},[5228,5327,5328],{"class":5249},",\n",[5228,5330,5332,5335,5337,5339],{"class":5230,"line":5331},9,[5228,5333,5334],{"class":5259},"    inventoryService",[5228,5336,5263],{"class":5249},[5228,5338,5282],{"class":5245},[5228,5340,5328],{"class":5249},[5228,5342,5344,5347,5349],{"class":5230,"line":5343},10,[5228,5345,5346],{"class":5259},"    analyticsService",[5228,5348,5263],{"class":5249},[5228,5350,5351],{"class":5245},"AnalyticsService\n",[5228,5353,5355],{"class":5230,"line":5354},11,[5228,5356,5357],{"class":5249},"  ) {\n",[5228,5359,5361,5364,5366,5369,5372,5374],{"class":5230,"line":5360},12,[5228,5362,5363],{"class":5241},"    this",[5228,5365,5112],{"class":5249},[5228,5367,5368],{"class":5259},"emailService",[5228,5370,5371],{"class":5249}," = ",[5228,5373,5368],{"class":5259},[5228,5375,5269],{"class":5249},[5228,5377,5379,5381,5383,5386,5388,5390],{"class":5230,"line":5378},13,[5228,5380,5363],{"class":5241},[5228,5382,5112],{"class":5249},[5228,5384,5385],{"class":5259},"inventoryService",[5228,5387,5371],{"class":5249},[5228,5389,5385],{"class":5259},[5228,5391,5269],{"class":5249},[5228,5393,5395,5397,5399,5402,5404,5406],{"class":5230,"line":5394},14,[5228,5396,5363],{"class":5241},[5228,5398,5112],{"class":5249},[5228,5400,5401],{"class":5259},"analyticsService",[5228,5403,5371],{"class":5249},[5228,5405,5401],{"class":5259},[5228,5407,5269],{"class":5249},[5228,5409,5411],{"class":5230,"line":5410},15,[5228,5412,5413],{"class":5249},"  }\n",[5228,5415,5417],{"class":5230,"line":5416},16,[5228,5418,5306],{"emptyLinePlaceholder":5305},[5228,5420,5422,5425,5429,5432,5435,5437,5440,5443,5446,5448,5451,5454,5457,5460,5463],{"class":5230,"line":5421},17,[5228,5423,5424],{"class":5241},"  async",[5228,5426,5428],{"class":5427},"s8Opu"," createOrder",[5228,5430,5431],{"class":5249},"(",[5228,5433,5434],{"class":5259},"userId",[5228,5436,5263],{"class":5249},[5228,5438,5439],{"class":5245},"string",[5228,5441,5442],{"class":5249},", ",[5228,5444,5445],{"class":5259},"items",[5228,5447,5263],{"class":5249},[5228,5449,5450],{"class":5245},"OrderItem",[5228,5452,5453],{"class":5249},"[]): ",[5228,5455,5456],{"class":5245},"Promise",[5228,5458,5459],{"class":5249},"\u003C",[5228,5461,5462],{"class":5245},"Order",[5228,5464,5465],{"class":5249},"> {\n",[5228,5467,5469,5472,5476,5478,5482,5485,5487,5490,5492,5494,5496,5498],{"class":5230,"line":5468},18,[5228,5470,5471],{"class":5241},"    const",[5228,5473,5475],{"class":5474},"s-QsJ"," order",[5228,5477,5371],{"class":5249},[5228,5479,5481],{"class":5480},"s8xlr","await",[5228,5483,5484],{"class":5241}," this",[5228,5486,5112],{"class":5249},[5228,5488,5489],{"class":5427},"saveToDatabase",[5228,5491,5431],{"class":5249},[5228,5493,5434],{"class":5259},[5228,5495,5442],{"class":5249},[5228,5497,5445],{"class":5259},[5228,5499,5500],{"class":5249},");\n",[5228,5502,5504],{"class":5230,"line":5503},19,[5228,5505,5506],{"class":5249},"    \n",[5228,5508,5510],{"class":5230,"line":5509},20,[5228,5511,5512],{"class":5234},"    \u002F\u002F OrderService ЗНАЄ про всі залежності та викликає їх безпосередньо\n",[5228,5514,5516,5519,5521,5523,5525,5527,5530,5532,5534,5536,5539],{"class":5230,"line":5515},21,[5228,5517,5518],{"class":5480},"    await",[5228,5520,5484],{"class":5241},[5228,5522,5112],{"class":5249},[5228,5524,5368],{"class":5259},[5228,5526,5112],{"class":5249},[5228,5528,5529],{"class":5427},"sendConfirmation",[5228,5531,5431],{"class":5249},[5228,5533,5434],{"class":5259},[5228,5535,5442],{"class":5249},[5228,5537,5538],{"class":5259},"order",[5228,5540,5500],{"class":5249},[5228,5542,5544,5546,5548,5550,5552,5554,5557,5559,5561],{"class":5230,"line":5543},22,[5228,5545,5518],{"class":5480},[5228,5547,5484],{"class":5241},[5228,5549,5112],{"class":5249},[5228,5551,5385],{"class":5259},[5228,5553,5112],{"class":5249},[5228,5555,5556],{"class":5427},"decreaseStock",[5228,5558,5431],{"class":5249},[5228,5560,5445],{"class":5259},[5228,5562,5500],{"class":5249},[5228,5564,5566,5568,5570,5572,5574,5576,5579,5581,5583],{"class":5230,"line":5565},23,[5228,5567,5518],{"class":5480},[5228,5569,5484],{"class":5241},[5228,5571,5112],{"class":5249},[5228,5573,5401],{"class":5259},[5228,5575,5112],{"class":5249},[5228,5577,5578],{"class":5427},"trackPurchase",[5228,5580,5431],{"class":5249},[5228,5582,5538],{"class":5259},[5228,5584,5500],{"class":5249},[5228,5586,5588],{"class":5230,"line":5587},24,[5228,5589,5506],{"class":5249},[5228,5591,5593,5596,5598],{"class":5230,"line":5592},25,[5228,5594,5595],{"class":5480},"    return",[5228,5597,5475],{"class":5259},[5228,5599,5269],{"class":5249},[5228,5601,5603],{"class":5230,"line":5602},26,[5228,5604,5413],{"class":5249},[5228,5606,5608],{"class":5230,"line":5607},27,[5228,5609,5610],{"class":5249},"}\n",[5190,5612,5613],{},"Проблеми такої архітектури:",[5615,5616,5617,5641,5651,5660],"ol",{},[5095,5618,5619,5622,5623,5626,5627,5442,5629,5631,5632,5634,5635,5638,5639,5112],{},[5099,5620,5621],{},"Жорсткі залежності:"," ",[5109,5624,5625],{},"OrderService"," повинен знати про існування ",[5109,5628,5266],{},[5109,5630,5282],{}," та ",[5109,5633,5297],{},". Додавання нового сервісу (наприклад, ",[5109,5636,5637],{},"LoyaltyProgramService",") вимагає модифікації ",[5109,5640,5625],{},[5095,5642,5643,5646,5647,5650],{},[5099,5644,5645],{},"Блокуюче виконання:"," Якщо ",[5109,5648,5649],{},"emailService.sendConfirmation()"," триває 2 секунди, користувач чекає завершення створення замовлення протягом цього часу, хоча електронний лист не є критичною частиною транзакції.",[5095,5652,5653,5656,5657,5659],{},[5099,5654,5655],{},"Складність тестування:"," Для unit-тестування ",[5109,5658,5625],{}," потрібно створювати моки всіх трьох залежностей.",[5095,5661,5662,5665],{},[5099,5663,5664],{},"Відсутність розширюваності:"," Неможливо динамічно додати нові обробники замовлень без модифікації основного коду.",[5190,5667,5668,5669,5671,5672,5674],{},"Патерн ",[5099,5670,5101],{}," через ",[5109,5673,5111],{}," вирішує ці проблеми, дозволяючи компонентам взаємодіяти через події без прямих посилань один на одного:",[5219,5676,5678],{"className":5221,"code":5677,"language":5223,"meta":5224,"style":5224},"\u002F\u002F ✅ ПРАВИЛЬНО: Слабке зв'язування через події\nimport { EventEmitter } from 'node:events';\n\ninterface OrderCreatedEvent {\n  orderId: string;\n  userId: string;\n  items: OrderItem[];\n  total: number;\n}\n\nclass OrderService extends EventEmitter {\n  async createOrder(userId: string, items: OrderItem[]): Promise\u003COrder> {\n    const order = await this.saveToDatabase(userId, items);\n    \n    \u002F\u002F Генеруємо подію — OrderService не знає, хто її обробить\n    this.emit('orderCreated', {\n      orderId: order.id,\n      userId,\n      items,\n      total: order.total\n    });\n    \n    return order;\n  }\n}\n\n\u002F\u002F Окремі сервіси ПІДПИСУЮТЬСЯ на події незалежно\nconst orderService = new OrderService();\n\norderService.on('orderCreated', async (event: OrderCreatedEvent) => {\n  await emailService.sendConfirmation(event.userId, event.orderId);\n});\n\norderService.on('orderCreated', async (event: OrderCreatedEvent) => {\n  await inventoryService.decreaseStock(event.items);\n});\n\norderService.on('orderCreated', async (event: OrderCreatedEvent) => {\n  await analyticsService.trackPurchase(event);\n});\n\n\u002F\u002F Додавання нового обробника не вимагає змін у OrderService\norderService.on('orderCreated', async (event: OrderCreatedEvent) => {\n  await loyaltyProgramService.addPoints(event.userId, event.total);\n});\n",[5109,5679,5680,5685,5707,5711,5721,5732,5743,5755,5767,5771,5775,5789,5821,5847,5851,5856,5873,5887,5894,5901,5913,5918,5922,5930,5934,5938,5942,5947,5966,5971,6009,6040,6046,6051,6082,6103,6108,6113,6144,6161,6166,6171,6177,6208,6240],{"__ignoreMap":5224},[5228,5681,5682],{"class":5230,"line":5231},[5228,5683,5684],{"class":5234},"\u002F\u002F ✅ ПРАВИЛЬНО: Слабке зв'язування через події\n",[5228,5686,5687,5690,5693,5695,5698,5701,5705],{"class":5230,"line":5238},[5228,5688,5689],{"class":5480},"import",[5228,5691,5692],{"class":5249}," { ",[5228,5694,5111],{"class":5259},[5228,5696,5697],{"class":5249}," } ",[5228,5699,5700],{"class":5480},"from",[5228,5702,5704],{"class":5703},"sbdoH"," 'node:events'",[5228,5706,5269],{"class":5249},[5228,5708,5709],{"class":5230,"line":5253},[5228,5710,5306],{"emptyLinePlaceholder":5305},[5228,5712,5713,5716,5719],{"class":5230,"line":5272},[5228,5714,5715],{"class":5241},"interface",[5228,5717,5718],{"class":5245}," OrderCreatedEvent",[5228,5720,5250],{"class":5249},[5228,5722,5723,5726,5728,5730],{"class":5230,"line":5287},[5228,5724,5725],{"class":5259},"  orderId",[5228,5727,5263],{"class":5249},[5228,5729,5439],{"class":5245},[5228,5731,5269],{"class":5249},[5228,5733,5734,5737,5739,5741],{"class":5230,"line":5302},[5228,5735,5736],{"class":5259},"  userId",[5228,5738,5263],{"class":5249},[5228,5740,5439],{"class":5245},[5228,5742,5269],{"class":5249},[5228,5744,5745,5748,5750,5752],{"class":5230,"line":5309},[5228,5746,5747],{"class":5259},"  items",[5228,5749,5263],{"class":5249},[5228,5751,5450],{"class":5245},[5228,5753,5754],{"class":5249},"[];\n",[5228,5756,5757,5760,5762,5765],{"class":5230,"line":5318},[5228,5758,5759],{"class":5259},"  total",[5228,5761,5263],{"class":5249},[5228,5763,5764],{"class":5245},"number",[5228,5766,5269],{"class":5249},[5228,5768,5769],{"class":5230,"line":5331},[5228,5770,5610],{"class":5249},[5228,5772,5773],{"class":5230,"line":5343},[5228,5774,5306],{"emptyLinePlaceholder":5305},[5228,5776,5777,5779,5781,5784,5787],{"class":5230,"line":5354},[5228,5778,5242],{"class":5241},[5228,5780,5246],{"class":5245},[5228,5782,5783],{"class":5241}," extends",[5228,5785,5786],{"class":5245}," EventEmitter",[5228,5788,5250],{"class":5249},[5228,5790,5791,5793,5795,5797,5799,5801,5803,5805,5807,5809,5811,5813,5815,5817,5819],{"class":5230,"line":5360},[5228,5792,5424],{"class":5241},[5228,5794,5428],{"class":5427},[5228,5796,5431],{"class":5249},[5228,5798,5434],{"class":5259},[5228,5800,5263],{"class":5249},[5228,5802,5439],{"class":5245},[5228,5804,5442],{"class":5249},[5228,5806,5445],{"class":5259},[5228,5808,5263],{"class":5249},[5228,5810,5450],{"class":5245},[5228,5812,5453],{"class":5249},[5228,5814,5456],{"class":5245},[5228,5816,5459],{"class":5249},[5228,5818,5462],{"class":5245},[5228,5820,5465],{"class":5249},[5228,5822,5823,5825,5827,5829,5831,5833,5835,5837,5839,5841,5843,5845],{"class":5230,"line":5378},[5228,5824,5471],{"class":5241},[5228,5826,5475],{"class":5474},[5228,5828,5371],{"class":5249},[5228,5830,5481],{"class":5480},[5228,5832,5484],{"class":5241},[5228,5834,5112],{"class":5249},[5228,5836,5489],{"class":5427},[5228,5838,5431],{"class":5249},[5228,5840,5434],{"class":5259},[5228,5842,5442],{"class":5249},[5228,5844,5445],{"class":5259},[5228,5846,5500],{"class":5249},[5228,5848,5849],{"class":5230,"line":5394},[5228,5850,5506],{"class":5249},[5228,5852,5853],{"class":5230,"line":5410},[5228,5854,5855],{"class":5234},"    \u002F\u002F Генеруємо подію — OrderService не знає, хто її обробить\n",[5228,5857,5858,5860,5862,5865,5867,5870],{"class":5230,"line":5416},[5228,5859,5363],{"class":5241},[5228,5861,5112],{"class":5249},[5228,5863,5864],{"class":5427},"emit",[5228,5866,5431],{"class":5249},[5228,5868,5869],{"class":5703},"'orderCreated'",[5228,5871,5872],{"class":5249},", {\n",[5228,5874,5875,5878,5880,5882,5885],{"class":5230,"line":5421},[5228,5876,5877],{"class":5259},"      orderId:",[5228,5879,5475],{"class":5259},[5228,5881,5112],{"class":5249},[5228,5883,5884],{"class":5259},"id",[5228,5886,5328],{"class":5249},[5228,5888,5889,5892],{"class":5230,"line":5468},[5228,5890,5891],{"class":5259},"      userId",[5228,5893,5328],{"class":5249},[5228,5895,5896,5899],{"class":5230,"line":5503},[5228,5897,5898],{"class":5259},"      items",[5228,5900,5328],{"class":5249},[5228,5902,5903,5906,5908,5910],{"class":5230,"line":5509},[5228,5904,5905],{"class":5259},"      total:",[5228,5907,5475],{"class":5259},[5228,5909,5112],{"class":5249},[5228,5911,5912],{"class":5259},"total\n",[5228,5914,5915],{"class":5230,"line":5515},[5228,5916,5917],{"class":5249},"    });\n",[5228,5919,5920],{"class":5230,"line":5543},[5228,5921,5506],{"class":5249},[5228,5923,5924,5926,5928],{"class":5230,"line":5565},[5228,5925,5595],{"class":5480},[5228,5927,5475],{"class":5259},[5228,5929,5269],{"class":5249},[5228,5931,5932],{"class":5230,"line":5587},[5228,5933,5413],{"class":5249},[5228,5935,5936],{"class":5230,"line":5592},[5228,5937,5610],{"class":5249},[5228,5939,5940],{"class":5230,"line":5602},[5228,5941,5306],{"emptyLinePlaceholder":5305},[5228,5943,5944],{"class":5230,"line":5607},[5228,5945,5946],{"class":5234},"\u002F\u002F Окремі сервіси ПІДПИСУЮТЬСЯ на події незалежно\n",[5228,5948,5950,5953,5956,5958,5961,5963],{"class":5230,"line":5949},28,[5228,5951,5952],{"class":5241},"const",[5228,5954,5955],{"class":5474}," orderService",[5228,5957,5371],{"class":5249},[5228,5959,5960],{"class":5241},"new",[5228,5962,5246],{"class":5427},[5228,5964,5965],{"class":5249},"();\n",[5228,5967,5969],{"class":5230,"line":5968},29,[5228,5970,5306],{"emptyLinePlaceholder":5305},[5228,5972,5974,5977,5979,5982,5984,5986,5988,5991,5993,5996,5998,6001,6004,6007],{"class":5230,"line":5973},30,[5228,5975,5976],{"class":5259},"orderService",[5228,5978,5112],{"class":5249},[5228,5980,5981],{"class":5427},"on",[5228,5983,5431],{"class":5249},[5228,5985,5869],{"class":5703},[5228,5987,5442],{"class":5249},[5228,5989,5990],{"class":5241},"async",[5228,5992,5102],{"class":5249},[5228,5994,5995],{"class":5259},"event",[5228,5997,5263],{"class":5249},[5228,5999,6000],{"class":5245},"OrderCreatedEvent",[5228,6002,6003],{"class":5249},") ",[5228,6005,6006],{"class":5241},"=>",[5228,6008,5250],{"class":5249},[5228,6010,6012,6015,6017,6019,6021,6023,6025,6027,6029,6031,6033,6035,6038],{"class":5230,"line":6011},31,[5228,6013,6014],{"class":5480},"  await",[5228,6016,5260],{"class":5259},[5228,6018,5112],{"class":5249},[5228,6020,5529],{"class":5427},[5228,6022,5431],{"class":5249},[5228,6024,5995],{"class":5259},[5228,6026,5112],{"class":5249},[5228,6028,5434],{"class":5259},[5228,6030,5442],{"class":5249},[5228,6032,5995],{"class":5259},[5228,6034,5112],{"class":5249},[5228,6036,6037],{"class":5259},"orderId",[5228,6039,5500],{"class":5249},[5228,6041,6043],{"class":5230,"line":6042},32,[5228,6044,6045],{"class":5249},"});\n",[5228,6047,6049],{"class":5230,"line":6048},33,[5228,6050,5306],{"emptyLinePlaceholder":5305},[5228,6052,6054,6056,6058,6060,6062,6064,6066,6068,6070,6072,6074,6076,6078,6080],{"class":5230,"line":6053},34,[5228,6055,5976],{"class":5259},[5228,6057,5112],{"class":5249},[5228,6059,5981],{"class":5427},[5228,6061,5431],{"class":5249},[5228,6063,5869],{"class":5703},[5228,6065,5442],{"class":5249},[5228,6067,5990],{"class":5241},[5228,6069,5102],{"class":5249},[5228,6071,5995],{"class":5259},[5228,6073,5263],{"class":5249},[5228,6075,6000],{"class":5245},[5228,6077,6003],{"class":5249},[5228,6079,6006],{"class":5241},[5228,6081,5250],{"class":5249},[5228,6083,6085,6087,6089,6091,6093,6095,6097,6099,6101],{"class":5230,"line":6084},35,[5228,6086,6014],{"class":5480},[5228,6088,5277],{"class":5259},[5228,6090,5112],{"class":5249},[5228,6092,5556],{"class":5427},[5228,6094,5431],{"class":5249},[5228,6096,5995],{"class":5259},[5228,6098,5112],{"class":5249},[5228,6100,5445],{"class":5259},[5228,6102,5500],{"class":5249},[5228,6104,6106],{"class":5230,"line":6105},36,[5228,6107,6045],{"class":5249},[5228,6109,6111],{"class":5230,"line":6110},37,[5228,6112,5306],{"emptyLinePlaceholder":5305},[5228,6114,6116,6118,6120,6122,6124,6126,6128,6130,6132,6134,6136,6138,6140,6142],{"class":5230,"line":6115},38,[5228,6117,5976],{"class":5259},[5228,6119,5112],{"class":5249},[5228,6121,5981],{"class":5427},[5228,6123,5431],{"class":5249},[5228,6125,5869],{"class":5703},[5228,6127,5442],{"class":5249},[5228,6129,5990],{"class":5241},[5228,6131,5102],{"class":5249},[5228,6133,5995],{"class":5259},[5228,6135,5263],{"class":5249},[5228,6137,6000],{"class":5245},[5228,6139,6003],{"class":5249},[5228,6141,6006],{"class":5241},[5228,6143,5250],{"class":5249},[5228,6145,6147,6149,6151,6153,6155,6157,6159],{"class":5230,"line":6146},39,[5228,6148,6014],{"class":5480},[5228,6150,5292],{"class":5259},[5228,6152,5112],{"class":5249},[5228,6154,5578],{"class":5427},[5228,6156,5431],{"class":5249},[5228,6158,5995],{"class":5259},[5228,6160,5500],{"class":5249},[5228,6162,6164],{"class":5230,"line":6163},40,[5228,6165,6045],{"class":5249},[5228,6167,6169],{"class":5230,"line":6168},41,[5228,6170,5306],{"emptyLinePlaceholder":5305},[5228,6172,6174],{"class":5230,"line":6173},42,[5228,6175,6176],{"class":5234},"\u002F\u002F Додавання нового обробника не вимагає змін у OrderService\n",[5228,6178,6180,6182,6184,6186,6188,6190,6192,6194,6196,6198,6200,6202,6204,6206],{"class":5230,"line":6179},43,[5228,6181,5976],{"class":5259},[5228,6183,5112],{"class":5249},[5228,6185,5981],{"class":5427},[5228,6187,5431],{"class":5249},[5228,6189,5869],{"class":5703},[5228,6191,5442],{"class":5249},[5228,6193,5990],{"class":5241},[5228,6195,5102],{"class":5249},[5228,6197,5995],{"class":5259},[5228,6199,5263],{"class":5249},[5228,6201,6000],{"class":5245},[5228,6203,6003],{"class":5249},[5228,6205,6006],{"class":5241},[5228,6207,5250],{"class":5249},[5228,6209,6211,6213,6216,6218,6221,6223,6225,6227,6229,6231,6233,6235,6238],{"class":5230,"line":6210},44,[5228,6212,6014],{"class":5480},[5228,6214,6215],{"class":5259}," loyaltyProgramService",[5228,6217,5112],{"class":5249},[5228,6219,6220],{"class":5427},"addPoints",[5228,6222,5431],{"class":5249},[5228,6224,5995],{"class":5259},[5228,6226,5112],{"class":5249},[5228,6228,5434],{"class":5259},[5228,6230,5442],{"class":5249},[5228,6232,5995],{"class":5259},[5228,6234,5112],{"class":5249},[5228,6236,6237],{"class":5259},"total",[5228,6239,5500],{"class":5249},[5228,6241,6243],{"class":5230,"line":6242},45,[5228,6244,6045],{"class":5249},[5190,6246,6247,6248,6250],{},"Тепер ",[5109,6249,5625],{}," не залежить від конкретних реалізацій сервісів — він просто повідомляє про створення замовлення через подію. Будь-який модуль може підписатися на цю подію та виконати власну логіку.",[6252,6253,6254,6255,6258],"note",{},"Патерн Observer є одним із фундаментальних патернів проєктування (",[5104,6256,6257],{},"Gang of Four Design Patterns","). Він визначає залежність «один-до-багатьох» між об'єктами: коли стан одного об'єкта змінюється, всі його залежні об'єкти повідомляються автоматично.",[5185,6260,6262],{"id":6261},"клас-eventemitter-основи-роботи-з-подіями","Клас EventEmitter: основи роботи з подіями",[5190,6264,6265,6266,6268,6269,6272],{},"Клас ",[5109,6267,5111],{}," є частиною стандартного модуля ",[5109,6270,6271],{},"events"," у Node.js та надає API для реалізації подієвої моделі:",[5219,6274,6276],{"className":5221,"code":6275,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\n\u002F\u002F Підписка на подію 'data'\nemitter.on('data', (message: string) => {\n  console.log('Отримано повідомлення:', message);\n});\n\n\u002F\u002F Генерація події 'data' з передачею даних\nemitter.emit('data', 'Hello, EventEmitter!');\n\u002F\u002F Вивід: Отримано повідомлення: Hello, EventEmitter!\n\nemitter.emit('data', 'Друге повідомлення');\n\u002F\u002F Вивід: Отримано повідомлення: Друге повідомлення\n",[5109,6277,6278,6294,6298,6313,6317,6322,6352,6373,6377,6381,6386,6405,6410,6414,6433],{"__ignoreMap":5224},[5228,6279,6280,6282,6284,6286,6288,6290,6292],{"class":5230,"line":5231},[5228,6281,5689],{"class":5480},[5228,6283,5692],{"class":5249},[5228,6285,5111],{"class":5259},[5228,6287,5697],{"class":5249},[5228,6289,5700],{"class":5480},[5228,6291,5704],{"class":5703},[5228,6293,5269],{"class":5249},[5228,6295,6296],{"class":5230,"line":5238},[5228,6297,5306],{"emptyLinePlaceholder":5305},[5228,6299,6300,6302,6305,6307,6309,6311],{"class":5230,"line":5253},[5228,6301,5952],{"class":5241},[5228,6303,6304],{"class":5474}," emitter",[5228,6306,5371],{"class":5249},[5228,6308,5960],{"class":5241},[5228,6310,5786],{"class":5427},[5228,6312,5965],{"class":5249},[5228,6314,6315],{"class":5230,"line":5272},[5228,6316,5306],{"emptyLinePlaceholder":5305},[5228,6318,6319],{"class":5230,"line":5287},[5228,6320,6321],{"class":5234},"\u002F\u002F Підписка на подію 'data'\n",[5228,6323,6324,6327,6329,6331,6333,6336,6339,6342,6344,6346,6348,6350],{"class":5230,"line":5302},[5228,6325,6326],{"class":5259},"emitter",[5228,6328,5112],{"class":5249},[5228,6330,5981],{"class":5427},[5228,6332,5431],{"class":5249},[5228,6334,6335],{"class":5703},"'data'",[5228,6337,6338],{"class":5249},", (",[5228,6340,6341],{"class":5259},"message",[5228,6343,5263],{"class":5249},[5228,6345,5439],{"class":5245},[5228,6347,6003],{"class":5249},[5228,6349,6006],{"class":5241},[5228,6351,5250],{"class":5249},[5228,6353,6354,6357,6359,6362,6364,6367,6369,6371],{"class":5230,"line":5309},[5228,6355,6356],{"class":5259},"  console",[5228,6358,5112],{"class":5249},[5228,6360,6361],{"class":5427},"log",[5228,6363,5431],{"class":5249},[5228,6365,6366],{"class":5703},"'Отримано повідомлення:'",[5228,6368,5442],{"class":5249},[5228,6370,6341],{"class":5259},[5228,6372,5500],{"class":5249},[5228,6374,6375],{"class":5230,"line":5318},[5228,6376,6045],{"class":5249},[5228,6378,6379],{"class":5230,"line":5331},[5228,6380,5306],{"emptyLinePlaceholder":5305},[5228,6382,6383],{"class":5230,"line":5343},[5228,6384,6385],{"class":5234},"\u002F\u002F Генерація події 'data' з передачею даних\n",[5228,6387,6388,6390,6392,6394,6396,6398,6400,6403],{"class":5230,"line":5354},[5228,6389,6326],{"class":5259},[5228,6391,5112],{"class":5249},[5228,6393,5864],{"class":5427},[5228,6395,5431],{"class":5249},[5228,6397,6335],{"class":5703},[5228,6399,5442],{"class":5249},[5228,6401,6402],{"class":5703},"'Hello, EventEmitter!'",[5228,6404,5500],{"class":5249},[5228,6406,6407],{"class":5230,"line":5360},[5228,6408,6409],{"class":5234},"\u002F\u002F Вивід: Отримано повідомлення: Hello, EventEmitter!\n",[5228,6411,6412],{"class":5230,"line":5378},[5228,6413,5306],{"emptyLinePlaceholder":5305},[5228,6415,6416,6418,6420,6422,6424,6426,6428,6431],{"class":5230,"line":5394},[5228,6417,6326],{"class":5259},[5228,6419,5112],{"class":5249},[5228,6421,5864],{"class":5427},[5228,6423,5431],{"class":5249},[5228,6425,6335],{"class":5703},[5228,6427,5442],{"class":5249},[5228,6429,6430],{"class":5703},"'Друге повідомлення'",[5228,6432,5500],{"class":5249},[5228,6434,6435],{"class":5230,"line":5410},[5228,6436,6437],{"class":5234},"\u002F\u002F Вивід: Отримано повідомлення: Друге повідомлення\n",[5190,6439,6440],{},"Ключові методи API:",[6442,6443,6445],"h3",{"id":6444},"oneventname-listener-підписка-на-подію","on(eventName, listener): підписка на подію",[5190,6447,6448,6449,6452,6453,6456],{},"Реєструє слухача (",[5104,6450,6451],{},"listener","), який буде викликатися ",[5099,6454,6455],{},"кожного разу",", коли подія генерується:",[5219,6458,6460],{"className":5221,"code":6459,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\nfunction handleConnection(clientId: string): void {\n  console.log(`Клієнт підключився: ${clientId}`);\n}\n\nemitter.on('connection', handleConnection);\n\nemitter.emit('connection', 'client-001'); \u002F\u002F Вивід: Клієнт підключився: client-001\nemitter.emit('connection', 'client-002'); \u002F\u002F Вивід: Клієнт підключився: client-002\nemitter.emit('connection', 'client-003'); \u002F\u002F Вивід: Клієнт підключився: client-003\n",[5109,6461,6462,6478,6482,6496,6500,6525,6551,6555,6559,6579,6583,6606,6628],{"__ignoreMap":5224},[5228,6463,6464,6466,6468,6470,6472,6474,6476],{"class":5230,"line":5231},[5228,6465,5689],{"class":5480},[5228,6467,5692],{"class":5249},[5228,6469,5111],{"class":5259},[5228,6471,5697],{"class":5249},[5228,6473,5700],{"class":5480},[5228,6475,5704],{"class":5703},[5228,6477,5269],{"class":5249},[5228,6479,6480],{"class":5230,"line":5238},[5228,6481,5306],{"emptyLinePlaceholder":5305},[5228,6483,6484,6486,6488,6490,6492,6494],{"class":5230,"line":5253},[5228,6485,5952],{"class":5241},[5228,6487,6304],{"class":5474},[5228,6489,5371],{"class":5249},[5228,6491,5960],{"class":5241},[5228,6493,5786],{"class":5427},[5228,6495,5965],{"class":5249},[5228,6497,6498],{"class":5230,"line":5272},[5228,6499,5306],{"emptyLinePlaceholder":5305},[5228,6501,6502,6505,6508,6510,6513,6515,6517,6520,6523],{"class":5230,"line":5287},[5228,6503,6504],{"class":5241},"function",[5228,6506,6507],{"class":5427}," handleConnection",[5228,6509,5431],{"class":5249},[5228,6511,6512],{"class":5259},"clientId",[5228,6514,5263],{"class":5249},[5228,6516,5439],{"class":5245},[5228,6518,6519],{"class":5249},"): ",[5228,6521,6522],{"class":5245},"void",[5228,6524,5250],{"class":5249},[5228,6526,6527,6529,6531,6533,6535,6538,6541,6543,6546,6549],{"class":5230,"line":5302},[5228,6528,6356],{"class":5259},[5228,6530,5112],{"class":5249},[5228,6532,6361],{"class":5427},[5228,6534,5431],{"class":5249},[5228,6536,6537],{"class":5703},"`Клієнт підключився: ",[5228,6539,6540],{"class":5241},"${",[5228,6542,6512],{"class":5259},[5228,6544,6545],{"class":5241},"}",[5228,6547,6548],{"class":5703},"`",[5228,6550,5500],{"class":5249},[5228,6552,6553],{"class":5230,"line":5309},[5228,6554,5610],{"class":5249},[5228,6556,6557],{"class":5230,"line":5318},[5228,6558,5306],{"emptyLinePlaceholder":5305},[5228,6560,6561,6563,6565,6567,6569,6572,6574,6577],{"class":5230,"line":5331},[5228,6562,6326],{"class":5259},[5228,6564,5112],{"class":5249},[5228,6566,5981],{"class":5427},[5228,6568,5431],{"class":5249},[5228,6570,6571],{"class":5703},"'connection'",[5228,6573,5442],{"class":5249},[5228,6575,6576],{"class":5259},"handleConnection",[5228,6578,5500],{"class":5249},[5228,6580,6581],{"class":5230,"line":5343},[5228,6582,5306],{"emptyLinePlaceholder":5305},[5228,6584,6585,6587,6589,6591,6593,6595,6597,6600,6603],{"class":5230,"line":5354},[5228,6586,6326],{"class":5259},[5228,6588,5112],{"class":5249},[5228,6590,5864],{"class":5427},[5228,6592,5431],{"class":5249},[5228,6594,6571],{"class":5703},[5228,6596,5442],{"class":5249},[5228,6598,6599],{"class":5703},"'client-001'",[5228,6601,6602],{"class":5249},"); ",[5228,6604,6605],{"class":5234},"\u002F\u002F Вивід: Клієнт підключився: client-001\n",[5228,6607,6608,6610,6612,6614,6616,6618,6620,6623,6625],{"class":5230,"line":5360},[5228,6609,6326],{"class":5259},[5228,6611,5112],{"class":5249},[5228,6613,5864],{"class":5427},[5228,6615,5431],{"class":5249},[5228,6617,6571],{"class":5703},[5228,6619,5442],{"class":5249},[5228,6621,6622],{"class":5703},"'client-002'",[5228,6624,6602],{"class":5249},[5228,6626,6627],{"class":5234},"\u002F\u002F Вивід: Клієнт підключився: client-002\n",[5228,6629,6630,6632,6634,6636,6638,6640,6642,6645,6647],{"class":5230,"line":5378},[5228,6631,6326],{"class":5259},[5228,6633,5112],{"class":5249},[5228,6635,5864],{"class":5427},[5228,6637,5431],{"class":5249},[5228,6639,6571],{"class":5703},[5228,6641,5442],{"class":5249},[5228,6643,6644],{"class":5703},"'client-003'",[5228,6646,6602],{"class":5249},[5228,6648,6649],{"class":5234},"\u002F\u002F Вивід: Клієнт підключився: client-003\n",[5190,6651,6652],{},"Можна додати кілька слухачів для однієї події — вони викликаються у порядку реєстрації:",[5219,6654,6656],{"className":5221,"code":6655,"language":5223,"meta":5224,"style":5224},"emitter.on('message', (text: string) => {\n  console.log('Обробник 1:', text);\n});\n\nemitter.on('message', (text: string) => {\n  console.log('Обробник 2:', text);\n});\n\nemitter.emit('message', 'Тестове повідомлення');\n\u002F\u002F Вивід:\n\u002F\u002F Обробник 1: Тестове повідомлення\n\u002F\u002F Обробник 2: Тестове повідомлення\n",[5109,6657,6658,6686,6705,6709,6713,6739,6758,6762,6766,6785,6790,6795],{"__ignoreMap":5224},[5228,6659,6660,6662,6664,6666,6668,6671,6673,6676,6678,6680,6682,6684],{"class":5230,"line":5231},[5228,6661,6326],{"class":5259},[5228,6663,5112],{"class":5249},[5228,6665,5981],{"class":5427},[5228,6667,5431],{"class":5249},[5228,6669,6670],{"class":5703},"'message'",[5228,6672,6338],{"class":5249},[5228,6674,6675],{"class":5259},"text",[5228,6677,5263],{"class":5249},[5228,6679,5439],{"class":5245},[5228,6681,6003],{"class":5249},[5228,6683,6006],{"class":5241},[5228,6685,5250],{"class":5249},[5228,6687,6688,6690,6692,6694,6696,6699,6701,6703],{"class":5230,"line":5238},[5228,6689,6356],{"class":5259},[5228,6691,5112],{"class":5249},[5228,6693,6361],{"class":5427},[5228,6695,5431],{"class":5249},[5228,6697,6698],{"class":5703},"'Обробник 1:'",[5228,6700,5442],{"class":5249},[5228,6702,6675],{"class":5259},[5228,6704,5500],{"class":5249},[5228,6706,6707],{"class":5230,"line":5253},[5228,6708,6045],{"class":5249},[5228,6710,6711],{"class":5230,"line":5272},[5228,6712,5306],{"emptyLinePlaceholder":5305},[5228,6714,6715,6717,6719,6721,6723,6725,6727,6729,6731,6733,6735,6737],{"class":5230,"line":5287},[5228,6716,6326],{"class":5259},[5228,6718,5112],{"class":5249},[5228,6720,5981],{"class":5427},[5228,6722,5431],{"class":5249},[5228,6724,6670],{"class":5703},[5228,6726,6338],{"class":5249},[5228,6728,6675],{"class":5259},[5228,6730,5263],{"class":5249},[5228,6732,5439],{"class":5245},[5228,6734,6003],{"class":5249},[5228,6736,6006],{"class":5241},[5228,6738,5250],{"class":5249},[5228,6740,6741,6743,6745,6747,6749,6752,6754,6756],{"class":5230,"line":5302},[5228,6742,6356],{"class":5259},[5228,6744,5112],{"class":5249},[5228,6746,6361],{"class":5427},[5228,6748,5431],{"class":5249},[5228,6750,6751],{"class":5703},"'Обробник 2:'",[5228,6753,5442],{"class":5249},[5228,6755,6675],{"class":5259},[5228,6757,5500],{"class":5249},[5228,6759,6760],{"class":5230,"line":5309},[5228,6761,6045],{"class":5249},[5228,6763,6764],{"class":5230,"line":5318},[5228,6765,5306],{"emptyLinePlaceholder":5305},[5228,6767,6768,6770,6772,6774,6776,6778,6780,6783],{"class":5230,"line":5331},[5228,6769,6326],{"class":5259},[5228,6771,5112],{"class":5249},[5228,6773,5864],{"class":5427},[5228,6775,5431],{"class":5249},[5228,6777,6670],{"class":5703},[5228,6779,5442],{"class":5249},[5228,6781,6782],{"class":5703},"'Тестове повідомлення'",[5228,6784,5500],{"class":5249},[5228,6786,6787],{"class":5230,"line":5343},[5228,6788,6789],{"class":5234},"\u002F\u002F Вивід:\n",[5228,6791,6792],{"class":5230,"line":5354},[5228,6793,6794],{"class":5234},"\u002F\u002F Обробник 1: Тестове повідомлення\n",[5228,6796,6797],{"class":5230,"line":5360},[5228,6798,6799],{"class":5234},"\u002F\u002F Обробник 2: Тестове повідомлення\n",[6801,6802,6803,6804,6807,6808,6811,6812,6814],"tip",{},"Метод ",[5109,6805,6806],{},"on()"," має синонім ",[5109,6809,6810],{},"addListener()"," — обидва методи працюють ідентично. У сучасному коді прийнято використовувати ",[5109,6813,6806],{}," як більш лаконічну форму.",[6442,6816,6818],{"id":6817},"onceeventname-listener-одноразова-підписка","once(eventName, listener): одноразова підписка",[5190,6820,6821,6822,6825],{},"Реєструє слухача, який виконається ",[5099,6823,6824],{},"лише один раз",", після чого автоматично відписується:",[5219,6827,6829],{"className":5221,"code":6828,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\nemitter.once('startup', () => {\n  console.log('Сервер ініціалізовано');\n});\n\nemitter.emit('startup'); \u002F\u002F Вивід: Сервер ініціалізовано\nemitter.emit('startup'); \u002F\u002F Нічого не виведе — слухач вже відпрацював\nemitter.emit('startup'); \u002F\u002F Нічого не виведе\n",[5109,6830,6831,6847,6851,6865,6869,6890,6905,6909,6913,6930,6947],{"__ignoreMap":5224},[5228,6832,6833,6835,6837,6839,6841,6843,6845],{"class":5230,"line":5231},[5228,6834,5689],{"class":5480},[5228,6836,5692],{"class":5249},[5228,6838,5111],{"class":5259},[5228,6840,5697],{"class":5249},[5228,6842,5700],{"class":5480},[5228,6844,5704],{"class":5703},[5228,6846,5269],{"class":5249},[5228,6848,6849],{"class":5230,"line":5238},[5228,6850,5306],{"emptyLinePlaceholder":5305},[5228,6852,6853,6855,6857,6859,6861,6863],{"class":5230,"line":5253},[5228,6854,5952],{"class":5241},[5228,6856,6304],{"class":5474},[5228,6858,5371],{"class":5249},[5228,6860,5960],{"class":5241},[5228,6862,5786],{"class":5427},[5228,6864,5965],{"class":5249},[5228,6866,6867],{"class":5230,"line":5272},[5228,6868,5306],{"emptyLinePlaceholder":5305},[5228,6870,6871,6873,6875,6878,6880,6883,6886,6888],{"class":5230,"line":5287},[5228,6872,6326],{"class":5259},[5228,6874,5112],{"class":5249},[5228,6876,6877],{"class":5427},"once",[5228,6879,5431],{"class":5249},[5228,6881,6882],{"class":5703},"'startup'",[5228,6884,6885],{"class":5249},", () ",[5228,6887,6006],{"class":5241},[5228,6889,5250],{"class":5249},[5228,6891,6892,6894,6896,6898,6900,6903],{"class":5230,"line":5302},[5228,6893,6356],{"class":5259},[5228,6895,5112],{"class":5249},[5228,6897,6361],{"class":5427},[5228,6899,5431],{"class":5249},[5228,6901,6902],{"class":5703},"'Сервер ініціалізовано'",[5228,6904,5500],{"class":5249},[5228,6906,6907],{"class":5230,"line":5309},[5228,6908,6045],{"class":5249},[5228,6910,6911],{"class":5230,"line":5318},[5228,6912,5306],{"emptyLinePlaceholder":5305},[5228,6914,6915,6917,6919,6921,6923,6925,6927],{"class":5230,"line":5331},[5228,6916,6326],{"class":5259},[5228,6918,5112],{"class":5249},[5228,6920,5864],{"class":5427},[5228,6922,5431],{"class":5249},[5228,6924,6882],{"class":5703},[5228,6926,6602],{"class":5249},[5228,6928,6929],{"class":5234},"\u002F\u002F Вивід: Сервер ініціалізовано\n",[5228,6931,6932,6934,6936,6938,6940,6942,6944],{"class":5230,"line":5343},[5228,6933,6326],{"class":5259},[5228,6935,5112],{"class":5249},[5228,6937,5864],{"class":5427},[5228,6939,5431],{"class":5249},[5228,6941,6882],{"class":5703},[5228,6943,6602],{"class":5249},[5228,6945,6946],{"class":5234},"\u002F\u002F Нічого не виведе — слухач вже відпрацював\n",[5228,6948,6949,6951,6953,6955,6957,6959,6961],{"class":5230,"line":5354},[5228,6950,6326],{"class":5259},[5228,6952,5112],{"class":5249},[5228,6954,5864],{"class":5427},[5228,6956,5431],{"class":5249},[5228,6958,6882],{"class":5703},[5228,6960,6602],{"class":5249},[5228,6962,6963],{"class":5234},"\u002F\u002F Нічого не виведе\n",[5190,6965,6966],{},"Це корисно для обробки подій, що мають статися один раз (завершення запуску, перше з'єднання, завантаження конфігурації):",[5219,6968,6970],{"className":5221,"code":6969,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\nimport { createServer } from 'node:http';\n\nconst serverEvents = new EventEmitter();\n\nserverEvents.once('firstRequest', () => {\n  console.log('Перший HTTP-запит оброблено. Система прогріта.');\n});\n\nconst server = createServer((req, res) => {\n  serverEvents.emit('firstRequest');\n  res.end('OK');\n});\n\nserver.listen(3000);\n",[5109,6971,6972,6988,7006,7010,7025,7029,7049,7064,7068,7072,7100,7115,7132,7136,7140],{"__ignoreMap":5224},[5228,6973,6974,6976,6978,6980,6982,6984,6986],{"class":5230,"line":5231},[5228,6975,5689],{"class":5480},[5228,6977,5692],{"class":5249},[5228,6979,5111],{"class":5259},[5228,6981,5697],{"class":5249},[5228,6983,5700],{"class":5480},[5228,6985,5704],{"class":5703},[5228,6987,5269],{"class":5249},[5228,6989,6990,6992,6994,6997,6999,7001,7004],{"class":5230,"line":5238},[5228,6991,5689],{"class":5480},[5228,6993,5692],{"class":5249},[5228,6995,6996],{"class":5259},"createServer",[5228,6998,5697],{"class":5249},[5228,7000,5700],{"class":5480},[5228,7002,7003],{"class":5703}," 'node:http'",[5228,7005,5269],{"class":5249},[5228,7007,7008],{"class":5230,"line":5253},[5228,7009,5306],{"emptyLinePlaceholder":5305},[5228,7011,7012,7014,7017,7019,7021,7023],{"class":5230,"line":5272},[5228,7013,5952],{"class":5241},[5228,7015,7016],{"class":5474}," serverEvents",[5228,7018,5371],{"class":5249},[5228,7020,5960],{"class":5241},[5228,7022,5786],{"class":5427},[5228,7024,5965],{"class":5249},[5228,7026,7027],{"class":5230,"line":5287},[5228,7028,5306],{"emptyLinePlaceholder":5305},[5228,7030,7031,7034,7036,7038,7040,7043,7045,7047],{"class":5230,"line":5302},[5228,7032,7033],{"class":5259},"serverEvents",[5228,7035,5112],{"class":5249},[5228,7037,6877],{"class":5427},[5228,7039,5431],{"class":5249},[5228,7041,7042],{"class":5703},"'firstRequest'",[5228,7044,6885],{"class":5249},[5228,7046,6006],{"class":5241},[5228,7048,5250],{"class":5249},[5228,7050,7051,7053,7055,7057,7059,7062],{"class":5230,"line":5309},[5228,7052,6356],{"class":5259},[5228,7054,5112],{"class":5249},[5228,7056,6361],{"class":5427},[5228,7058,5431],{"class":5249},[5228,7060,7061],{"class":5703},"'Перший HTTP-запит оброблено. Система прогріта.'",[5228,7063,5500],{"class":5249},[5228,7065,7066],{"class":5230,"line":5318},[5228,7067,6045],{"class":5249},[5228,7069,7070],{"class":5230,"line":5331},[5228,7071,5306],{"emptyLinePlaceholder":5305},[5228,7073,7074,7076,7079,7081,7083,7086,7089,7091,7094,7096,7098],{"class":5230,"line":5343},[5228,7075,5952],{"class":5241},[5228,7077,7078],{"class":5474}," server",[5228,7080,5371],{"class":5249},[5228,7082,6996],{"class":5427},[5228,7084,7085],{"class":5249},"((",[5228,7087,7088],{"class":5259},"req",[5228,7090,5442],{"class":5249},[5228,7092,7093],{"class":5259},"res",[5228,7095,6003],{"class":5249},[5228,7097,6006],{"class":5241},[5228,7099,5250],{"class":5249},[5228,7101,7102,7105,7107,7109,7111,7113],{"class":5230,"line":5354},[5228,7103,7104],{"class":5259},"  serverEvents",[5228,7106,5112],{"class":5249},[5228,7108,5864],{"class":5427},[5228,7110,5431],{"class":5249},[5228,7112,7042],{"class":5703},[5228,7114,5500],{"class":5249},[5228,7116,7117,7120,7122,7125,7127,7130],{"class":5230,"line":5360},[5228,7118,7119],{"class":5259},"  res",[5228,7121,5112],{"class":5249},[5228,7123,7124],{"class":5427},"end",[5228,7126,5431],{"class":5249},[5228,7128,7129],{"class":5703},"'OK'",[5228,7131,5500],{"class":5249},[5228,7133,7134],{"class":5230,"line":5378},[5228,7135,6045],{"class":5249},[5228,7137,7138],{"class":5230,"line":5394},[5228,7139,5306],{"emptyLinePlaceholder":5305},[5228,7141,7142,7145,7147,7150,7152,7156],{"class":5230,"line":5410},[5228,7143,7144],{"class":5259},"server",[5228,7146,5112],{"class":5249},[5228,7148,7149],{"class":5427},"listen",[5228,7151,5431],{"class":5249},[5228,7153,7155],{"class":7154},"sJj4R","3000",[5228,7157,5500],{"class":5249},[6442,7159,7161],{"id":7160},"emiteventname-args-генерація-події","emit(eventName, ...args): генерація події",[5190,7163,7164],{},"Викликає всі зареєстровані слухачі події у порядку їх додавання, передаючи їм аргументи:",[5219,7166,7168],{"className":5221,"code":7167,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\nemitter.on('userRegistered', (userId: string, email: string, timestamp: Date) => {\n  console.log(`Користувач ${userId} зареєстрований`);\n  console.log(`Email: ${email}`);\n  console.log(`Час: ${timestamp.toISOString()}`);\n});\n\nemitter.emit('userRegistered', 'user-42', 'user@example.com', new Date());\n\u002F\u002F Вивід:\n\u002F\u002F Користувач user-42 зареєстрований\n\u002F\u002F Email: user@example.com\n\u002F\u002F Час: 2026-09-03T10:30:00.000Z\n",[5109,7169,7170,7186,7190,7204,7208,7254,7278,7301,7333,7337,7341,7373,7377,7382,7387],{"__ignoreMap":5224},[5228,7171,7172,7174,7176,7178,7180,7182,7184],{"class":5230,"line":5231},[5228,7173,5689],{"class":5480},[5228,7175,5692],{"class":5249},[5228,7177,5111],{"class":5259},[5228,7179,5697],{"class":5249},[5228,7181,5700],{"class":5480},[5228,7183,5704],{"class":5703},[5228,7185,5269],{"class":5249},[5228,7187,7188],{"class":5230,"line":5238},[5228,7189,5306],{"emptyLinePlaceholder":5305},[5228,7191,7192,7194,7196,7198,7200,7202],{"class":5230,"line":5253},[5228,7193,5952],{"class":5241},[5228,7195,6304],{"class":5474},[5228,7197,5371],{"class":5249},[5228,7199,5960],{"class":5241},[5228,7201,5786],{"class":5427},[5228,7203,5965],{"class":5249},[5228,7205,7206],{"class":5230,"line":5272},[5228,7207,5306],{"emptyLinePlaceholder":5305},[5228,7209,7210,7212,7214,7216,7218,7221,7223,7225,7227,7229,7231,7234,7236,7238,7240,7243,7245,7248,7250,7252],{"class":5230,"line":5287},[5228,7211,6326],{"class":5259},[5228,7213,5112],{"class":5249},[5228,7215,5981],{"class":5427},[5228,7217,5431],{"class":5249},[5228,7219,7220],{"class":5703},"'userRegistered'",[5228,7222,6338],{"class":5249},[5228,7224,5434],{"class":5259},[5228,7226,5263],{"class":5249},[5228,7228,5439],{"class":5245},[5228,7230,5442],{"class":5249},[5228,7232,7233],{"class":5259},"email",[5228,7235,5263],{"class":5249},[5228,7237,5439],{"class":5245},[5228,7239,5442],{"class":5249},[5228,7241,7242],{"class":5259},"timestamp",[5228,7244,5263],{"class":5249},[5228,7246,7247],{"class":5245},"Date",[5228,7249,6003],{"class":5249},[5228,7251,6006],{"class":5241},[5228,7253,5250],{"class":5249},[5228,7255,7256,7258,7260,7262,7264,7267,7269,7271,7273,7276],{"class":5230,"line":5302},[5228,7257,6356],{"class":5259},[5228,7259,5112],{"class":5249},[5228,7261,6361],{"class":5427},[5228,7263,5431],{"class":5249},[5228,7265,7266],{"class":5703},"`Користувач ",[5228,7268,6540],{"class":5241},[5228,7270,5434],{"class":5259},[5228,7272,6545],{"class":5241},[5228,7274,7275],{"class":5703}," зареєстрований`",[5228,7277,5500],{"class":5249},[5228,7279,7280,7282,7284,7286,7288,7291,7293,7295,7297,7299],{"class":5230,"line":5309},[5228,7281,6356],{"class":5259},[5228,7283,5112],{"class":5249},[5228,7285,6361],{"class":5427},[5228,7287,5431],{"class":5249},[5228,7289,7290],{"class":5703},"`Email: ",[5228,7292,6540],{"class":5241},[5228,7294,7233],{"class":5259},[5228,7296,6545],{"class":5241},[5228,7298,6548],{"class":5703},[5228,7300,5500],{"class":5249},[5228,7302,7303,7305,7307,7309,7311,7314,7316,7318,7321,7324,7327,7329,7331],{"class":5230,"line":5318},[5228,7304,6356],{"class":5259},[5228,7306,5112],{"class":5249},[5228,7308,6361],{"class":5427},[5228,7310,5431],{"class":5249},[5228,7312,7313],{"class":5703},"`Час: ",[5228,7315,6540],{"class":5241},[5228,7317,7242],{"class":5259},[5228,7319,5112],{"class":7320},"sD7JJ",[5228,7322,7323],{"class":5427},"toISOString",[5228,7325,7326],{"class":7320},"()",[5228,7328,6545],{"class":5241},[5228,7330,6548],{"class":5703},[5228,7332,5500],{"class":5249},[5228,7334,7335],{"class":5230,"line":5331},[5228,7336,6045],{"class":5249},[5228,7338,7339],{"class":5230,"line":5343},[5228,7340,5306],{"emptyLinePlaceholder":5305},[5228,7342,7343,7345,7347,7349,7351,7353,7355,7358,7360,7363,7365,7367,7370],{"class":5230,"line":5354},[5228,7344,6326],{"class":5259},[5228,7346,5112],{"class":5249},[5228,7348,5864],{"class":5427},[5228,7350,5431],{"class":5249},[5228,7352,7220],{"class":5703},[5228,7354,5442],{"class":5249},[5228,7356,7357],{"class":5703},"'user-42'",[5228,7359,5442],{"class":5249},[5228,7361,7362],{"class":5703},"'user@example.com'",[5228,7364,5442],{"class":5249},[5228,7366,5960],{"class":5241},[5228,7368,7369],{"class":5427}," Date",[5228,7371,7372],{"class":5249},"());\n",[5228,7374,7375],{"class":5230,"line":5360},[5228,7376,6789],{"class":5234},[5228,7378,7379],{"class":5230,"line":5378},[5228,7380,7381],{"class":5234},"\u002F\u002F Користувач user-42 зареєстрований\n",[5228,7383,7384],{"class":5230,"line":5394},[5228,7385,7386],{"class":5234},"\u002F\u002F Email: user@example.com\n",[5228,7388,7389],{"class":5230,"line":5410},[5228,7390,7391],{"class":5234},"\u002F\u002F Час: 2026-09-03T10:30:00.000Z\n",[5190,7393,6803,7394,7397,7398,7401,7402,7405],{},[5109,7395,7396],{},"emit()"," повертає ",[5109,7399,7400],{},"true",", якщо подія мала слухачів, та ",[5109,7403,7404],{},"false",", якщо жоден слухач не був зареєстрований:",[5219,7407,7409],{"className":5221,"code":7408,"language":5223,"meta":5224,"style":5224},"const emitter = new EventEmitter();\n\nconst hasListeners = emitter.emit('unknownEvent', 'data');\nconsole.log('Подія мала слухачів:', hasListeners); \u002F\u002F false\n\nemitter.on('knownEvent', () => {});\nconst hasListeners2 = emitter.emit('knownEvent');\nconsole.log('Подія мала слухачів:', hasListeners2); \u002F\u002F true\n",[5109,7410,7411,7425,7429,7455,7479,7483,7503,7524],{"__ignoreMap":5224},[5228,7412,7413,7415,7417,7419,7421,7423],{"class":5230,"line":5231},[5228,7414,5952],{"class":5241},[5228,7416,6304],{"class":5474},[5228,7418,5371],{"class":5249},[5228,7420,5960],{"class":5241},[5228,7422,5786],{"class":5427},[5228,7424,5965],{"class":5249},[5228,7426,7427],{"class":5230,"line":5238},[5228,7428,5306],{"emptyLinePlaceholder":5305},[5228,7430,7431,7433,7436,7438,7440,7442,7444,7446,7449,7451,7453],{"class":5230,"line":5253},[5228,7432,5952],{"class":5241},[5228,7434,7435],{"class":5474}," hasListeners",[5228,7437,5371],{"class":5249},[5228,7439,6326],{"class":5259},[5228,7441,5112],{"class":5249},[5228,7443,5864],{"class":5427},[5228,7445,5431],{"class":5249},[5228,7447,7448],{"class":5703},"'unknownEvent'",[5228,7450,5442],{"class":5249},[5228,7452,6335],{"class":5703},[5228,7454,5500],{"class":5249},[5228,7456,7457,7460,7462,7464,7466,7469,7471,7474,7476],{"class":5230,"line":5272},[5228,7458,7459],{"class":5259},"console",[5228,7461,5112],{"class":5249},[5228,7463,6361],{"class":5427},[5228,7465,5431],{"class":5249},[5228,7467,7468],{"class":5703},"'Подія мала слухачів:'",[5228,7470,5442],{"class":5249},[5228,7472,7473],{"class":5259},"hasListeners",[5228,7475,6602],{"class":5249},[5228,7477,7478],{"class":5234},"\u002F\u002F false\n",[5228,7480,7481],{"class":5230,"line":5287},[5228,7482,5306],{"emptyLinePlaceholder":5305},[5228,7484,7485,7487,7489,7491,7493,7496,7498,7500],{"class":5230,"line":5302},[5228,7486,6326],{"class":5259},[5228,7488,5112],{"class":5249},[5228,7490,5981],{"class":5427},[5228,7492,5431],{"class":5249},[5228,7494,7495],{"class":5703},"'knownEvent'",[5228,7497,6885],{"class":5249},[5228,7499,6006],{"class":5241},[5228,7501,7502],{"class":5249}," {});\n",[5228,7504,7505,7507,7510,7512,7514,7516,7518,7520,7522],{"class":5230,"line":5309},[5228,7506,5952],{"class":5241},[5228,7508,7509],{"class":5474}," hasListeners2",[5228,7511,5371],{"class":5249},[5228,7513,6326],{"class":5259},[5228,7515,5112],{"class":5249},[5228,7517,5864],{"class":5427},[5228,7519,5431],{"class":5249},[5228,7521,7495],{"class":5703},[5228,7523,5500],{"class":5249},[5228,7525,7526,7528,7530,7532,7534,7536,7538,7541,7543],{"class":5230,"line":5318},[5228,7527,7459],{"class":5259},[5228,7529,5112],{"class":5249},[5228,7531,6361],{"class":5427},[5228,7533,5431],{"class":5249},[5228,7535,7468],{"class":5703},[5228,7537,5442],{"class":5249},[5228,7539,7540],{"class":5259},"hasListeners2",[5228,7542,6602],{"class":5249},[5228,7544,7545],{"class":5234},"\u002F\u002F true\n",[7547,7548,7549,7550,7553,7554,7556,7557,7559],"warning",{},"Слухачі викликаються ",[5099,7551,7552],{},"синхронно"," у порядку їх реєстрації. Якщо слухач виконує блокуючу операцію (важкі обчислення), він заблокує Event Loop до завершення. Для асинхронних операцій використовуйте ",[5109,7555,5990],{}," функції, але пам'ятайте, що ",[5109,7558,7396],{}," не чекає їх завершення.",[6442,7561,7563],{"id":7562},"offeventname-listener-відписка-від-події","off(eventName, listener): відписка від події",[5190,7565,7566],{},"Видаляє конкретний слухач з події:",[5219,7568,7570],{"className":5221,"code":7569,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\nfunction handleData(data: string): void {\n  console.log('Дані:', data);\n}\n\nemitter.on('data', handleData);\n\nemitter.emit('data', 'Перше повідомлення'); \u002F\u002F Вивід: Дані: Перше повідомлення\n\n\u002F\u002F Відписуємось від події\nemitter.off('data', handleData);\n\nemitter.emit('data', 'Друге повідомлення'); \u002F\u002F Нічого не виведе\n",[5109,7571,7572,7588,7592,7606,7610,7632,7651,7655,7659,7678,7682,7704,7708,7713,7732,7736],{"__ignoreMap":5224},[5228,7573,7574,7576,7578,7580,7582,7584,7586],{"class":5230,"line":5231},[5228,7575,5689],{"class":5480},[5228,7577,5692],{"class":5249},[5228,7579,5111],{"class":5259},[5228,7581,5697],{"class":5249},[5228,7583,5700],{"class":5480},[5228,7585,5704],{"class":5703},[5228,7587,5269],{"class":5249},[5228,7589,7590],{"class":5230,"line":5238},[5228,7591,5306],{"emptyLinePlaceholder":5305},[5228,7593,7594,7596,7598,7600,7602,7604],{"class":5230,"line":5253},[5228,7595,5952],{"class":5241},[5228,7597,6304],{"class":5474},[5228,7599,5371],{"class":5249},[5228,7601,5960],{"class":5241},[5228,7603,5786],{"class":5427},[5228,7605,5965],{"class":5249},[5228,7607,7608],{"class":5230,"line":5272},[5228,7609,5306],{"emptyLinePlaceholder":5305},[5228,7611,7612,7614,7617,7619,7622,7624,7626,7628,7630],{"class":5230,"line":5287},[5228,7613,6504],{"class":5241},[5228,7615,7616],{"class":5427}," handleData",[5228,7618,5431],{"class":5249},[5228,7620,7621],{"class":5259},"data",[5228,7623,5263],{"class":5249},[5228,7625,5439],{"class":5245},[5228,7627,6519],{"class":5249},[5228,7629,6522],{"class":5245},[5228,7631,5250],{"class":5249},[5228,7633,7634,7636,7638,7640,7642,7645,7647,7649],{"class":5230,"line":5302},[5228,7635,6356],{"class":5259},[5228,7637,5112],{"class":5249},[5228,7639,6361],{"class":5427},[5228,7641,5431],{"class":5249},[5228,7643,7644],{"class":5703},"'Дані:'",[5228,7646,5442],{"class":5249},[5228,7648,7621],{"class":5259},[5228,7650,5500],{"class":5249},[5228,7652,7653],{"class":5230,"line":5309},[5228,7654,5610],{"class":5249},[5228,7656,7657],{"class":5230,"line":5318},[5228,7658,5306],{"emptyLinePlaceholder":5305},[5228,7660,7661,7663,7665,7667,7669,7671,7673,7676],{"class":5230,"line":5331},[5228,7662,6326],{"class":5259},[5228,7664,5112],{"class":5249},[5228,7666,5981],{"class":5427},[5228,7668,5431],{"class":5249},[5228,7670,6335],{"class":5703},[5228,7672,5442],{"class":5249},[5228,7674,7675],{"class":5259},"handleData",[5228,7677,5500],{"class":5249},[5228,7679,7680],{"class":5230,"line":5343},[5228,7681,5306],{"emptyLinePlaceholder":5305},[5228,7683,7684,7686,7688,7690,7692,7694,7696,7699,7701],{"class":5230,"line":5354},[5228,7685,6326],{"class":5259},[5228,7687,5112],{"class":5249},[5228,7689,5864],{"class":5427},[5228,7691,5431],{"class":5249},[5228,7693,6335],{"class":5703},[5228,7695,5442],{"class":5249},[5228,7697,7698],{"class":5703},"'Перше повідомлення'",[5228,7700,6602],{"class":5249},[5228,7702,7703],{"class":5234},"\u002F\u002F Вивід: Дані: Перше повідомлення\n",[5228,7705,7706],{"class":5230,"line":5360},[5228,7707,5306],{"emptyLinePlaceholder":5305},[5228,7709,7710],{"class":5230,"line":5378},[5228,7711,7712],{"class":5234},"\u002F\u002F Відписуємось від події\n",[5228,7714,7715,7717,7719,7722,7724,7726,7728,7730],{"class":5230,"line":5394},[5228,7716,6326],{"class":5259},[5228,7718,5112],{"class":5249},[5228,7720,7721],{"class":5427},"off",[5228,7723,5431],{"class":5249},[5228,7725,6335],{"class":5703},[5228,7727,5442],{"class":5249},[5228,7729,7675],{"class":5259},[5228,7731,5500],{"class":5249},[5228,7733,7734],{"class":5230,"line":5410},[5228,7735,5306],{"emptyLinePlaceholder":5305},[5228,7737,7738,7740,7742,7744,7746,7748,7750,7752,7754],{"class":5230,"line":5416},[5228,7739,6326],{"class":5259},[5228,7741,5112],{"class":5249},[5228,7743,5864],{"class":5427},[5228,7745,5431],{"class":5249},[5228,7747,6335],{"class":5703},[5228,7749,5442],{"class":5249},[5228,7751,6430],{"class":5703},[5228,7753,6602],{"class":5249},[5228,7755,6963],{"class":5234},[6252,7757,7758,7759,7762,7763,7765,7766,7769,7770,5112],{},"Для відписки необхідно передати ",[5099,7760,7761],{},"ту ж саму функцію",", що була зареєстрована через ",[5109,7764,6806],{},". Анонімні функції відписати неможливо, оскільки немає посилання на них. Метод ",[5109,7767,7768],{},"off()"," є синонімом ",[5109,7771,7772],{},"removeListener()",[6442,7774,7776],{"id":7775},"removealllistenerseventname-видалення-всіх-слухачів","removeAllListeners(eventName?): видалення всіх слухачів",[5190,7778,7779],{},"Видаляє всіх слухачів конкретної події або всіх подій (якщо аргумент не вказано):",[5219,7781,7783],{"className":5221,"code":7782,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\nemitter.on('log', () => console.log('Логер 1'));\nemitter.on('log', () => console.log('Логер 2'));\nemitter.on('error', () => console.error('Помилка'));\n\nemitter.emit('log'); \u002F\u002F Виведе: Логер 1, Логер 2\n\n\u002F\u002F Видаляємо всіх слухачів події 'log'\nemitter.removeAllListeners('log');\n\nemitter.emit('log'); \u002F\u002F Нічого не виведе\nemitter.emit('error'); \u002F\u002F Виведе: Помилка (слухачі 'error' не видалено)\n\n\u002F\u002F Видаляємо всіх слухачів всіх подій\nemitter.removeAllListeners();\n\nemitter.emit('error'); \u002F\u002F Нічого не виведе\n",[5109,7784,7785,7801,7805,7819,7823,7855,7884,7915,7919,7936,7940,7945,7960,7964,7980,7997,8001,8006,8016,8020],{"__ignoreMap":5224},[5228,7786,7787,7789,7791,7793,7795,7797,7799],{"class":5230,"line":5231},[5228,7788,5689],{"class":5480},[5228,7790,5692],{"class":5249},[5228,7792,5111],{"class":5259},[5228,7794,5697],{"class":5249},[5228,7796,5700],{"class":5480},[5228,7798,5704],{"class":5703},[5228,7800,5269],{"class":5249},[5228,7802,7803],{"class":5230,"line":5238},[5228,7804,5306],{"emptyLinePlaceholder":5305},[5228,7806,7807,7809,7811,7813,7815,7817],{"class":5230,"line":5253},[5228,7808,5952],{"class":5241},[5228,7810,6304],{"class":5474},[5228,7812,5371],{"class":5249},[5228,7814,5960],{"class":5241},[5228,7816,5786],{"class":5427},[5228,7818,5965],{"class":5249},[5228,7820,7821],{"class":5230,"line":5272},[5228,7822,5306],{"emptyLinePlaceholder":5305},[5228,7824,7825,7827,7829,7831,7833,7836,7838,7840,7843,7845,7847,7849,7852],{"class":5230,"line":5287},[5228,7826,6326],{"class":5259},[5228,7828,5112],{"class":5249},[5228,7830,5981],{"class":5427},[5228,7832,5431],{"class":5249},[5228,7834,7835],{"class":5703},"'log'",[5228,7837,6885],{"class":5249},[5228,7839,6006],{"class":5241},[5228,7841,7842],{"class":5259}," console",[5228,7844,5112],{"class":5249},[5228,7846,6361],{"class":5427},[5228,7848,5431],{"class":5249},[5228,7850,7851],{"class":5703},"'Логер 1'",[5228,7853,7854],{"class":5249},"));\n",[5228,7856,7857,7859,7861,7863,7865,7867,7869,7871,7873,7875,7877,7879,7882],{"class":5230,"line":5302},[5228,7858,6326],{"class":5259},[5228,7860,5112],{"class":5249},[5228,7862,5981],{"class":5427},[5228,7864,5431],{"class":5249},[5228,7866,7835],{"class":5703},[5228,7868,6885],{"class":5249},[5228,7870,6006],{"class":5241},[5228,7872,7842],{"class":5259},[5228,7874,5112],{"class":5249},[5228,7876,6361],{"class":5427},[5228,7878,5431],{"class":5249},[5228,7880,7881],{"class":5703},"'Логер 2'",[5228,7883,7854],{"class":5249},[5228,7885,7886,7888,7890,7892,7894,7897,7899,7901,7903,7905,7908,7910,7913],{"class":5230,"line":5309},[5228,7887,6326],{"class":5259},[5228,7889,5112],{"class":5249},[5228,7891,5981],{"class":5427},[5228,7893,5431],{"class":5249},[5228,7895,7896],{"class":5703},"'error'",[5228,7898,6885],{"class":5249},[5228,7900,6006],{"class":5241},[5228,7902,7842],{"class":5259},[5228,7904,5112],{"class":5249},[5228,7906,7907],{"class":5427},"error",[5228,7909,5431],{"class":5249},[5228,7911,7912],{"class":5703},"'Помилка'",[5228,7914,7854],{"class":5249},[5228,7916,7917],{"class":5230,"line":5318},[5228,7918,5306],{"emptyLinePlaceholder":5305},[5228,7920,7921,7923,7925,7927,7929,7931,7933],{"class":5230,"line":5331},[5228,7922,6326],{"class":5259},[5228,7924,5112],{"class":5249},[5228,7926,5864],{"class":5427},[5228,7928,5431],{"class":5249},[5228,7930,7835],{"class":5703},[5228,7932,6602],{"class":5249},[5228,7934,7935],{"class":5234},"\u002F\u002F Виведе: Логер 1, Логер 2\n",[5228,7937,7938],{"class":5230,"line":5343},[5228,7939,5306],{"emptyLinePlaceholder":5305},[5228,7941,7942],{"class":5230,"line":5354},[5228,7943,7944],{"class":5234},"\u002F\u002F Видаляємо всіх слухачів події 'log'\n",[5228,7946,7947,7949,7951,7954,7956,7958],{"class":5230,"line":5360},[5228,7948,6326],{"class":5259},[5228,7950,5112],{"class":5249},[5228,7952,7953],{"class":5427},"removeAllListeners",[5228,7955,5431],{"class":5249},[5228,7957,7835],{"class":5703},[5228,7959,5500],{"class":5249},[5228,7961,7962],{"class":5230,"line":5378},[5228,7963,5306],{"emptyLinePlaceholder":5305},[5228,7965,7966,7968,7970,7972,7974,7976,7978],{"class":5230,"line":5394},[5228,7967,6326],{"class":5259},[5228,7969,5112],{"class":5249},[5228,7971,5864],{"class":5427},[5228,7973,5431],{"class":5249},[5228,7975,7835],{"class":5703},[5228,7977,6602],{"class":5249},[5228,7979,6963],{"class":5234},[5228,7981,7982,7984,7986,7988,7990,7992,7994],{"class":5230,"line":5410},[5228,7983,6326],{"class":5259},[5228,7985,5112],{"class":5249},[5228,7987,5864],{"class":5427},[5228,7989,5431],{"class":5249},[5228,7991,7896],{"class":5703},[5228,7993,6602],{"class":5249},[5228,7995,7996],{"class":5234},"\u002F\u002F Виведе: Помилка (слухачі 'error' не видалено)\n",[5228,7998,7999],{"class":5230,"line":5416},[5228,8000,5306],{"emptyLinePlaceholder":5305},[5228,8002,8003],{"class":5230,"line":5421},[5228,8004,8005],{"class":5234},"\u002F\u002F Видаляємо всіх слухачів всіх подій\n",[5228,8007,8008,8010,8012,8014],{"class":5230,"line":5468},[5228,8009,6326],{"class":5259},[5228,8011,5112],{"class":5249},[5228,8013,7953],{"class":5427},[5228,8015,5965],{"class":5249},[5228,8017,8018],{"class":5230,"line":5503},[5228,8019,5306],{"emptyLinePlaceholder":5305},[5228,8021,8022,8024,8026,8028,8030,8032,8034],{"class":5230,"line":5509},[5228,8023,6326],{"class":5259},[5228,8025,5112],{"class":5249},[5228,8027,5864],{"class":5427},[5228,8029,5431],{"class":5249},[5228,8031,7896],{"class":5703},[5228,8033,6602],{"class":5249},[5228,8035,6963],{"class":5234},[8037,8038,8039,8040,8043,8044,8047,8048,8050],"caution",{},"Виклик ",[5109,8041,8042],{},"removeAllListeners()"," без аргументів видаляє ",[5099,8045,8046],{},"всіх слухачів усіх подій",", включаючи системну подію ",[5109,8049,7907],{},". Це може призвести до неконтрольованих помилок. Використовуйте цей метод обережно, переважно для очищення ресурсів при завершенні роботи об'єкта.",[5185,8052,8054],{"id":8053},"створення-власних-класів-з-підтримкою-подій","Створення власних класів з підтримкою подій",[5190,8056,8057,8058,8060],{},"Найпотужніший спосіб використання ",[5109,8059,5111],{}," — створення власних класів, що успадковують його функціональність. Це дозволяє інкапсулювати бізнес-логіку та надати подієвий API для зовнішніх споживачів.",[6442,8062,8064],{"id":8063},"приклад-система-логування-з-подіями","Приклад: система логування з подіями",[5219,8066,8068],{"className":5221,"code":8067,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\nimport { writeFile } from 'node:fs\u002Fpromises';\nimport { join } from 'node:path';\n\ntype LogLevel = 'info' | 'warn' | 'error';\n\ninterface LogEntry {\n  level: LogLevel;\n  message: string;\n  timestamp: Date;\n  metadata?: Record\u003Cstring, unknown>;\n}\n\nclass Logger extends EventEmitter {\n  private logs: LogEntry[] = [];\n\n  log(level: LogLevel, message: string, metadata?: Record\u003Cstring, unknown>): void {\n    const entry: LogEntry = {\n      level,\n      message,\n      timestamp: new Date(),\n      metadata\n    };\n\n    this.logs.push(entry);\n\n    \u002F\u002F Генеруємо загальну подію 'log'\n    this.emit('log', entry);\n\n    \u002F\u002F Генеруємо подію для конкретного рівня\n    this.emit(level, entry);\n\n    \u002F\u002F Для критичних помилок генеруємо окрему подію\n    if (level === 'error') {\n      this.emit('critical', entry);\n    }\n  }\n\n  info(message: string, metadata?: Record\u003Cstring, unknown>): void {\n    this.log('info', message, metadata);\n  }\n\n  warn(message: string, metadata?: Record\u003Cstring, unknown>): void {\n    this.log('warn', message, metadata);\n  }\n\n  error(message: string, metadata?: Record\u003Cstring, unknown>): void {\n    this.log('error', message, metadata);\n  }\n\n  async flush(): Promise\u003Cvoid> {\n    const filepath = join(process.cwd(), 'logs', `app-${Date.now()}.log`);\n    const content = JSON.stringify(this.logs, null, 2);\n    \n    await writeFile(filepath, content, 'utf-8');\n    \n    this.emit('flushed', { filepath, count: this.logs.length });\n    this.logs = [];\n  }\n\n  getStats(): { total: number; byLevel: Record\u003CLogLevel, number> } {\n    const byLevel: Record\u003CLogLevel, number> = {\n      info: 0,\n      warn: 0,\n      error: 0\n    };\n\n    for (const log of this.logs) {\n      byLevel[log.level]++;\n    }\n\n    return {\n      total: this.logs.length,\n      byLevel\n    };\n  }\n}\n\n\u002F\u002F Використання власного Logger з підпискою на події\nconst logger = new Logger();\n\n\u002F\u002F Підписуємось на всі логи для виводу у консоль\nlogger.on('log', (entry: LogEntry) => {\n  const timestamp = entry.timestamp.toISOString();\n  console.log(`[${timestamp}] ${entry.level.toUpperCase()}: ${entry.message}`);\n});\n\n\u002F\u002F Підписуємось на критичні помилки для сповіщень\nlogger.on('critical', async (entry: LogEntry) => {\n  console.error('🚨 КРИТИЧНА ПОМИЛКА:', entry.message);\n  \u002F\u002F Тут можна відправити сповіщення у Slack, PagerDuty тощо\n});\n\n\u002F\u002F Підписуємось на збереження логів\nlogger.on('flushed', ({ filepath, count }) => {\n  console.log(`✅ Збережено ${count} логів у ${filepath}`);\n});\n\n\u002F\u002F Генерація логів\nlogger.info('Сервер запущено', { port: 3000 });\nlogger.warn('Високе навантаження CPU', { usage: 87 });\nlogger.error('Помилка з\\'єднання з базою даних', { code: 'ECONNREFUSED' });\n\n\u002F\u002F Збереження логів у файл\nlogger.flush().catch(console.error);\n",[5109,8069,8070,8086,8104,8122,8126,8151,8155,8164,8176,8187,8198,8221,8225,8229,8242,8257,8261,8307,8321,8328,8335,8348,8353,8358,8362,8383,8387,8392,8410,8414,8419,8437,8441,8446,8463,8483,8488,8492,8496,8531,8553,8557,8561,8596,8618,8622,8627,8663,8686,8691,8696,8715,8766,8805,8810,8835,8840,8878,8890,8895,8900,8936,8959,8970,8980,8989,8994,8999,9023,9041,9046,9051,9058,9075,9081,9086,9091,9096,9101,9107,9123,9128,9134,9162,9185,9241,9246,9251,9257,9288,9312,9318,9323,9328,9334,9364,9397,9402,9407,9413,9438,9463,9494,9499,9505],{"__ignoreMap":5224},[5228,8071,8072,8074,8076,8078,8080,8082,8084],{"class":5230,"line":5231},[5228,8073,5689],{"class":5480},[5228,8075,5692],{"class":5249},[5228,8077,5111],{"class":5259},[5228,8079,5697],{"class":5249},[5228,8081,5700],{"class":5480},[5228,8083,5704],{"class":5703},[5228,8085,5269],{"class":5249},[5228,8087,8088,8090,8092,8095,8097,8099,8102],{"class":5230,"line":5238},[5228,8089,5689],{"class":5480},[5228,8091,5692],{"class":5249},[5228,8093,8094],{"class":5259},"writeFile",[5228,8096,5697],{"class":5249},[5228,8098,5700],{"class":5480},[5228,8100,8101],{"class":5703}," 'node:fs\u002Fpromises'",[5228,8103,5269],{"class":5249},[5228,8105,8106,8108,8110,8113,8115,8117,8120],{"class":5230,"line":5253},[5228,8107,5689],{"class":5480},[5228,8109,5692],{"class":5249},[5228,8111,8112],{"class":5259},"join",[5228,8114,5697],{"class":5249},[5228,8116,5700],{"class":5480},[5228,8118,8119],{"class":5703}," 'node:path'",[5228,8121,5269],{"class":5249},[5228,8123,8124],{"class":5230,"line":5272},[5228,8125,5306],{"emptyLinePlaceholder":5305},[5228,8127,8128,8131,8134,8136,8139,8142,8145,8147,8149],{"class":5230,"line":5287},[5228,8129,8130],{"class":5241},"type",[5228,8132,8133],{"class":5245}," LogLevel",[5228,8135,5371],{"class":5249},[5228,8137,8138],{"class":5703},"'info'",[5228,8140,8141],{"class":5249}," | ",[5228,8143,8144],{"class":5703},"'warn'",[5228,8146,8141],{"class":5249},[5228,8148,7896],{"class":5703},[5228,8150,5269],{"class":5249},[5228,8152,8153],{"class":5230,"line":5302},[5228,8154,5306],{"emptyLinePlaceholder":5305},[5228,8156,8157,8159,8162],{"class":5230,"line":5309},[5228,8158,5715],{"class":5241},[5228,8160,8161],{"class":5245}," LogEntry",[5228,8163,5250],{"class":5249},[5228,8165,8166,8169,8171,8174],{"class":5230,"line":5318},[5228,8167,8168],{"class":5259},"  level",[5228,8170,5263],{"class":5249},[5228,8172,8173],{"class":5245},"LogLevel",[5228,8175,5269],{"class":5249},[5228,8177,8178,8181,8183,8185],{"class":5230,"line":5331},[5228,8179,8180],{"class":5259},"  message",[5228,8182,5263],{"class":5249},[5228,8184,5439],{"class":5245},[5228,8186,5269],{"class":5249},[5228,8188,8189,8192,8194,8196],{"class":5230,"line":5343},[5228,8190,8191],{"class":5259},"  timestamp",[5228,8193,5263],{"class":5249},[5228,8195,7247],{"class":5245},[5228,8197,5269],{"class":5249},[5228,8199,8200,8203,8206,8209,8211,8213,8215,8218],{"class":5230,"line":5354},[5228,8201,8202],{"class":5259},"  metadata",[5228,8204,8205],{"class":5249},"?: ",[5228,8207,8208],{"class":5245},"Record",[5228,8210,5459],{"class":5249},[5228,8212,5439],{"class":5245},[5228,8214,5442],{"class":5249},[5228,8216,8217],{"class":5245},"unknown",[5228,8219,8220],{"class":5249},">;\n",[5228,8222,8223],{"class":5230,"line":5360},[5228,8224,5610],{"class":5249},[5228,8226,8227],{"class":5230,"line":5378},[5228,8228,5306],{"emptyLinePlaceholder":5305},[5228,8230,8231,8233,8236,8238,8240],{"class":5230,"line":5394},[5228,8232,5242],{"class":5241},[5228,8234,8235],{"class":5245}," Logger",[5228,8237,5783],{"class":5241},[5228,8239,5786],{"class":5245},[5228,8241,5250],{"class":5249},[5228,8243,8244,8246,8249,8251,8254],{"class":5230,"line":5410},[5228,8245,5256],{"class":5241},[5228,8247,8248],{"class":5259}," logs",[5228,8250,5263],{"class":5249},[5228,8252,8253],{"class":5245},"LogEntry",[5228,8255,8256],{"class":5249},"[] = [];\n",[5228,8258,8259],{"class":5230,"line":5416},[5228,8260,5306],{"emptyLinePlaceholder":5305},[5228,8262,8263,8266,8268,8271,8273,8275,8277,8279,8281,8283,8285,8288,8290,8292,8294,8296,8298,8300,8303,8305],{"class":5230,"line":5421},[5228,8264,8265],{"class":5427},"  log",[5228,8267,5431],{"class":5249},[5228,8269,8270],{"class":5259},"level",[5228,8272,5263],{"class":5249},[5228,8274,8173],{"class":5245},[5228,8276,5442],{"class":5249},[5228,8278,6341],{"class":5259},[5228,8280,5263],{"class":5249},[5228,8282,5439],{"class":5245},[5228,8284,5442],{"class":5249},[5228,8286,8287],{"class":5259},"metadata",[5228,8289,8205],{"class":5249},[5228,8291,8208],{"class":5245},[5228,8293,5459],{"class":5249},[5228,8295,5439],{"class":5245},[5228,8297,5442],{"class":5249},[5228,8299,8217],{"class":5245},[5228,8301,8302],{"class":5249},">): ",[5228,8304,6522],{"class":5245},[5228,8306,5250],{"class":5249},[5228,8308,8309,8311,8314,8316,8318],{"class":5230,"line":5468},[5228,8310,5471],{"class":5241},[5228,8312,8313],{"class":5474}," entry",[5228,8315,5263],{"class":5249},[5228,8317,8253],{"class":5245},[5228,8319,8320],{"class":5249}," = {\n",[5228,8322,8323,8326],{"class":5230,"line":5503},[5228,8324,8325],{"class":5259},"      level",[5228,8327,5328],{"class":5249},[5228,8329,8330,8333],{"class":5230,"line":5509},[5228,8331,8332],{"class":5259},"      message",[5228,8334,5328],{"class":5249},[5228,8336,8337,8340,8343,8345],{"class":5230,"line":5515},[5228,8338,8339],{"class":5259},"      timestamp:",[5228,8341,8342],{"class":5241}," new",[5228,8344,7369],{"class":5427},[5228,8346,8347],{"class":5249},"(),\n",[5228,8349,8350],{"class":5230,"line":5543},[5228,8351,8352],{"class":5259},"      metadata\n",[5228,8354,8355],{"class":5230,"line":5565},[5228,8356,8357],{"class":5249},"    };\n",[5228,8359,8360],{"class":5230,"line":5587},[5228,8361,5306],{"emptyLinePlaceholder":5305},[5228,8363,8364,8366,8368,8371,8373,8376,8378,8381],{"class":5230,"line":5592},[5228,8365,5363],{"class":5241},[5228,8367,5112],{"class":5249},[5228,8369,8370],{"class":5259},"logs",[5228,8372,5112],{"class":5249},[5228,8374,8375],{"class":5427},"push",[5228,8377,5431],{"class":5249},[5228,8379,8380],{"class":5259},"entry",[5228,8382,5500],{"class":5249},[5228,8384,8385],{"class":5230,"line":5602},[5228,8386,5306],{"emptyLinePlaceholder":5305},[5228,8388,8389],{"class":5230,"line":5607},[5228,8390,8391],{"class":5234},"    \u002F\u002F Генеруємо загальну подію 'log'\n",[5228,8393,8394,8396,8398,8400,8402,8404,8406,8408],{"class":5230,"line":5949},[5228,8395,5363],{"class":5241},[5228,8397,5112],{"class":5249},[5228,8399,5864],{"class":5427},[5228,8401,5431],{"class":5249},[5228,8403,7835],{"class":5703},[5228,8405,5442],{"class":5249},[5228,8407,8380],{"class":5259},[5228,8409,5500],{"class":5249},[5228,8411,8412],{"class":5230,"line":5968},[5228,8413,5306],{"emptyLinePlaceholder":5305},[5228,8415,8416],{"class":5230,"line":5973},[5228,8417,8418],{"class":5234},"    \u002F\u002F Генеруємо подію для конкретного рівня\n",[5228,8420,8421,8423,8425,8427,8429,8431,8433,8435],{"class":5230,"line":6011},[5228,8422,5363],{"class":5241},[5228,8424,5112],{"class":5249},[5228,8426,5864],{"class":5427},[5228,8428,5431],{"class":5249},[5228,8430,8270],{"class":5259},[5228,8432,5442],{"class":5249},[5228,8434,8380],{"class":5259},[5228,8436,5500],{"class":5249},[5228,8438,8439],{"class":5230,"line":6042},[5228,8440,5306],{"emptyLinePlaceholder":5305},[5228,8442,8443],{"class":5230,"line":6048},[5228,8444,8445],{"class":5234},"    \u002F\u002F Для критичних помилок генеруємо окрему подію\n",[5228,8447,8448,8451,8453,8455,8458,8460],{"class":5230,"line":6053},[5228,8449,8450],{"class":5480},"    if",[5228,8452,5102],{"class":5249},[5228,8454,8270],{"class":5259},[5228,8456,8457],{"class":5249}," === ",[5228,8459,7896],{"class":5703},[5228,8461,8462],{"class":5249},") {\n",[5228,8464,8465,8468,8470,8472,8474,8477,8479,8481],{"class":5230,"line":6084},[5228,8466,8467],{"class":5241},"      this",[5228,8469,5112],{"class":5249},[5228,8471,5864],{"class":5427},[5228,8473,5431],{"class":5249},[5228,8475,8476],{"class":5703},"'critical'",[5228,8478,5442],{"class":5249},[5228,8480,8380],{"class":5259},[5228,8482,5500],{"class":5249},[5228,8484,8485],{"class":5230,"line":6105},[5228,8486,8487],{"class":5249},"    }\n",[5228,8489,8490],{"class":5230,"line":6110},[5228,8491,5413],{"class":5249},[5228,8493,8494],{"class":5230,"line":6115},[5228,8495,5306],{"emptyLinePlaceholder":5305},[5228,8497,8498,8501,8503,8505,8507,8509,8511,8513,8515,8517,8519,8521,8523,8525,8527,8529],{"class":5230,"line":6146},[5228,8499,8500],{"class":5427},"  info",[5228,8502,5431],{"class":5249},[5228,8504,6341],{"class":5259},[5228,8506,5263],{"class":5249},[5228,8508,5439],{"class":5245},[5228,8510,5442],{"class":5249},[5228,8512,8287],{"class":5259},[5228,8514,8205],{"class":5249},[5228,8516,8208],{"class":5245},[5228,8518,5459],{"class":5249},[5228,8520,5439],{"class":5245},[5228,8522,5442],{"class":5249},[5228,8524,8217],{"class":5245},[5228,8526,8302],{"class":5249},[5228,8528,6522],{"class":5245},[5228,8530,5250],{"class":5249},[5228,8532,8533,8535,8537,8539,8541,8543,8545,8547,8549,8551],{"class":5230,"line":6163},[5228,8534,5363],{"class":5241},[5228,8536,5112],{"class":5249},[5228,8538,6361],{"class":5427},[5228,8540,5431],{"class":5249},[5228,8542,8138],{"class":5703},[5228,8544,5442],{"class":5249},[5228,8546,6341],{"class":5259},[5228,8548,5442],{"class":5249},[5228,8550,8287],{"class":5259},[5228,8552,5500],{"class":5249},[5228,8554,8555],{"class":5230,"line":6168},[5228,8556,5413],{"class":5249},[5228,8558,8559],{"class":5230,"line":6173},[5228,8560,5306],{"emptyLinePlaceholder":5305},[5228,8562,8563,8566,8568,8570,8572,8574,8576,8578,8580,8582,8584,8586,8588,8590,8592,8594],{"class":5230,"line":6179},[5228,8564,8565],{"class":5427},"  warn",[5228,8567,5431],{"class":5249},[5228,8569,6341],{"class":5259},[5228,8571,5263],{"class":5249},[5228,8573,5439],{"class":5245},[5228,8575,5442],{"class":5249},[5228,8577,8287],{"class":5259},[5228,8579,8205],{"class":5249},[5228,8581,8208],{"class":5245},[5228,8583,5459],{"class":5249},[5228,8585,5439],{"class":5245},[5228,8587,5442],{"class":5249},[5228,8589,8217],{"class":5245},[5228,8591,8302],{"class":5249},[5228,8593,6522],{"class":5245},[5228,8595,5250],{"class":5249},[5228,8597,8598,8600,8602,8604,8606,8608,8610,8612,8614,8616],{"class":5230,"line":6210},[5228,8599,5363],{"class":5241},[5228,8601,5112],{"class":5249},[5228,8603,6361],{"class":5427},[5228,8605,5431],{"class":5249},[5228,8607,8144],{"class":5703},[5228,8609,5442],{"class":5249},[5228,8611,6341],{"class":5259},[5228,8613,5442],{"class":5249},[5228,8615,8287],{"class":5259},[5228,8617,5500],{"class":5249},[5228,8619,8620],{"class":5230,"line":6242},[5228,8621,5413],{"class":5249},[5228,8623,8625],{"class":5230,"line":8624},46,[5228,8626,5306],{"emptyLinePlaceholder":5305},[5228,8628,8630,8633,8635,8637,8639,8641,8643,8645,8647,8649,8651,8653,8655,8657,8659,8661],{"class":5230,"line":8629},47,[5228,8631,8632],{"class":5427},"  error",[5228,8634,5431],{"class":5249},[5228,8636,6341],{"class":5259},[5228,8638,5263],{"class":5249},[5228,8640,5439],{"class":5245},[5228,8642,5442],{"class":5249},[5228,8644,8287],{"class":5259},[5228,8646,8205],{"class":5249},[5228,8648,8208],{"class":5245},[5228,8650,5459],{"class":5249},[5228,8652,5439],{"class":5245},[5228,8654,5442],{"class":5249},[5228,8656,8217],{"class":5245},[5228,8658,8302],{"class":5249},[5228,8660,6522],{"class":5245},[5228,8662,5250],{"class":5249},[5228,8664,8666,8668,8670,8672,8674,8676,8678,8680,8682,8684],{"class":5230,"line":8665},48,[5228,8667,5363],{"class":5241},[5228,8669,5112],{"class":5249},[5228,8671,6361],{"class":5427},[5228,8673,5431],{"class":5249},[5228,8675,7896],{"class":5703},[5228,8677,5442],{"class":5249},[5228,8679,6341],{"class":5259},[5228,8681,5442],{"class":5249},[5228,8683,8287],{"class":5259},[5228,8685,5500],{"class":5249},[5228,8687,8689],{"class":5230,"line":8688},49,[5228,8690,5413],{"class":5249},[5228,8692,8694],{"class":5230,"line":8693},50,[5228,8695,5306],{"emptyLinePlaceholder":5305},[5228,8697,8699,8701,8704,8707,8709,8711,8713],{"class":5230,"line":8698},51,[5228,8700,5424],{"class":5241},[5228,8702,8703],{"class":5427}," flush",[5228,8705,8706],{"class":5249},"(): ",[5228,8708,5456],{"class":5245},[5228,8710,5459],{"class":5249},[5228,8712,6522],{"class":5245},[5228,8714,5465],{"class":5249},[5228,8716,8718,8720,8723,8725,8727,8729,8732,8734,8737,8740,8743,8745,8748,8750,8752,8754,8757,8759,8761,8764],{"class":5230,"line":8717},52,[5228,8719,5471],{"class":5241},[5228,8721,8722],{"class":5474}," filepath",[5228,8724,5371],{"class":5249},[5228,8726,8112],{"class":5427},[5228,8728,5431],{"class":5249},[5228,8730,8731],{"class":5259},"process",[5228,8733,5112],{"class":5249},[5228,8735,8736],{"class":5427},"cwd",[5228,8738,8739],{"class":5249},"(), ",[5228,8741,8742],{"class":5703},"'logs'",[5228,8744,5442],{"class":5249},[5228,8746,8747],{"class":5703},"`app-",[5228,8749,6540],{"class":5241},[5228,8751,7247],{"class":5259},[5228,8753,5112],{"class":7320},[5228,8755,8756],{"class":5427},"now",[5228,8758,7326],{"class":7320},[5228,8760,6545],{"class":5241},[5228,8762,8763],{"class":5703},".log`",[5228,8765,5500],{"class":5249},[5228,8767,8769,8771,8774,8776,8779,8781,8784,8786,8789,8791,8793,8795,8798,8800,8803],{"class":5230,"line":8768},53,[5228,8770,5471],{"class":5241},[5228,8772,8773],{"class":5474}," content",[5228,8775,5371],{"class":5249},[5228,8777,8778],{"class":5474},"JSON",[5228,8780,5112],{"class":5249},[5228,8782,8783],{"class":5427},"stringify",[5228,8785,5431],{"class":5249},[5228,8787,8788],{"class":5241},"this",[5228,8790,5112],{"class":5249},[5228,8792,8370],{"class":5259},[5228,8794,5442],{"class":5249},[5228,8796,8797],{"class":5241},"null",[5228,8799,5442],{"class":5249},[5228,8801,8802],{"class":7154},"2",[5228,8804,5500],{"class":5249},[5228,8806,8808],{"class":5230,"line":8807},54,[5228,8809,5506],{"class":5249},[5228,8811,8813,8815,8818,8820,8823,8825,8828,8830,8833],{"class":5230,"line":8812},55,[5228,8814,5518],{"class":5480},[5228,8816,8817],{"class":5427}," writeFile",[5228,8819,5431],{"class":5249},[5228,8821,8822],{"class":5259},"filepath",[5228,8824,5442],{"class":5249},[5228,8826,8827],{"class":5259},"content",[5228,8829,5442],{"class":5249},[5228,8831,8832],{"class":5703},"'utf-8'",[5228,8834,5500],{"class":5249},[5228,8836,8838],{"class":5230,"line":8837},56,[5228,8839,5506],{"class":5249},[5228,8841,8843,8845,8847,8849,8851,8854,8857,8859,8861,8864,8866,8868,8870,8872,8875],{"class":5230,"line":8842},57,[5228,8844,5363],{"class":5241},[5228,8846,5112],{"class":5249},[5228,8848,5864],{"class":5427},[5228,8850,5431],{"class":5249},[5228,8852,8853],{"class":5703},"'flushed'",[5228,8855,8856],{"class":5249},", { ",[5228,8858,8822],{"class":5259},[5228,8860,5442],{"class":5249},[5228,8862,8863],{"class":5259},"count:",[5228,8865,5484],{"class":5241},[5228,8867,5112],{"class":5249},[5228,8869,8370],{"class":5259},[5228,8871,5112],{"class":5249},[5228,8873,8874],{"class":5259},"length",[5228,8876,8877],{"class":5249}," });\n",[5228,8879,8881,8883,8885,8887],{"class":5230,"line":8880},58,[5228,8882,5363],{"class":5241},[5228,8884,5112],{"class":5249},[5228,8886,8370],{"class":5259},[5228,8888,8889],{"class":5249}," = [];\n",[5228,8891,8893],{"class":5230,"line":8892},59,[5228,8894,5413],{"class":5249},[5228,8896,8898],{"class":5230,"line":8897},60,[5228,8899,5306],{"emptyLinePlaceholder":5305},[5228,8901,8903,8906,8909,8911,8913,8915,8918,8921,8923,8925,8927,8929,8931,8933],{"class":5230,"line":8902},61,[5228,8904,8905],{"class":5427},"  getStats",[5228,8907,8908],{"class":5249},"(): { ",[5228,8910,6237],{"class":5259},[5228,8912,5263],{"class":5249},[5228,8914,5764],{"class":5245},[5228,8916,8917],{"class":5249},"; ",[5228,8919,8920],{"class":5259},"byLevel",[5228,8922,5263],{"class":5249},[5228,8924,8208],{"class":5245},[5228,8926,5459],{"class":5249},[5228,8928,8173],{"class":5245},[5228,8930,5442],{"class":5249},[5228,8932,5764],{"class":5245},[5228,8934,8935],{"class":5249},"> } {\n",[5228,8937,8939,8941,8944,8946,8948,8950,8952,8954,8956],{"class":5230,"line":8938},62,[5228,8940,5471],{"class":5241},[5228,8942,8943],{"class":5474}," byLevel",[5228,8945,5263],{"class":5249},[5228,8947,8208],{"class":5245},[5228,8949,5459],{"class":5249},[5228,8951,8173],{"class":5245},[5228,8953,5442],{"class":5249},[5228,8955,5764],{"class":5245},[5228,8957,8958],{"class":5249},"> = {\n",[5228,8960,8962,8965,8968],{"class":5230,"line":8961},63,[5228,8963,8964],{"class":5259},"      info:",[5228,8966,8967],{"class":7154}," 0",[5228,8969,5328],{"class":5249},[5228,8971,8973,8976,8978],{"class":5230,"line":8972},64,[5228,8974,8975],{"class":5259},"      warn:",[5228,8977,8967],{"class":7154},[5228,8979,5328],{"class":5249},[5228,8981,8983,8986],{"class":5230,"line":8982},65,[5228,8984,8985],{"class":5259},"      error:",[5228,8987,8988],{"class":7154}," 0\n",[5228,8990,8992],{"class":5230,"line":8991},66,[5228,8993,8357],{"class":5249},[5228,8995,8997],{"class":5230,"line":8996},67,[5228,8998,5306],{"emptyLinePlaceholder":5305},[5228,9000,9002,9005,9007,9009,9012,9015,9017,9019,9021],{"class":5230,"line":9001},68,[5228,9003,9004],{"class":5480},"    for",[5228,9006,5102],{"class":5249},[5228,9008,5952],{"class":5241},[5228,9010,9011],{"class":5474}," log",[5228,9013,9014],{"class":5241}," of",[5228,9016,5484],{"class":5241},[5228,9018,5112],{"class":5249},[5228,9020,8370],{"class":5259},[5228,9022,8462],{"class":5249},[5228,9024,9026,9029,9032,9034,9036,9038],{"class":5230,"line":9025},69,[5228,9027,9028],{"class":5259},"      byLevel",[5228,9030,9031],{"class":5249},"[",[5228,9033,6361],{"class":5259},[5228,9035,5112],{"class":5249},[5228,9037,8270],{"class":5259},[5228,9039,9040],{"class":5249},"]++;\n",[5228,9042,9044],{"class":5230,"line":9043},70,[5228,9045,8487],{"class":5249},[5228,9047,9049],{"class":5230,"line":9048},71,[5228,9050,5306],{"emptyLinePlaceholder":5305},[5228,9052,9054,9056],{"class":5230,"line":9053},72,[5228,9055,5595],{"class":5480},[5228,9057,5250],{"class":5249},[5228,9059,9061,9063,9065,9067,9069,9071,9073],{"class":5230,"line":9060},73,[5228,9062,5905],{"class":5259},[5228,9064,5484],{"class":5241},[5228,9066,5112],{"class":5249},[5228,9068,8370],{"class":5259},[5228,9070,5112],{"class":5249},[5228,9072,8874],{"class":5259},[5228,9074,5328],{"class":5249},[5228,9076,9078],{"class":5230,"line":9077},74,[5228,9079,9080],{"class":5259},"      byLevel\n",[5228,9082,9084],{"class":5230,"line":9083},75,[5228,9085,8357],{"class":5249},[5228,9087,9089],{"class":5230,"line":9088},76,[5228,9090,5413],{"class":5249},[5228,9092,9094],{"class":5230,"line":9093},77,[5228,9095,5610],{"class":5249},[5228,9097,9099],{"class":5230,"line":9098},78,[5228,9100,5306],{"emptyLinePlaceholder":5305},[5228,9102,9104],{"class":5230,"line":9103},79,[5228,9105,9106],{"class":5234},"\u002F\u002F Використання власного Logger з підпискою на події\n",[5228,9108,9110,9112,9115,9117,9119,9121],{"class":5230,"line":9109},80,[5228,9111,5952],{"class":5241},[5228,9113,9114],{"class":5474}," logger",[5228,9116,5371],{"class":5249},[5228,9118,5960],{"class":5241},[5228,9120,8235],{"class":5427},[5228,9122,5965],{"class":5249},[5228,9124,9126],{"class":5230,"line":9125},81,[5228,9127,5306],{"emptyLinePlaceholder":5305},[5228,9129,9131],{"class":5230,"line":9130},82,[5228,9132,9133],{"class":5234},"\u002F\u002F Підписуємось на всі логи для виводу у консоль\n",[5228,9135,9137,9140,9142,9144,9146,9148,9150,9152,9154,9156,9158,9160],{"class":5230,"line":9136},83,[5228,9138,9139],{"class":5259},"logger",[5228,9141,5112],{"class":5249},[5228,9143,5981],{"class":5427},[5228,9145,5431],{"class":5249},[5228,9147,7835],{"class":5703},[5228,9149,6338],{"class":5249},[5228,9151,8380],{"class":5259},[5228,9153,5263],{"class":5249},[5228,9155,8253],{"class":5245},[5228,9157,6003],{"class":5249},[5228,9159,6006],{"class":5241},[5228,9161,5250],{"class":5249},[5228,9163,9165,9168,9171,9173,9175,9177,9179,9181,9183],{"class":5230,"line":9164},84,[5228,9166,9167],{"class":5241},"  const",[5228,9169,9170],{"class":5474}," timestamp",[5228,9172,5371],{"class":5249},[5228,9174,8380],{"class":5259},[5228,9176,5112],{"class":5249},[5228,9178,7242],{"class":5259},[5228,9180,5112],{"class":5249},[5228,9182,7323],{"class":5427},[5228,9184,5965],{"class":5249},[5228,9186,9188,9190,9192,9194,9196,9199,9201,9203,9205,9208,9210,9212,9214,9216,9218,9221,9223,9225,9227,9229,9231,9233,9235,9237,9239],{"class":5230,"line":9187},85,[5228,9189,6356],{"class":5259},[5228,9191,5112],{"class":5249},[5228,9193,6361],{"class":5427},[5228,9195,5431],{"class":5249},[5228,9197,9198],{"class":5703},"`[",[5228,9200,6540],{"class":5241},[5228,9202,7242],{"class":5259},[5228,9204,6545],{"class":5241},[5228,9206,9207],{"class":5703},"] ",[5228,9209,6540],{"class":5241},[5228,9211,8380],{"class":5259},[5228,9213,5112],{"class":7320},[5228,9215,8270],{"class":5259},[5228,9217,5112],{"class":7320},[5228,9219,9220],{"class":5427},"toUpperCase",[5228,9222,7326],{"class":7320},[5228,9224,6545],{"class":5241},[5228,9226,5263],{"class":5703},[5228,9228,6540],{"class":5241},[5228,9230,8380],{"class":5259},[5228,9232,5112],{"class":7320},[5228,9234,6341],{"class":5259},[5228,9236,6545],{"class":5241},[5228,9238,6548],{"class":5703},[5228,9240,5500],{"class":5249},[5228,9242,9244],{"class":5230,"line":9243},86,[5228,9245,6045],{"class":5249},[5228,9247,9249],{"class":5230,"line":9248},87,[5228,9250,5306],{"emptyLinePlaceholder":5305},[5228,9252,9254],{"class":5230,"line":9253},88,[5228,9255,9256],{"class":5234},"\u002F\u002F Підписуємось на критичні помилки для сповіщень\n",[5228,9258,9260,9262,9264,9266,9268,9270,9272,9274,9276,9278,9280,9282,9284,9286],{"class":5230,"line":9259},89,[5228,9261,9139],{"class":5259},[5228,9263,5112],{"class":5249},[5228,9265,5981],{"class":5427},[5228,9267,5431],{"class":5249},[5228,9269,8476],{"class":5703},[5228,9271,5442],{"class":5249},[5228,9273,5990],{"class":5241},[5228,9275,5102],{"class":5249},[5228,9277,8380],{"class":5259},[5228,9279,5263],{"class":5249},[5228,9281,8253],{"class":5245},[5228,9283,6003],{"class":5249},[5228,9285,6006],{"class":5241},[5228,9287,5250],{"class":5249},[5228,9289,9291,9293,9295,9297,9299,9302,9304,9306,9308,9310],{"class":5230,"line":9290},90,[5228,9292,6356],{"class":5259},[5228,9294,5112],{"class":5249},[5228,9296,7907],{"class":5427},[5228,9298,5431],{"class":5249},[5228,9300,9301],{"class":5703},"'🚨 КРИТИЧНА ПОМИЛКА:'",[5228,9303,5442],{"class":5249},[5228,9305,8380],{"class":5259},[5228,9307,5112],{"class":5249},[5228,9309,6341],{"class":5259},[5228,9311,5500],{"class":5249},[5228,9313,9315],{"class":5230,"line":9314},91,[5228,9316,9317],{"class":5234},"  \u002F\u002F Тут можна відправити сповіщення у Slack, PagerDuty тощо\n",[5228,9319,9321],{"class":5230,"line":9320},92,[5228,9322,6045],{"class":5249},[5228,9324,9326],{"class":5230,"line":9325},93,[5228,9327,5306],{"emptyLinePlaceholder":5305},[5228,9329,9331],{"class":5230,"line":9330},94,[5228,9332,9333],{"class":5234},"\u002F\u002F Підписуємось на збереження логів\n",[5228,9335,9337,9339,9341,9343,9345,9347,9350,9352,9354,9357,9360,9362],{"class":5230,"line":9336},95,[5228,9338,9139],{"class":5259},[5228,9340,5112],{"class":5249},[5228,9342,5981],{"class":5427},[5228,9344,5431],{"class":5249},[5228,9346,8853],{"class":5703},[5228,9348,9349],{"class":5249},", ({ ",[5228,9351,8822],{"class":5259},[5228,9353,5442],{"class":5249},[5228,9355,9356],{"class":5259},"count",[5228,9358,9359],{"class":5249}," }) ",[5228,9361,6006],{"class":5241},[5228,9363,5250],{"class":5249},[5228,9365,9367,9369,9371,9373,9375,9378,9380,9382,9384,9387,9389,9391,9393,9395],{"class":5230,"line":9366},96,[5228,9368,6356],{"class":5259},[5228,9370,5112],{"class":5249},[5228,9372,6361],{"class":5427},[5228,9374,5431],{"class":5249},[5228,9376,9377],{"class":5703},"`✅ Збережено ",[5228,9379,6540],{"class":5241},[5228,9381,9356],{"class":5259},[5228,9383,6545],{"class":5241},[5228,9385,9386],{"class":5703}," логів у ",[5228,9388,6540],{"class":5241},[5228,9390,8822],{"class":5259},[5228,9392,6545],{"class":5241},[5228,9394,6548],{"class":5703},[5228,9396,5500],{"class":5249},[5228,9398,9400],{"class":5230,"line":9399},97,[5228,9401,6045],{"class":5249},[5228,9403,9405],{"class":5230,"line":9404},98,[5228,9406,5306],{"emptyLinePlaceholder":5305},[5228,9408,9410],{"class":5230,"line":9409},99,[5228,9411,9412],{"class":5234},"\u002F\u002F Генерація логів\n",[5228,9414,9416,9418,9420,9423,9425,9428,9430,9433,9436],{"class":5230,"line":9415},100,[5228,9417,9139],{"class":5259},[5228,9419,5112],{"class":5249},[5228,9421,9422],{"class":5427},"info",[5228,9424,5431],{"class":5249},[5228,9426,9427],{"class":5703},"'Сервер запущено'",[5228,9429,8856],{"class":5249},[5228,9431,9432],{"class":5259},"port:",[5228,9434,9435],{"class":7154}," 3000",[5228,9437,8877],{"class":5249},[5228,9439,9441,9443,9445,9448,9450,9453,9455,9458,9461],{"class":5230,"line":9440},101,[5228,9442,9139],{"class":5259},[5228,9444,5112],{"class":5249},[5228,9446,9447],{"class":5427},"warn",[5228,9449,5431],{"class":5249},[5228,9451,9452],{"class":5703},"'Високе навантаження CPU'",[5228,9454,8856],{"class":5249},[5228,9456,9457],{"class":5259},"usage:",[5228,9459,9460],{"class":7154}," 87",[5228,9462,8877],{"class":5249},[5228,9464,9466,9468,9470,9472,9474,9477,9481,9484,9486,9489,9492],{"class":5230,"line":9465},102,[5228,9467,9139],{"class":5259},[5228,9469,5112],{"class":5249},[5228,9471,7907],{"class":5427},[5228,9473,5431],{"class":5249},[5228,9475,9476],{"class":5703},"'Помилка з",[5228,9478,9480],{"class":9479},"sjcCO","\\'",[5228,9482,9483],{"class":5703},"єднання з базою даних'",[5228,9485,8856],{"class":5249},[5228,9487,9488],{"class":5259},"code:",[5228,9490,9491],{"class":5703}," 'ECONNREFUSED'",[5228,9493,8877],{"class":5249},[5228,9495,9497],{"class":5230,"line":9496},103,[5228,9498,5306],{"emptyLinePlaceholder":5305},[5228,9500,9502],{"class":5230,"line":9501},104,[5228,9503,9504],{"class":5234},"\u002F\u002F Збереження логів у файл\n",[5228,9506,9508,9510,9512,9515,9518,9521,9523,9525,9527,9529],{"class":5230,"line":9507},105,[5228,9509,9139],{"class":5259},[5228,9511,5112],{"class":5249},[5228,9513,9514],{"class":5427},"flush",[5228,9516,9517],{"class":5249},"().",[5228,9519,9520],{"class":5427},"catch",[5228,9522,5431],{"class":5249},[5228,9524,7459],{"class":5259},[5228,9526,5112],{"class":5249},[5228,9528,7907],{"class":5259},[5228,9530,5500],{"class":5249},[5190,9532,9533],{},"Вивід у консоль:",[5219,9535,9539],{"className":9536,"code":9538,"language":6675},[9537],"language-text","[2026-09-03T10:30:00.000Z] INFO: Сервер запущено\n[2026-09-03T10:30:05.000Z] WARN: Високе навантаження CPU\n[2026-09-03T10:30:07.000Z] ERROR: Помилка з'єднання з базою даних\n🚨 КРИТИЧНА ПОМИЛКА: Помилка з'єднання з базою даних\n✅ Збережено 3 логів у \u002Fpath\u002Fto\u002Flogs\u002Fapp-1725358207000.log\n",[5109,9540,9538],{"__ignoreMap":5224},[5190,9542,9543,9544,9547],{},"Цей підхід дозволяє зовнішнім модулям підписуватися на події логування без модифікації класу ",[5109,9545,9546],{},"Logger",". Додавання нового обробника (наприклад, відправка метрик у Prometheus) не вимагає змін у основному коді.",[6801,9549,9550,9551,9554,9555,5442,9557,5631,9560,9563,9564,9567],{},"При проєктуванні подієвого API дотримуйтесь правила: ",[5099,9552,9553],{},"генеруйте події для значущих змін стану, а не для кожної операції",". Надмірна кількість подій ускладнює розуміння життєвого циклу об'єкта. Для прикладу Logger: події ",[5109,9556,6361],{},[5109,9558,9559],{},"critical",[5109,9561,9562],{},"flushed"," є значущими, але подія ",[5109,9565,9566],{},"getStats"," була б надмірною.",[5185,9569,9571],{"id":9570},"обробка-помилок-спеціальна-подія-error","Обробка помилок: спеціальна подія 'error'",[5190,9573,9574,9575,9577,9578,5112],{},"Подія ",[5109,9576,7907],{}," має особливий статус у Node.js: якщо EventEmitter генерує цю подію, але жоден слухач не зареєстрований, Node.js ",[5099,9579,9580],{},"викидає виняток та аварійно завершує процес",[6442,9582,9584],{"id":9583},"демонстрація-проблеми","Демонстрація проблеми",[5219,9586,9588],{"className":5221,"code":9587,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\n\u002F\u002F ❌ АНТИПАТТЕРН: Генерація 'error' без слухачів\nemitter.emit('error', new Error('Щось пішло не так'));\n\n\u002F\u002F Процес Node.js завершиться з кодом виходу 1:\n\u002F\u002F Error: Щось пішло не так\n\u002F\u002F     at Object.\u003Canonymous> (...)\n\u002F\u002F Emitted 'error' event on EventEmitter instance at: ...\n",[5109,9589,9590,9606,9610,9624,9628,9633,9659,9663,9668,9673,9678],{"__ignoreMap":5224},[5228,9591,9592,9594,9596,9598,9600,9602,9604],{"class":5230,"line":5231},[5228,9593,5689],{"class":5480},[5228,9595,5692],{"class":5249},[5228,9597,5111],{"class":5259},[5228,9599,5697],{"class":5249},[5228,9601,5700],{"class":5480},[5228,9603,5704],{"class":5703},[5228,9605,5269],{"class":5249},[5228,9607,9608],{"class":5230,"line":5238},[5228,9609,5306],{"emptyLinePlaceholder":5305},[5228,9611,9612,9614,9616,9618,9620,9622],{"class":5230,"line":5253},[5228,9613,5952],{"class":5241},[5228,9615,6304],{"class":5474},[5228,9617,5371],{"class":5249},[5228,9619,5960],{"class":5241},[5228,9621,5786],{"class":5427},[5228,9623,5965],{"class":5249},[5228,9625,9626],{"class":5230,"line":5272},[5228,9627,5306],{"emptyLinePlaceholder":5305},[5228,9629,9630],{"class":5230,"line":5287},[5228,9631,9632],{"class":5234},"\u002F\u002F ❌ АНТИПАТТЕРН: Генерація 'error' без слухачів\n",[5228,9634,9635,9637,9639,9641,9643,9645,9647,9649,9652,9654,9657],{"class":5230,"line":5302},[5228,9636,6326],{"class":5259},[5228,9638,5112],{"class":5249},[5228,9640,5864],{"class":5427},[5228,9642,5431],{"class":5249},[5228,9644,7896],{"class":5703},[5228,9646,5442],{"class":5249},[5228,9648,5960],{"class":5241},[5228,9650,9651],{"class":5427}," Error",[5228,9653,5431],{"class":5249},[5228,9655,9656],{"class":5703},"'Щось пішло не так'",[5228,9658,7854],{"class":5249},[5228,9660,9661],{"class":5230,"line":5309},[5228,9662,5306],{"emptyLinePlaceholder":5305},[5228,9664,9665],{"class":5230,"line":5318},[5228,9666,9667],{"class":5234},"\u002F\u002F Процес Node.js завершиться з кодом виходу 1:\n",[5228,9669,9670],{"class":5230,"line":5331},[5228,9671,9672],{"class":5234},"\u002F\u002F Error: Щось пішло не так\n",[5228,9674,9675],{"class":5230,"line":5343},[5228,9676,9677],{"class":5234},"\u002F\u002F     at Object.\u003Canonymous> (...)\n",[5228,9679,9680],{"class":5230,"line":5354},[5228,9681,9682],{"class":5234},"\u002F\u002F Emitted 'error' event on EventEmitter instance at: ...\n",[5190,9684,9685],{},"Цей механізм існує для попередження мовчазних відмов: помилки повинні бути явно оброблені, інакше система не повинна продовжувати роботу.",[6442,9687,9689],{"id":9688},"правильна-обробка-помилок","Правильна обробка помилок",[5219,9691,9693],{"className":5221,"code":9692,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\n\u002F\u002F ✅ ПРАВИЛЬНО: Завжди реєструйте обробник 'error'\nemitter.on('error', (error: Error) => {\n  console.error('Виникла помилка:', error.message);\n  console.error('Stack trace:', error.stack);\n  \n  \u002F\u002F Тут можна додати логування, сповіщення, fallback-логіку\n});\n\nemitter.emit('error', new Error('Щось пішло не так'));\n\u002F\u002F Процес продовжить роботу, помилка оброблена\n",[5109,9694,9695,9711,9715,9729,9733,9738,9765,9788,9812,9817,9822,9826,9830,9854],{"__ignoreMap":5224},[5228,9696,9697,9699,9701,9703,9705,9707,9709],{"class":5230,"line":5231},[5228,9698,5689],{"class":5480},[5228,9700,5692],{"class":5249},[5228,9702,5111],{"class":5259},[5228,9704,5697],{"class":5249},[5228,9706,5700],{"class":5480},[5228,9708,5704],{"class":5703},[5228,9710,5269],{"class":5249},[5228,9712,9713],{"class":5230,"line":5238},[5228,9714,5306],{"emptyLinePlaceholder":5305},[5228,9716,9717,9719,9721,9723,9725,9727],{"class":5230,"line":5253},[5228,9718,5952],{"class":5241},[5228,9720,6304],{"class":5474},[5228,9722,5371],{"class":5249},[5228,9724,5960],{"class":5241},[5228,9726,5786],{"class":5427},[5228,9728,5965],{"class":5249},[5228,9730,9731],{"class":5230,"line":5272},[5228,9732,5306],{"emptyLinePlaceholder":5305},[5228,9734,9735],{"class":5230,"line":5287},[5228,9736,9737],{"class":5234},"\u002F\u002F ✅ ПРАВИЛЬНО: Завжди реєструйте обробник 'error'\n",[5228,9739,9740,9742,9744,9746,9748,9750,9752,9754,9756,9759,9761,9763],{"class":5230,"line":5302},[5228,9741,6326],{"class":5259},[5228,9743,5112],{"class":5249},[5228,9745,5981],{"class":5427},[5228,9747,5431],{"class":5249},[5228,9749,7896],{"class":5703},[5228,9751,6338],{"class":5249},[5228,9753,7907],{"class":5259},[5228,9755,5263],{"class":5249},[5228,9757,9758],{"class":5245},"Error",[5228,9760,6003],{"class":5249},[5228,9762,6006],{"class":5241},[5228,9764,5250],{"class":5249},[5228,9766,9767,9769,9771,9773,9775,9778,9780,9782,9784,9786],{"class":5230,"line":5309},[5228,9768,6356],{"class":5259},[5228,9770,5112],{"class":5249},[5228,9772,7907],{"class":5427},[5228,9774,5431],{"class":5249},[5228,9776,9777],{"class":5703},"'Виникла помилка:'",[5228,9779,5442],{"class":5249},[5228,9781,7907],{"class":5259},[5228,9783,5112],{"class":5249},[5228,9785,6341],{"class":5259},[5228,9787,5500],{"class":5249},[5228,9789,9790,9792,9794,9796,9798,9801,9803,9805,9807,9810],{"class":5230,"line":5318},[5228,9791,6356],{"class":5259},[5228,9793,5112],{"class":5249},[5228,9795,7907],{"class":5427},[5228,9797,5431],{"class":5249},[5228,9799,9800],{"class":5703},"'Stack trace:'",[5228,9802,5442],{"class":5249},[5228,9804,7907],{"class":5259},[5228,9806,5112],{"class":5249},[5228,9808,9809],{"class":5259},"stack",[5228,9811,5500],{"class":5249},[5228,9813,9814],{"class":5230,"line":5331},[5228,9815,9816],{"class":5249},"  \n",[5228,9818,9819],{"class":5230,"line":5343},[5228,9820,9821],{"class":5234},"  \u002F\u002F Тут можна додати логування, сповіщення, fallback-логіку\n",[5228,9823,9824],{"class":5230,"line":5354},[5228,9825,6045],{"class":5249},[5228,9827,9828],{"class":5230,"line":5360},[5228,9829,5306],{"emptyLinePlaceholder":5305},[5228,9831,9832,9834,9836,9838,9840,9842,9844,9846,9848,9850,9852],{"class":5230,"line":5378},[5228,9833,6326],{"class":5259},[5228,9835,5112],{"class":5249},[5228,9837,5864],{"class":5427},[5228,9839,5431],{"class":5249},[5228,9841,7896],{"class":5703},[5228,9843,5442],{"class":5249},[5228,9845,5960],{"class":5241},[5228,9847,9651],{"class":5427},[5228,9849,5431],{"class":5249},[5228,9851,9656],{"class":5703},[5228,9853,7854],{"class":5249},[5228,9855,9856],{"class":5230,"line":5394},[5228,9857,9858],{"class":5234},"\u002F\u002F Процес продовжить роботу, помилка оброблена\n",[5190,9860,9861],{},"Практичний приклад: обробка помилок у користувацькому класі:",[5219,9863,9865],{"className":5221,"code":9864,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nclass DatabaseConnection extends EventEmitter {\n  private reconnectAttempts = 0;\n  private maxReconnectAttempts = 5;\n\n  async connect(): Promise\u003Cvoid> {\n    try {\n      \u002F\u002F Імітація підключення до бази даних\n      await this.performConnection();\n      \n      this.emit('connected');\n      this.reconnectAttempts = 0;\n    } catch (error) {\n      this.reconnectAttempts++;\n\n      \u002F\u002F Генеруємо подію 'error' з об'єктом помилки\n      this.emit('error', error);\n\n      if (this.reconnectAttempts \u003C this.maxReconnectAttempts) {\n        console.log(`Спроба перепідключення ${this.reconnectAttempts}\u002F${this.maxReconnectAttempts}`);\n        \n        setTimeout(() => {\n          this.connect();\n        }, 1000 * this.reconnectAttempts); \u002F\u002F Exponential backoff\n      } else {\n        this.emit('error', new Error('Максимальну кількість спроб перепідключення вичерпано'));\n      }\n    }\n  }\n\n  private async performConnection(): Promise\u003Cvoid> {\n    \u002F\u002F Імітація з'єднання з можливою помилкою\n    if (Math.random() \u003C 0.7) {\n      throw new Error('ECONNREFUSED: Connection refused');\n    }\n  }\n}\n\nconst db = new DatabaseConnection();\n\n\u002F\u002F Обов'язково реєструємо обробник помилок\ndb.on('error', (error: Error) => {\n  console.error('Помилка бази даних:', error.message);\n});\n\ndb.on('connected', () => {\n  console.log('✅ З\\'єднання з базою даних встановлено');\n});\n\ndb.connect();\n",[5109,9866,9867,9883,9887,9900,9914,9928,9932,9949,9956,9961,9975,9980,9995,10010,10023,10034,10038,10043,10061,10065,10090,10131,10136,10148,10160,10182,10192,10218,10223,10227,10231,10235,10255,10260,10282,10298,10302,10306,10310,10314,10329,10333,10338,10365,10388,10392,10396,10414,10434,10438,10442],{"__ignoreMap":5224},[5228,9868,9869,9871,9873,9875,9877,9879,9881],{"class":5230,"line":5231},[5228,9870,5689],{"class":5480},[5228,9872,5692],{"class":5249},[5228,9874,5111],{"class":5259},[5228,9876,5697],{"class":5249},[5228,9878,5700],{"class":5480},[5228,9880,5704],{"class":5703},[5228,9882,5269],{"class":5249},[5228,9884,9885],{"class":5230,"line":5238},[5228,9886,5306],{"emptyLinePlaceholder":5305},[5228,9888,9889,9891,9894,9896,9898],{"class":5230,"line":5253},[5228,9890,5242],{"class":5241},[5228,9892,9893],{"class":5245}," DatabaseConnection",[5228,9895,5783],{"class":5241},[5228,9897,5786],{"class":5245},[5228,9899,5250],{"class":5249},[5228,9901,9902,9904,9907,9909,9912],{"class":5230,"line":5272},[5228,9903,5256],{"class":5241},[5228,9905,9906],{"class":5259}," reconnectAttempts",[5228,9908,5371],{"class":5249},[5228,9910,9911],{"class":7154},"0",[5228,9913,5269],{"class":5249},[5228,9915,9916,9918,9921,9923,9926],{"class":5230,"line":5287},[5228,9917,5256],{"class":5241},[5228,9919,9920],{"class":5259}," maxReconnectAttempts",[5228,9922,5371],{"class":5249},[5228,9924,9925],{"class":7154},"5",[5228,9927,5269],{"class":5249},[5228,9929,9930],{"class":5230,"line":5302},[5228,9931,5306],{"emptyLinePlaceholder":5305},[5228,9933,9934,9936,9939,9941,9943,9945,9947],{"class":5230,"line":5309},[5228,9935,5424],{"class":5241},[5228,9937,9938],{"class":5427}," connect",[5228,9940,8706],{"class":5249},[5228,9942,5456],{"class":5245},[5228,9944,5459],{"class":5249},[5228,9946,6522],{"class":5245},[5228,9948,5465],{"class":5249},[5228,9950,9951,9954],{"class":5230,"line":5318},[5228,9952,9953],{"class":5480},"    try",[5228,9955,5250],{"class":5249},[5228,9957,9958],{"class":5230,"line":5331},[5228,9959,9960],{"class":5234},"      \u002F\u002F Імітація підключення до бази даних\n",[5228,9962,9963,9966,9968,9970,9973],{"class":5230,"line":5343},[5228,9964,9965],{"class":5480},"      await",[5228,9967,5484],{"class":5241},[5228,9969,5112],{"class":5249},[5228,9971,9972],{"class":5427},"performConnection",[5228,9974,5965],{"class":5249},[5228,9976,9977],{"class":5230,"line":5354},[5228,9978,9979],{"class":5249},"      \n",[5228,9981,9982,9984,9986,9988,9990,9993],{"class":5230,"line":5360},[5228,9983,8467],{"class":5241},[5228,9985,5112],{"class":5249},[5228,9987,5864],{"class":5427},[5228,9989,5431],{"class":5249},[5228,9991,9992],{"class":5703},"'connected'",[5228,9994,5500],{"class":5249},[5228,9996,9997,9999,10001,10004,10006,10008],{"class":5230,"line":5378},[5228,9998,8467],{"class":5241},[5228,10000,5112],{"class":5249},[5228,10002,10003],{"class":5259},"reconnectAttempts",[5228,10005,5371],{"class":5249},[5228,10007,9911],{"class":7154},[5228,10009,5269],{"class":5249},[5228,10011,10012,10015,10017,10019,10021],{"class":5230,"line":5394},[5228,10013,10014],{"class":5249},"    } ",[5228,10016,9520],{"class":5480},[5228,10018,5102],{"class":5249},[5228,10020,7907],{"class":5259},[5228,10022,8462],{"class":5249},[5228,10024,10025,10027,10029,10031],{"class":5230,"line":5410},[5228,10026,8467],{"class":5241},[5228,10028,5112],{"class":5249},[5228,10030,10003],{"class":5259},[5228,10032,10033],{"class":5249},"++;\n",[5228,10035,10036],{"class":5230,"line":5416},[5228,10037,5306],{"emptyLinePlaceholder":5305},[5228,10039,10040],{"class":5230,"line":5421},[5228,10041,10042],{"class":5234},"      \u002F\u002F Генеруємо подію 'error' з об'єктом помилки\n",[5228,10044,10045,10047,10049,10051,10053,10055,10057,10059],{"class":5230,"line":5468},[5228,10046,8467],{"class":5241},[5228,10048,5112],{"class":5249},[5228,10050,5864],{"class":5427},[5228,10052,5431],{"class":5249},[5228,10054,7896],{"class":5703},[5228,10056,5442],{"class":5249},[5228,10058,7907],{"class":5259},[5228,10060,5500],{"class":5249},[5228,10062,10063],{"class":5230,"line":5503},[5228,10064,5306],{"emptyLinePlaceholder":5305},[5228,10066,10067,10070,10072,10074,10076,10078,10081,10083,10085,10088],{"class":5230,"line":5509},[5228,10068,10069],{"class":5480},"      if",[5228,10071,5102],{"class":5249},[5228,10073,8788],{"class":5241},[5228,10075,5112],{"class":5249},[5228,10077,10003],{"class":5259},[5228,10079,10080],{"class":5249}," \u003C ",[5228,10082,8788],{"class":5241},[5228,10084,5112],{"class":5249},[5228,10086,10087],{"class":5259},"maxReconnectAttempts",[5228,10089,8462],{"class":5249},[5228,10091,10092,10095,10097,10099,10101,10104,10106,10108,10110,10112,10114,10117,10119,10121,10123,10125,10127,10129],{"class":5230,"line":5515},[5228,10093,10094],{"class":5259},"        console",[5228,10096,5112],{"class":5249},[5228,10098,6361],{"class":5427},[5228,10100,5431],{"class":5249},[5228,10102,10103],{"class":5703},"`Спроба перепідключення ",[5228,10105,6540],{"class":5241},[5228,10107,8788],{"class":5241},[5228,10109,5112],{"class":7320},[5228,10111,10003],{"class":5259},[5228,10113,6545],{"class":5241},[5228,10115,10116],{"class":5703},"\u002F",[5228,10118,6540],{"class":5241},[5228,10120,8788],{"class":5241},[5228,10122,5112],{"class":7320},[5228,10124,10087],{"class":5259},[5228,10126,6545],{"class":5241},[5228,10128,6548],{"class":5703},[5228,10130,5500],{"class":5249},[5228,10132,10133],{"class":5230,"line":5543},[5228,10134,10135],{"class":5249},"        \n",[5228,10137,10138,10141,10144,10146],{"class":5230,"line":5565},[5228,10139,10140],{"class":5427},"        setTimeout",[5228,10142,10143],{"class":5249},"(() ",[5228,10145,6006],{"class":5241},[5228,10147,5250],{"class":5249},[5228,10149,10150,10153,10155,10158],{"class":5230,"line":5587},[5228,10151,10152],{"class":5241},"          this",[5228,10154,5112],{"class":5249},[5228,10156,10157],{"class":5427},"connect",[5228,10159,5965],{"class":5249},[5228,10161,10162,10165,10168,10171,10173,10175,10177,10179],{"class":5230,"line":5592},[5228,10163,10164],{"class":5249},"        }, ",[5228,10166,10167],{"class":7154},"1000",[5228,10169,10170],{"class":5249}," * ",[5228,10172,8788],{"class":5241},[5228,10174,5112],{"class":5249},[5228,10176,10003],{"class":5259},[5228,10178,6602],{"class":5249},[5228,10180,10181],{"class":5234},"\u002F\u002F Exponential backoff\n",[5228,10183,10184,10187,10190],{"class":5230,"line":5602},[5228,10185,10186],{"class":5249},"      } ",[5228,10188,10189],{"class":5480},"else",[5228,10191,5250],{"class":5249},[5228,10193,10194,10197,10199,10201,10203,10205,10207,10209,10211,10213,10216],{"class":5230,"line":5607},[5228,10195,10196],{"class":5241},"        this",[5228,10198,5112],{"class":5249},[5228,10200,5864],{"class":5427},[5228,10202,5431],{"class":5249},[5228,10204,7896],{"class":5703},[5228,10206,5442],{"class":5249},[5228,10208,5960],{"class":5241},[5228,10210,9651],{"class":5427},[5228,10212,5431],{"class":5249},[5228,10214,10215],{"class":5703},"'Максимальну кількість спроб перепідключення вичерпано'",[5228,10217,7854],{"class":5249},[5228,10219,10220],{"class":5230,"line":5949},[5228,10221,10222],{"class":5249},"      }\n",[5228,10224,10225],{"class":5230,"line":5968},[5228,10226,8487],{"class":5249},[5228,10228,10229],{"class":5230,"line":5973},[5228,10230,5413],{"class":5249},[5228,10232,10233],{"class":5230,"line":6011},[5228,10234,5306],{"emptyLinePlaceholder":5305},[5228,10236,10237,10239,10242,10245,10247,10249,10251,10253],{"class":5230,"line":6042},[5228,10238,5256],{"class":5241},[5228,10240,10241],{"class":5241}," async",[5228,10243,10244],{"class":5427}," performConnection",[5228,10246,8706],{"class":5249},[5228,10248,5456],{"class":5245},[5228,10250,5459],{"class":5249},[5228,10252,6522],{"class":5245},[5228,10254,5465],{"class":5249},[5228,10256,10257],{"class":5230,"line":6048},[5228,10258,10259],{"class":5234},"    \u002F\u002F Імітація з'єднання з можливою помилкою\n",[5228,10261,10262,10264,10266,10269,10271,10274,10277,10280],{"class":5230,"line":6053},[5228,10263,8450],{"class":5480},[5228,10265,5102],{"class":5249},[5228,10267,10268],{"class":5259},"Math",[5228,10270,5112],{"class":5249},[5228,10272,10273],{"class":5427},"random",[5228,10275,10276],{"class":5249},"() \u003C ",[5228,10278,10279],{"class":7154},"0.7",[5228,10281,8462],{"class":5249},[5228,10283,10284,10287,10289,10291,10293,10296],{"class":5230,"line":6084},[5228,10285,10286],{"class":5480},"      throw",[5228,10288,8342],{"class":5241},[5228,10290,9651],{"class":5427},[5228,10292,5431],{"class":5249},[5228,10294,10295],{"class":5703},"'ECONNREFUSED: Connection refused'",[5228,10297,5500],{"class":5249},[5228,10299,10300],{"class":5230,"line":6105},[5228,10301,8487],{"class":5249},[5228,10303,10304],{"class":5230,"line":6110},[5228,10305,5413],{"class":5249},[5228,10307,10308],{"class":5230,"line":6115},[5228,10309,5610],{"class":5249},[5228,10311,10312],{"class":5230,"line":6146},[5228,10313,5306],{"emptyLinePlaceholder":5305},[5228,10315,10316,10318,10321,10323,10325,10327],{"class":5230,"line":6163},[5228,10317,5952],{"class":5241},[5228,10319,10320],{"class":5474}," db",[5228,10322,5371],{"class":5249},[5228,10324,5960],{"class":5241},[5228,10326,9893],{"class":5427},[5228,10328,5965],{"class":5249},[5228,10330,10331],{"class":5230,"line":6168},[5228,10332,5306],{"emptyLinePlaceholder":5305},[5228,10334,10335],{"class":5230,"line":6173},[5228,10336,10337],{"class":5234},"\u002F\u002F Обов'язково реєструємо обробник помилок\n",[5228,10339,10340,10343,10345,10347,10349,10351,10353,10355,10357,10359,10361,10363],{"class":5230,"line":6179},[5228,10341,10342],{"class":5259},"db",[5228,10344,5112],{"class":5249},[5228,10346,5981],{"class":5427},[5228,10348,5431],{"class":5249},[5228,10350,7896],{"class":5703},[5228,10352,6338],{"class":5249},[5228,10354,7907],{"class":5259},[5228,10356,5263],{"class":5249},[5228,10358,9758],{"class":5245},[5228,10360,6003],{"class":5249},[5228,10362,6006],{"class":5241},[5228,10364,5250],{"class":5249},[5228,10366,10367,10369,10371,10373,10375,10378,10380,10382,10384,10386],{"class":5230,"line":6210},[5228,10368,6356],{"class":5259},[5228,10370,5112],{"class":5249},[5228,10372,7907],{"class":5427},[5228,10374,5431],{"class":5249},[5228,10376,10377],{"class":5703},"'Помилка бази даних:'",[5228,10379,5442],{"class":5249},[5228,10381,7907],{"class":5259},[5228,10383,5112],{"class":5249},[5228,10385,6341],{"class":5259},[5228,10387,5500],{"class":5249},[5228,10389,10390],{"class":5230,"line":6242},[5228,10391,6045],{"class":5249},[5228,10393,10394],{"class":5230,"line":8624},[5228,10395,5306],{"emptyLinePlaceholder":5305},[5228,10397,10398,10400,10402,10404,10406,10408,10410,10412],{"class":5230,"line":8629},[5228,10399,10342],{"class":5259},[5228,10401,5112],{"class":5249},[5228,10403,5981],{"class":5427},[5228,10405,5431],{"class":5249},[5228,10407,9992],{"class":5703},[5228,10409,6885],{"class":5249},[5228,10411,6006],{"class":5241},[5228,10413,5250],{"class":5249},[5228,10415,10416,10418,10420,10422,10424,10427,10429,10432],{"class":5230,"line":8665},[5228,10417,6356],{"class":5259},[5228,10419,5112],{"class":5249},[5228,10421,6361],{"class":5427},[5228,10423,5431],{"class":5249},[5228,10425,10426],{"class":5703},"'✅ З",[5228,10428,9480],{"class":9479},[5228,10430,10431],{"class":5703},"єднання з базою даних встановлено'",[5228,10433,5500],{"class":5249},[5228,10435,10436],{"class":5230,"line":8688},[5228,10437,6045],{"class":5249},[5228,10439,10440],{"class":5230,"line":8693},[5228,10441,5306],{"emptyLinePlaceholder":5305},[5228,10443,10444,10446,10448,10450],{"class":5230,"line":8698},[5228,10445,10342],{"class":5259},[5228,10447,5112],{"class":5249},[5228,10449,10157],{"class":5427},[5228,10451,5965],{"class":5249},[8037,10453,10454,10457,10458,10460],{},[5099,10455,10456],{},"Критично важливо",": Завжди реєструйте обробник події ",[5109,10459,7907],{}," для всіх екземплярів EventEmitter у продакшн-коді. Необроблена помилка призведе до аварійного завершення процесу та downtime сервісу.",[5185,10462,10464],{"id":10463},"передача-даних-через-події-типізовані-події-у-typescript","Передача даних через події: типізовані події у TypeScript",[5190,10466,10467],{},"При роботі з TypeScript рекомендується створювати типізовані інтерфейси для подій, щоб забезпечити безпеку типів та автодоповнення у IDE:",[5219,10469,10471],{"className":5221,"code":10470,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\n\u002F\u002F Визначаємо типи подій та їх аргументів\ninterface ServerEvents {\n  'request': (method: string, url: string, timestamp: Date) => void;\n  'response': (statusCode: number, duration: number) => void;\n  'error': (error: Error, context: { method: string; url: string }) => void;\n  'shutdown': () => void;\n}\n\n\u002F\u002F Розширюємо EventEmitter з типізацією\nclass TypedEventEmitter\u003CT extends Record\u003Cstring, (...args: any[]) => void>> {\n  private emitter = new EventEmitter();\n\n  on\u003CK extends keyof T>(event: K, listener: T[K]): this {\n    this.emitter.on(event as string, listener as (...args: any[]) => void);\n    return this;\n  }\n\n  once\u003CK extends keyof T>(event: K, listener: T[K]): this {\n    this.emitter.once(event as string, listener as (...args: any[]) => void);\n    return this;\n  }\n\n  emit\u003CK extends keyof T>(event: K, ...args: Parameters\u003CT[K]>): boolean {\n    return this.emitter.emit(event as string, ...args);\n  }\n\n  off\u003CK extends keyof T>(event: K, listener: T[K]): this {\n    this.emitter.off(event as string, listener as (...args: any[]) => void);\n    return this;\n  }\n}\n\n\u002F\u002F Використання типізованого EventEmitter\nconst server = new TypedEventEmitter\u003CServerEvents>();\n\n\u002F\u002F ✅ TypeScript перевіряє типи аргументів\nserver.on('request', (method, url, timestamp) => {\n  \u002F\u002F method: string, url: string, timestamp: Date\n  console.log(`${method} ${url} — ${timestamp.toISOString()}`);\n});\n\nserver.on('response', (statusCode, duration) => {\n  \u002F\u002F statusCode: number, duration: number\n  console.log(`Відповідь: ${statusCode} (${duration}ms)`);\n});\n\nserver.on('error', (error, context) => {\n  \u002F\u002F error: Error, context: { method: string; url: string }\n  console.error(`Помилка: ${error.message}`, context);\n});\n\n\u002F\u002F TypeScript попереджає про невірні типи аргументів\nserver.emit('request', 'GET', '\u002Fapi\u002Fusers', new Date());\nserver.emit('response', 200, 45);\nserver.emit('error', new Error('Internal Server Error'), { method: 'POST', url: '\u002Fapi\u002Forders' });\n\n\u002F\u002F ❌ TypeScript помилка: Argument of type 'number' is not assignable to parameter of type 'string'\n\u002F\u002F server.emit('request', 123, '\u002Fapi\u002Fusers', new Date());\n",[5109,10472,10473,10489,10493,10498,10507,10548,10579,10622,10636,10640,10644,10649,10691,10705,10709,10755,10800,10808,10812,10816,10857,10899,10907,10911,10915,10964,10992,10996,11000,11041,11083,11091,11095,11099,11103,11108,11128,11132,11137,11168,11173,11217,11221,11225,11252,11257,11289,11293,11297,11323,11328,11359,11363,11367,11372,11402,11426,11468,11472,11477],{"__ignoreMap":5224},[5228,10474,10475,10477,10479,10481,10483,10485,10487],{"class":5230,"line":5231},[5228,10476,5689],{"class":5480},[5228,10478,5692],{"class":5249},[5228,10480,5111],{"class":5259},[5228,10482,5697],{"class":5249},[5228,10484,5700],{"class":5480},[5228,10486,5704],{"class":5703},[5228,10488,5269],{"class":5249},[5228,10490,10491],{"class":5230,"line":5238},[5228,10492,5306],{"emptyLinePlaceholder":5305},[5228,10494,10495],{"class":5230,"line":5253},[5228,10496,10497],{"class":5234},"\u002F\u002F Визначаємо типи подій та їх аргументів\n",[5228,10499,10500,10502,10505],{"class":5230,"line":5272},[5228,10501,5715],{"class":5241},[5228,10503,10504],{"class":5245}," ServerEvents",[5228,10506,5250],{"class":5249},[5228,10508,10509,10512,10515,10518,10520,10522,10524,10527,10529,10531,10533,10535,10537,10539,10541,10543,10546],{"class":5230,"line":5287},[5228,10510,10511],{"class":5703},"  'request'",[5228,10513,10514],{"class":5249},": (",[5228,10516,10517],{"class":5259},"method",[5228,10519,5263],{"class":5249},[5228,10521,5439],{"class":5245},[5228,10523,5442],{"class":5249},[5228,10525,10526],{"class":5259},"url",[5228,10528,5263],{"class":5249},[5228,10530,5439],{"class":5245},[5228,10532,5442],{"class":5249},[5228,10534,7242],{"class":5259},[5228,10536,5263],{"class":5249},[5228,10538,7247],{"class":5245},[5228,10540,6003],{"class":5249},[5228,10542,6006],{"class":5241},[5228,10544,10545],{"class":5245}," void",[5228,10547,5269],{"class":5249},[5228,10549,10550,10553,10555,10558,10560,10562,10564,10567,10569,10571,10573,10575,10577],{"class":5230,"line":5302},[5228,10551,10552],{"class":5703},"  'response'",[5228,10554,10514],{"class":5249},[5228,10556,10557],{"class":5259},"statusCode",[5228,10559,5263],{"class":5249},[5228,10561,5764],{"class":5245},[5228,10563,5442],{"class":5249},[5228,10565,10566],{"class":5259},"duration",[5228,10568,5263],{"class":5249},[5228,10570,5764],{"class":5245},[5228,10572,6003],{"class":5249},[5228,10574,6006],{"class":5241},[5228,10576,10545],{"class":5245},[5228,10578,5269],{"class":5249},[5228,10580,10581,10584,10586,10588,10590,10592,10594,10597,10600,10602,10604,10606,10608,10610,10612,10614,10616,10618,10620],{"class":5230,"line":5309},[5228,10582,10583],{"class":5703},"  'error'",[5228,10585,10514],{"class":5249},[5228,10587,7907],{"class":5259},[5228,10589,5263],{"class":5249},[5228,10591,9758],{"class":5245},[5228,10593,5442],{"class":5249},[5228,10595,10596],{"class":5259},"context",[5228,10598,10599],{"class":5249},": { ",[5228,10601,10517],{"class":5259},[5228,10603,5263],{"class":5249},[5228,10605,5439],{"class":5245},[5228,10607,8917],{"class":5249},[5228,10609,10526],{"class":5259},[5228,10611,5263],{"class":5249},[5228,10613,5439],{"class":5245},[5228,10615,9359],{"class":5249},[5228,10617,6006],{"class":5241},[5228,10619,10545],{"class":5245},[5228,10621,5269],{"class":5249},[5228,10623,10624,10627,10630,10632,10634],{"class":5230,"line":5318},[5228,10625,10626],{"class":5703},"  'shutdown'",[5228,10628,10629],{"class":5249},": () ",[5228,10631,6006],{"class":5241},[5228,10633,10545],{"class":5245},[5228,10635,5269],{"class":5249},[5228,10637,10638],{"class":5230,"line":5331},[5228,10639,5610],{"class":5249},[5228,10641,10642],{"class":5230,"line":5343},[5228,10643,5306],{"emptyLinePlaceholder":5305},[5228,10645,10646],{"class":5230,"line":5354},[5228,10647,10648],{"class":5234},"\u002F\u002F Розширюємо EventEmitter з типізацією\n",[5228,10650,10651,10653,10656,10658,10661,10663,10666,10668,10670,10673,10676,10678,10681,10684,10686,10688],{"class":5230,"line":5360},[5228,10652,5242],{"class":5241},[5228,10654,10655],{"class":5245}," TypedEventEmitter",[5228,10657,5459],{"class":5249},[5228,10659,10660],{"class":5245},"T",[5228,10662,5783],{"class":5241},[5228,10664,10665],{"class":5245}," Record",[5228,10667,5459],{"class":5249},[5228,10669,5439],{"class":5245},[5228,10671,10672],{"class":5249},", (...",[5228,10674,10675],{"class":5259},"args",[5228,10677,5263],{"class":5249},[5228,10679,10680],{"class":5245},"any",[5228,10682,10683],{"class":5249},"[]) ",[5228,10685,6006],{"class":5241},[5228,10687,10545],{"class":5245},[5228,10689,10690],{"class":5249},">> {\n",[5228,10692,10693,10695,10697,10699,10701,10703],{"class":5230,"line":5378},[5228,10694,5256],{"class":5241},[5228,10696,6304],{"class":5259},[5228,10698,5371],{"class":5249},[5228,10700,5960],{"class":5241},[5228,10702,5786],{"class":5427},[5228,10704,5965],{"class":5249},[5228,10706,10707],{"class":5230,"line":5394},[5228,10708,5306],{"emptyLinePlaceholder":5305},[5228,10710,10711,10714,10716,10719,10721,10724,10727,10730,10732,10734,10736,10738,10740,10742,10744,10746,10748,10751,10753],{"class":5230,"line":5410},[5228,10712,10713],{"class":5427},"  on",[5228,10715,5459],{"class":5249},[5228,10717,10718],{"class":5245},"K",[5228,10720,5783],{"class":5241},[5228,10722,10723],{"class":5241}," keyof",[5228,10725,10726],{"class":5245}," T",[5228,10728,10729],{"class":5249},">(",[5228,10731,5995],{"class":5259},[5228,10733,5263],{"class":5249},[5228,10735,10718],{"class":5245},[5228,10737,5442],{"class":5249},[5228,10739,6451],{"class":5259},[5228,10741,5263],{"class":5249},[5228,10743,10660],{"class":5245},[5228,10745,9031],{"class":5249},[5228,10747,10718],{"class":5245},[5228,10749,10750],{"class":5249},"]): ",[5228,10752,8788],{"class":5245},[5228,10754,5250],{"class":5249},[5228,10756,10757,10759,10761,10763,10765,10767,10769,10771,10774,10777,10779,10781,10783,10786,10788,10790,10792,10794,10796,10798],{"class":5230,"line":5416},[5228,10758,5363],{"class":5241},[5228,10760,5112],{"class":5249},[5228,10762,6326],{"class":5259},[5228,10764,5112],{"class":5249},[5228,10766,5981],{"class":5427},[5228,10768,5431],{"class":5249},[5228,10770,5995],{"class":5259},[5228,10772,10773],{"class":5480}," as",[5228,10775,10776],{"class":5245}," string",[5228,10778,5442],{"class":5249},[5228,10780,6451],{"class":5259},[5228,10782,10773],{"class":5480},[5228,10784,10785],{"class":5249}," (...",[5228,10787,10675],{"class":5259},[5228,10789,5263],{"class":5249},[5228,10791,10680],{"class":5245},[5228,10793,10683],{"class":5249},[5228,10795,6006],{"class":5241},[5228,10797,10545],{"class":5245},[5228,10799,5500],{"class":5249},[5228,10801,10802,10804,10806],{"class":5230,"line":5421},[5228,10803,5595],{"class":5480},[5228,10805,5484],{"class":5241},[5228,10807,5269],{"class":5249},[5228,10809,10810],{"class":5230,"line":5468},[5228,10811,5413],{"class":5249},[5228,10813,10814],{"class":5230,"line":5503},[5228,10815,5306],{"emptyLinePlaceholder":5305},[5228,10817,10818,10821,10823,10825,10827,10829,10831,10833,10835,10837,10839,10841,10843,10845,10847,10849,10851,10853,10855],{"class":5230,"line":5509},[5228,10819,10820],{"class":5427},"  once",[5228,10822,5459],{"class":5249},[5228,10824,10718],{"class":5245},[5228,10826,5783],{"class":5241},[5228,10828,10723],{"class":5241},[5228,10830,10726],{"class":5245},[5228,10832,10729],{"class":5249},[5228,10834,5995],{"class":5259},[5228,10836,5263],{"class":5249},[5228,10838,10718],{"class":5245},[5228,10840,5442],{"class":5249},[5228,10842,6451],{"class":5259},[5228,10844,5263],{"class":5249},[5228,10846,10660],{"class":5245},[5228,10848,9031],{"class":5249},[5228,10850,10718],{"class":5245},[5228,10852,10750],{"class":5249},[5228,10854,8788],{"class":5245},[5228,10856,5250],{"class":5249},[5228,10858,10859,10861,10863,10865,10867,10869,10871,10873,10875,10877,10879,10881,10883,10885,10887,10889,10891,10893,10895,10897],{"class":5230,"line":5515},[5228,10860,5363],{"class":5241},[5228,10862,5112],{"class":5249},[5228,10864,6326],{"class":5259},[5228,10866,5112],{"class":5249},[5228,10868,6877],{"class":5427},[5228,10870,5431],{"class":5249},[5228,10872,5995],{"class":5259},[5228,10874,10773],{"class":5480},[5228,10876,10776],{"class":5245},[5228,10878,5442],{"class":5249},[5228,10880,6451],{"class":5259},[5228,10882,10773],{"class":5480},[5228,10884,10785],{"class":5249},[5228,10886,10675],{"class":5259},[5228,10888,5263],{"class":5249},[5228,10890,10680],{"class":5245},[5228,10892,10683],{"class":5249},[5228,10894,6006],{"class":5241},[5228,10896,10545],{"class":5245},[5228,10898,5500],{"class":5249},[5228,10900,10901,10903,10905],{"class":5230,"line":5543},[5228,10902,5595],{"class":5480},[5228,10904,5484],{"class":5241},[5228,10906,5269],{"class":5249},[5228,10908,10909],{"class":5230,"line":5565},[5228,10910,5413],{"class":5249},[5228,10912,10913],{"class":5230,"line":5587},[5228,10914,5306],{"emptyLinePlaceholder":5305},[5228,10916,10917,10920,10922,10924,10926,10928,10930,10932,10934,10936,10938,10941,10943,10945,10948,10950,10952,10954,10956,10959,10962],{"class":5230,"line":5592},[5228,10918,10919],{"class":5427},"  emit",[5228,10921,5459],{"class":5249},[5228,10923,10718],{"class":5245},[5228,10925,5783],{"class":5241},[5228,10927,10723],{"class":5241},[5228,10929,10726],{"class":5245},[5228,10931,10729],{"class":5249},[5228,10933,5995],{"class":5259},[5228,10935,5263],{"class":5249},[5228,10937,10718],{"class":5245},[5228,10939,10940],{"class":5249},", ...",[5228,10942,10675],{"class":5259},[5228,10944,5263],{"class":5249},[5228,10946,10947],{"class":5245},"Parameters",[5228,10949,5459],{"class":5249},[5228,10951,10660],{"class":5245},[5228,10953,9031],{"class":5249},[5228,10955,10718],{"class":5245},[5228,10957,10958],{"class":5249},"]>): ",[5228,10960,10961],{"class":5245},"boolean",[5228,10963,5250],{"class":5249},[5228,10965,10966,10968,10970,10972,10974,10976,10978,10980,10982,10984,10986,10988,10990],{"class":5230,"line":5602},[5228,10967,5595],{"class":5480},[5228,10969,5484],{"class":5241},[5228,10971,5112],{"class":5249},[5228,10973,6326],{"class":5259},[5228,10975,5112],{"class":5249},[5228,10977,5864],{"class":5427},[5228,10979,5431],{"class":5249},[5228,10981,5995],{"class":5259},[5228,10983,10773],{"class":5480},[5228,10985,10776],{"class":5245},[5228,10987,10940],{"class":5249},[5228,10989,10675],{"class":5259},[5228,10991,5500],{"class":5249},[5228,10993,10994],{"class":5230,"line":5607},[5228,10995,5413],{"class":5249},[5228,10997,10998],{"class":5230,"line":5949},[5228,10999,5306],{"emptyLinePlaceholder":5305},[5228,11001,11002,11005,11007,11009,11011,11013,11015,11017,11019,11021,11023,11025,11027,11029,11031,11033,11035,11037,11039],{"class":5230,"line":5968},[5228,11003,11004],{"class":5427},"  off",[5228,11006,5459],{"class":5249},[5228,11008,10718],{"class":5245},[5228,11010,5783],{"class":5241},[5228,11012,10723],{"class":5241},[5228,11014,10726],{"class":5245},[5228,11016,10729],{"class":5249},[5228,11018,5995],{"class":5259},[5228,11020,5263],{"class":5249},[5228,11022,10718],{"class":5245},[5228,11024,5442],{"class":5249},[5228,11026,6451],{"class":5259},[5228,11028,5263],{"class":5249},[5228,11030,10660],{"class":5245},[5228,11032,9031],{"class":5249},[5228,11034,10718],{"class":5245},[5228,11036,10750],{"class":5249},[5228,11038,8788],{"class":5245},[5228,11040,5250],{"class":5249},[5228,11042,11043,11045,11047,11049,11051,11053,11055,11057,11059,11061,11063,11065,11067,11069,11071,11073,11075,11077,11079,11081],{"class":5230,"line":5973},[5228,11044,5363],{"class":5241},[5228,11046,5112],{"class":5249},[5228,11048,6326],{"class":5259},[5228,11050,5112],{"class":5249},[5228,11052,7721],{"class":5427},[5228,11054,5431],{"class":5249},[5228,11056,5995],{"class":5259},[5228,11058,10773],{"class":5480},[5228,11060,10776],{"class":5245},[5228,11062,5442],{"class":5249},[5228,11064,6451],{"class":5259},[5228,11066,10773],{"class":5480},[5228,11068,10785],{"class":5249},[5228,11070,10675],{"class":5259},[5228,11072,5263],{"class":5249},[5228,11074,10680],{"class":5245},[5228,11076,10683],{"class":5249},[5228,11078,6006],{"class":5241},[5228,11080,10545],{"class":5245},[5228,11082,5500],{"class":5249},[5228,11084,11085,11087,11089],{"class":5230,"line":6011},[5228,11086,5595],{"class":5480},[5228,11088,5484],{"class":5241},[5228,11090,5269],{"class":5249},[5228,11092,11093],{"class":5230,"line":6042},[5228,11094,5413],{"class":5249},[5228,11096,11097],{"class":5230,"line":6048},[5228,11098,5610],{"class":5249},[5228,11100,11101],{"class":5230,"line":6053},[5228,11102,5306],{"emptyLinePlaceholder":5305},[5228,11104,11105],{"class":5230,"line":6084},[5228,11106,11107],{"class":5234},"\u002F\u002F Використання типізованого EventEmitter\n",[5228,11109,11110,11112,11114,11116,11118,11120,11122,11125],{"class":5230,"line":6105},[5228,11111,5952],{"class":5241},[5228,11113,7078],{"class":5474},[5228,11115,5371],{"class":5249},[5228,11117,5960],{"class":5241},[5228,11119,10655],{"class":5427},[5228,11121,5459],{"class":5249},[5228,11123,11124],{"class":5245},"ServerEvents",[5228,11126,11127],{"class":5249},">();\n",[5228,11129,11130],{"class":5230,"line":6110},[5228,11131,5306],{"emptyLinePlaceholder":5305},[5228,11133,11134],{"class":5230,"line":6115},[5228,11135,11136],{"class":5234},"\u002F\u002F ✅ TypeScript перевіряє типи аргументів\n",[5228,11138,11139,11141,11143,11145,11147,11150,11152,11154,11156,11158,11160,11162,11164,11166],{"class":5230,"line":6146},[5228,11140,7144],{"class":5259},[5228,11142,5112],{"class":5249},[5228,11144,5981],{"class":5427},[5228,11146,5431],{"class":5249},[5228,11148,11149],{"class":5703},"'request'",[5228,11151,6338],{"class":5249},[5228,11153,10517],{"class":5259},[5228,11155,5442],{"class":5249},[5228,11157,10526],{"class":5259},[5228,11159,5442],{"class":5249},[5228,11161,7242],{"class":5259},[5228,11163,6003],{"class":5249},[5228,11165,6006],{"class":5241},[5228,11167,5250],{"class":5249},[5228,11169,11170],{"class":5230,"line":6163},[5228,11171,11172],{"class":5234},"  \u002F\u002F method: string, url: string, timestamp: Date\n",[5228,11174,11175,11177,11179,11181,11183,11185,11187,11189,11191,11194,11196,11198,11201,11203,11205,11207,11209,11211,11213,11215],{"class":5230,"line":6168},[5228,11176,6356],{"class":5259},[5228,11178,5112],{"class":5249},[5228,11180,6361],{"class":5427},[5228,11182,5431],{"class":5249},[5228,11184,6548],{"class":5703},[5228,11186,6540],{"class":5241},[5228,11188,10517],{"class":5259},[5228,11190,6545],{"class":5241},[5228,11192,11193],{"class":5241}," ${",[5228,11195,10526],{"class":5259},[5228,11197,6545],{"class":5241},[5228,11199,11200],{"class":5703}," — ",[5228,11202,6540],{"class":5241},[5228,11204,7242],{"class":5259},[5228,11206,5112],{"class":7320},[5228,11208,7323],{"class":5427},[5228,11210,7326],{"class":7320},[5228,11212,6545],{"class":5241},[5228,11214,6548],{"class":5703},[5228,11216,5500],{"class":5249},[5228,11218,11219],{"class":5230,"line":6173},[5228,11220,6045],{"class":5249},[5228,11222,11223],{"class":5230,"line":6179},[5228,11224,5306],{"emptyLinePlaceholder":5305},[5228,11226,11227,11229,11231,11233,11235,11238,11240,11242,11244,11246,11248,11250],{"class":5230,"line":6210},[5228,11228,7144],{"class":5259},[5228,11230,5112],{"class":5249},[5228,11232,5981],{"class":5427},[5228,11234,5431],{"class":5249},[5228,11236,11237],{"class":5703},"'response'",[5228,11239,6338],{"class":5249},[5228,11241,10557],{"class":5259},[5228,11243,5442],{"class":5249},[5228,11245,10566],{"class":5259},[5228,11247,6003],{"class":5249},[5228,11249,6006],{"class":5241},[5228,11251,5250],{"class":5249},[5228,11253,11254],{"class":5230,"line":6242},[5228,11255,11256],{"class":5234},"  \u002F\u002F statusCode: number, duration: number\n",[5228,11258,11259,11261,11263,11265,11267,11270,11272,11274,11276,11278,11280,11282,11284,11287],{"class":5230,"line":8624},[5228,11260,6356],{"class":5259},[5228,11262,5112],{"class":5249},[5228,11264,6361],{"class":5427},[5228,11266,5431],{"class":5249},[5228,11268,11269],{"class":5703},"`Відповідь: ",[5228,11271,6540],{"class":5241},[5228,11273,10557],{"class":5259},[5228,11275,6545],{"class":5241},[5228,11277,5102],{"class":5703},[5228,11279,6540],{"class":5241},[5228,11281,10566],{"class":5259},[5228,11283,6545],{"class":5241},[5228,11285,11286],{"class":5703},"ms)`",[5228,11288,5500],{"class":5249},[5228,11290,11291],{"class":5230,"line":8629},[5228,11292,6045],{"class":5249},[5228,11294,11295],{"class":5230,"line":8665},[5228,11296,5306],{"emptyLinePlaceholder":5305},[5228,11298,11299,11301,11303,11305,11307,11309,11311,11313,11315,11317,11319,11321],{"class":5230,"line":8688},[5228,11300,7144],{"class":5259},[5228,11302,5112],{"class":5249},[5228,11304,5981],{"class":5427},[5228,11306,5431],{"class":5249},[5228,11308,7896],{"class":5703},[5228,11310,6338],{"class":5249},[5228,11312,7907],{"class":5259},[5228,11314,5442],{"class":5249},[5228,11316,10596],{"class":5259},[5228,11318,6003],{"class":5249},[5228,11320,6006],{"class":5241},[5228,11322,5250],{"class":5249},[5228,11324,11325],{"class":5230,"line":8693},[5228,11326,11327],{"class":5234},"  \u002F\u002F error: Error, context: { method: string; url: string }\n",[5228,11329,11330,11332,11334,11336,11338,11341,11343,11345,11347,11349,11351,11353,11355,11357],{"class":5230,"line":8698},[5228,11331,6356],{"class":5259},[5228,11333,5112],{"class":5249},[5228,11335,7907],{"class":5427},[5228,11337,5431],{"class":5249},[5228,11339,11340],{"class":5703},"`Помилка: ",[5228,11342,6540],{"class":5241},[5228,11344,7907],{"class":5259},[5228,11346,5112],{"class":7320},[5228,11348,6341],{"class":5259},[5228,11350,6545],{"class":5241},[5228,11352,6548],{"class":5703},[5228,11354,5442],{"class":5249},[5228,11356,10596],{"class":5259},[5228,11358,5500],{"class":5249},[5228,11360,11361],{"class":5230,"line":8717},[5228,11362,6045],{"class":5249},[5228,11364,11365],{"class":5230,"line":8768},[5228,11366,5306],{"emptyLinePlaceholder":5305},[5228,11368,11369],{"class":5230,"line":8807},[5228,11370,11371],{"class":5234},"\u002F\u002F TypeScript попереджає про невірні типи аргументів\n",[5228,11373,11374,11376,11378,11380,11382,11384,11386,11389,11391,11394,11396,11398,11400],{"class":5230,"line":8812},[5228,11375,7144],{"class":5259},[5228,11377,5112],{"class":5249},[5228,11379,5864],{"class":5427},[5228,11381,5431],{"class":5249},[5228,11383,11149],{"class":5703},[5228,11385,5442],{"class":5249},[5228,11387,11388],{"class":5703},"'GET'",[5228,11390,5442],{"class":5249},[5228,11392,11393],{"class":5703},"'\u002Fapi\u002Fusers'",[5228,11395,5442],{"class":5249},[5228,11397,5960],{"class":5241},[5228,11399,7369],{"class":5427},[5228,11401,7372],{"class":5249},[5228,11403,11404,11406,11408,11410,11412,11414,11416,11419,11421,11424],{"class":5230,"line":8837},[5228,11405,7144],{"class":5259},[5228,11407,5112],{"class":5249},[5228,11409,5864],{"class":5427},[5228,11411,5431],{"class":5249},[5228,11413,11237],{"class":5703},[5228,11415,5442],{"class":5249},[5228,11417,11418],{"class":7154},"200",[5228,11420,5442],{"class":5249},[5228,11422,11423],{"class":7154},"45",[5228,11425,5500],{"class":5249},[5228,11427,11428,11430,11432,11434,11436,11438,11440,11442,11444,11446,11449,11452,11455,11458,11460,11463,11466],{"class":5230,"line":8842},[5228,11429,7144],{"class":5259},[5228,11431,5112],{"class":5249},[5228,11433,5864],{"class":5427},[5228,11435,5431],{"class":5249},[5228,11437,7896],{"class":5703},[5228,11439,5442],{"class":5249},[5228,11441,5960],{"class":5241},[5228,11443,9651],{"class":5427},[5228,11445,5431],{"class":5249},[5228,11447,11448],{"class":5703},"'Internal Server Error'",[5228,11450,11451],{"class":5249},"), { ",[5228,11453,11454],{"class":5259},"method:",[5228,11456,11457],{"class":5703}," 'POST'",[5228,11459,5442],{"class":5249},[5228,11461,11462],{"class":5259},"url:",[5228,11464,11465],{"class":5703}," '\u002Fapi\u002Forders'",[5228,11467,8877],{"class":5249},[5228,11469,11470],{"class":5230,"line":8880},[5228,11471,5306],{"emptyLinePlaceholder":5305},[5228,11473,11474],{"class":5230,"line":8892},[5228,11475,11476],{"class":5234},"\u002F\u002F ❌ TypeScript помилка: Argument of type 'number' is not assignable to parameter of type 'string'\n",[5228,11478,11479],{"class":5230,"line":8897},[5228,11480,11481],{"class":5234},"\u002F\u002F server.emit('request', 123, '\u002Fapi\u002Fusers', new Date());\n",[5190,11483,11484,11485,11488],{},"Такий підхід забезпечує ",[5099,11486,11487],{},"compile-time"," безпеку типів та зменшує ймовірність помилок під час рефакторингу коду.",[6252,11490,11491,11492,11495,11496,11499],{},"У бібліотеках ",[5109,11493,11494],{},"typed-emitter"," або ",[5109,11497,11498],{},"eventemitter3"," є готові реалізації типізованих EventEmitter з розширеним функціоналом. Проте для більшості проєктів достатньо базового класу EventEmitter із TypeScript інтерфейсами.",[5185,11501,11503],{"id":11502},"візуалізація-життєвий-цикл-подій-у-eventemitter","Візуалізація: життєвий цикл подій у EventEmitter",[5190,11505,11506],{},"Розглянемо діаграму послідовності, що ілюструє взаємодію компонентів через події:",[11508,11509,11511],"plant-uml",{"alt":11510},"Життєвий цикл подій у EventEmitter",[5219,11512,11516],{"className":11513,"code":11514,"language":11515,"meta":5224,"style":5224},"language-plantuml shiki shiki-themes light-plus dark-plus dark-plus","@startuml\nskinparam style plain\nskinparam backgroundColor #FFFFFF\nautonumber\n\nparticipant \"OrderService\\n(EventEmitter)\" as Order #DBEAFE\nparticipant \"EmailService\\n(Listener)\" as Email #E2E8F0\nparticipant \"InventoryService\\n(Listener)\" as Inventory #E2E8F0\nparticipant \"AnalyticsService\\n(Listener)\" as Analytics #E2E8F0\n\n== Ініціалізація: реєстрація слухачів ==\n\nEmail -> Order : .on('orderCreated', handler)\nnote right: Підписка Email Service\nInventory -> Order : .on('orderCreated', handler)\nnote right: Підписка Inventory Service\nAnalytics -> Order : .on('orderCreated', handler)\nnote right: Підписка Analytics Service\n\nnote over Order, Analytics #DCFCE7\n  OrderService НЕ ЗНАЄ про існування конкретних сервісів.\n  Сервіси самостійно підписуються на події.\nend note\n\n== Виконання бізнес-логіки ==\n\nOrder -> Order : createOrder(userId, items)\nactivate Order\n\nOrder -> Order : saveToDatabase()\nnote right: Зберігаємо замовлення\n\nOrder -> Email : emit('orderCreated', event)\nactivate Email\nEmail -> Email : sendConfirmation(email)\nEmail --> Order : (асинхронна операція завершена)\ndeactivate Email\n\nOrder -> Inventory : emit('orderCreated', event)\nactivate Inventory\nInventory -> Inventory : decreaseStock(items)\nInventory --> Order : (асинхронна операція завершена)\ndeactivate Inventory\n\nOrder -> Analytics : emit('orderCreated', event)\nactivate Analytics\nAnalytics -> Analytics : trackPurchase(orderId)\nAnalytics --> Order : (асинхронна операція завершена)\ndeactivate Analytics\n\nOrder --> Order : return order\ndeactivate Order\n\nnote over Order, Analytics #FEF3C7\n  Всі слухачі викликані послідовно.\n  OrderService не чекає завершення асинхронних операцій.\nend note\n\n@enduml\n","plantuml",[5109,11517,11518,11523,11528,11533,11538,11542,11547,11552,11557,11562,11566,11571,11575,11580,11585,11590,11595,11600,11605,11609,11614,11619,11624,11629,11633,11638,11642,11647,11652,11656,11661,11666,11670,11675,11680,11685,11690,11695,11699,11704,11709,11714,11719,11724,11728,11733,11738,11743,11748,11753,11757,11762,11767,11771,11776,11781,11786,11790,11794],{"__ignoreMap":5224},[5228,11519,11520],{"class":5230,"line":5231},[5228,11521,11522],{},"@startuml\n",[5228,11524,11525],{"class":5230,"line":5238},[5228,11526,11527],{},"skinparam style plain\n",[5228,11529,11530],{"class":5230,"line":5253},[5228,11531,11532],{},"skinparam backgroundColor #FFFFFF\n",[5228,11534,11535],{"class":5230,"line":5272},[5228,11536,11537],{},"autonumber\n",[5228,11539,11540],{"class":5230,"line":5287},[5228,11541,5306],{"emptyLinePlaceholder":5305},[5228,11543,11544],{"class":5230,"line":5302},[5228,11545,11546],{},"participant \"OrderService\\n(EventEmitter)\" as Order #DBEAFE\n",[5228,11548,11549],{"class":5230,"line":5309},[5228,11550,11551],{},"participant \"EmailService\\n(Listener)\" as Email #E2E8F0\n",[5228,11553,11554],{"class":5230,"line":5318},[5228,11555,11556],{},"participant \"InventoryService\\n(Listener)\" as Inventory #E2E8F0\n",[5228,11558,11559],{"class":5230,"line":5331},[5228,11560,11561],{},"participant \"AnalyticsService\\n(Listener)\" as Analytics #E2E8F0\n",[5228,11563,11564],{"class":5230,"line":5343},[5228,11565,5306],{"emptyLinePlaceholder":5305},[5228,11567,11568],{"class":5230,"line":5354},[5228,11569,11570],{},"== Ініціалізація: реєстрація слухачів ==\n",[5228,11572,11573],{"class":5230,"line":5360},[5228,11574,5306],{"emptyLinePlaceholder":5305},[5228,11576,11577],{"class":5230,"line":5378},[5228,11578,11579],{},"Email -> Order : .on('orderCreated', handler)\n",[5228,11581,11582],{"class":5230,"line":5394},[5228,11583,11584],{},"note right: Підписка Email Service\n",[5228,11586,11587],{"class":5230,"line":5410},[5228,11588,11589],{},"Inventory -> Order : .on('orderCreated', handler)\n",[5228,11591,11592],{"class":5230,"line":5416},[5228,11593,11594],{},"note right: Підписка Inventory Service\n",[5228,11596,11597],{"class":5230,"line":5421},[5228,11598,11599],{},"Analytics -> Order : .on('orderCreated', handler)\n",[5228,11601,11602],{"class":5230,"line":5468},[5228,11603,11604],{},"note right: Підписка Analytics Service\n",[5228,11606,11607],{"class":5230,"line":5503},[5228,11608,5306],{"emptyLinePlaceholder":5305},[5228,11610,11611],{"class":5230,"line":5509},[5228,11612,11613],{},"note over Order, Analytics #DCFCE7\n",[5228,11615,11616],{"class":5230,"line":5515},[5228,11617,11618],{},"  OrderService НЕ ЗНАЄ про існування конкретних сервісів.\n",[5228,11620,11621],{"class":5230,"line":5543},[5228,11622,11623],{},"  Сервіси самостійно підписуються на події.\n",[5228,11625,11626],{"class":5230,"line":5565},[5228,11627,11628],{},"end note\n",[5228,11630,11631],{"class":5230,"line":5587},[5228,11632,5306],{"emptyLinePlaceholder":5305},[5228,11634,11635],{"class":5230,"line":5592},[5228,11636,11637],{},"== Виконання бізнес-логіки ==\n",[5228,11639,11640],{"class":5230,"line":5602},[5228,11641,5306],{"emptyLinePlaceholder":5305},[5228,11643,11644],{"class":5230,"line":5607},[5228,11645,11646],{},"Order -> Order : createOrder(userId, items)\n",[5228,11648,11649],{"class":5230,"line":5949},[5228,11650,11651],{},"activate Order\n",[5228,11653,11654],{"class":5230,"line":5968},[5228,11655,5306],{"emptyLinePlaceholder":5305},[5228,11657,11658],{"class":5230,"line":5973},[5228,11659,11660],{},"Order -> Order : saveToDatabase()\n",[5228,11662,11663],{"class":5230,"line":6011},[5228,11664,11665],{},"note right: Зберігаємо замовлення\n",[5228,11667,11668],{"class":5230,"line":6042},[5228,11669,5306],{"emptyLinePlaceholder":5305},[5228,11671,11672],{"class":5230,"line":6048},[5228,11673,11674],{},"Order -> Email : emit('orderCreated', event)\n",[5228,11676,11677],{"class":5230,"line":6053},[5228,11678,11679],{},"activate Email\n",[5228,11681,11682],{"class":5230,"line":6084},[5228,11683,11684],{},"Email -> Email : sendConfirmation(email)\n",[5228,11686,11687],{"class":5230,"line":6105},[5228,11688,11689],{},"Email --> Order : (асинхронна операція завершена)\n",[5228,11691,11692],{"class":5230,"line":6110},[5228,11693,11694],{},"deactivate Email\n",[5228,11696,11697],{"class":5230,"line":6115},[5228,11698,5306],{"emptyLinePlaceholder":5305},[5228,11700,11701],{"class":5230,"line":6146},[5228,11702,11703],{},"Order -> Inventory : emit('orderCreated', event)\n",[5228,11705,11706],{"class":5230,"line":6163},[5228,11707,11708],{},"activate Inventory\n",[5228,11710,11711],{"class":5230,"line":6168},[5228,11712,11713],{},"Inventory -> Inventory : decreaseStock(items)\n",[5228,11715,11716],{"class":5230,"line":6173},[5228,11717,11718],{},"Inventory --> Order : (асинхронна операція завершена)\n",[5228,11720,11721],{"class":5230,"line":6179},[5228,11722,11723],{},"deactivate Inventory\n",[5228,11725,11726],{"class":5230,"line":6210},[5228,11727,5306],{"emptyLinePlaceholder":5305},[5228,11729,11730],{"class":5230,"line":6242},[5228,11731,11732],{},"Order -> Analytics : emit('orderCreated', event)\n",[5228,11734,11735],{"class":5230,"line":8624},[5228,11736,11737],{},"activate Analytics\n",[5228,11739,11740],{"class":5230,"line":8629},[5228,11741,11742],{},"Analytics -> Analytics : trackPurchase(orderId)\n",[5228,11744,11745],{"class":5230,"line":8665},[5228,11746,11747],{},"Analytics --> Order : (асинхронна операція завершена)\n",[5228,11749,11750],{"class":5230,"line":8688},[5228,11751,11752],{},"deactivate Analytics\n",[5228,11754,11755],{"class":5230,"line":8693},[5228,11756,5306],{"emptyLinePlaceholder":5305},[5228,11758,11759],{"class":5230,"line":8698},[5228,11760,11761],{},"Order --> Order : return order\n",[5228,11763,11764],{"class":5230,"line":8717},[5228,11765,11766],{},"deactivate Order\n",[5228,11768,11769],{"class":5230,"line":8768},[5228,11770,5306],{"emptyLinePlaceholder":5305},[5228,11772,11773],{"class":5230,"line":8807},[5228,11774,11775],{},"note over Order, Analytics #FEF3C7\n",[5228,11777,11778],{"class":5230,"line":8812},[5228,11779,11780],{},"  Всі слухачі викликані послідовно.\n",[5228,11782,11783],{"class":5230,"line":8837},[5228,11784,11785],{},"  OrderService не чекає завершення асинхронних операцій.\n",[5228,11787,11788],{"class":5230,"line":8842},[5228,11789,11628],{},[5228,11791,11792],{"class":5230,"line":8880},[5228,11793,5306],{"emptyLinePlaceholder":5305},[5228,11795,11796],{"class":5230,"line":8892},[5228,11797,11798],{},"@enduml\n",[5190,11800,11801,11802,11804],{},"Як видно з діаграми, ",[5109,11803,5625],{}," не має прямих посилань на інші сервіси — він лише генерує подію. Сервіси самостійно підписуються на неї під час ініціалізації системи, що забезпечує слабке зв'язування та гнучкість архітектури.",[5185,11806,11808],{"id":11807},"eventemitter-у-nodejs-api-вбудовані-реалізації","EventEmitter у Node.js API: вбудовані реалізації",[5190,11810,11811,11812,11814],{},"Багато стандартних модулів Node.js успадковують від ",[5109,11813,5111],{}," та генерують події для різних стадій життєвого циклу:",[6442,11816,11818],{"id":11817},"http-server","HTTP Server",[5219,11820,11822],{"className":5221,"code":11821,"language":5223,"meta":5224,"style":5224},"import { createServer } from 'node:http';\n\nconst server = createServer((req, res) => {\n  res.end('OK');\n});\n\n\u002F\u002F HTTP Server є EventEmitter\nserver.on('request', (req, res) => {\n  console.log(`Запит: ${req.method} ${req.url}`);\n});\n\nserver.on('connection', (socket) => {\n  console.log('Нове TCP-з\\'єднання встановлено');\n});\n\nserver.on('close', () => {\n  console.log('Сервер зупинено');\n});\n\nserver.on('error', (error) => {\n  console.error('Помилка сервера:', error);\n});\n\nserver.listen(3000, () => {\n  console.log('Сервер слухає на порту 3000');\n});\n",[5109,11823,11824,11840,11844,11868,11882,11886,11890,11895,11921,11958,11962,11966,11989,12009,12013,12017,12036,12051,12055,12059,12081,12100,12104,12108,12126,12141],{"__ignoreMap":5224},[5228,11825,11826,11828,11830,11832,11834,11836,11838],{"class":5230,"line":5231},[5228,11827,5689],{"class":5480},[5228,11829,5692],{"class":5249},[5228,11831,6996],{"class":5259},[5228,11833,5697],{"class":5249},[5228,11835,5700],{"class":5480},[5228,11837,7003],{"class":5703},[5228,11839,5269],{"class":5249},[5228,11841,11842],{"class":5230,"line":5238},[5228,11843,5306],{"emptyLinePlaceholder":5305},[5228,11845,11846,11848,11850,11852,11854,11856,11858,11860,11862,11864,11866],{"class":5230,"line":5253},[5228,11847,5952],{"class":5241},[5228,11849,7078],{"class":5474},[5228,11851,5371],{"class":5249},[5228,11853,6996],{"class":5427},[5228,11855,7085],{"class":5249},[5228,11857,7088],{"class":5259},[5228,11859,5442],{"class":5249},[5228,11861,7093],{"class":5259},[5228,11863,6003],{"class":5249},[5228,11865,6006],{"class":5241},[5228,11867,5250],{"class":5249},[5228,11869,11870,11872,11874,11876,11878,11880],{"class":5230,"line":5272},[5228,11871,7119],{"class":5259},[5228,11873,5112],{"class":5249},[5228,11875,7124],{"class":5427},[5228,11877,5431],{"class":5249},[5228,11879,7129],{"class":5703},[5228,11881,5500],{"class":5249},[5228,11883,11884],{"class":5230,"line":5287},[5228,11885,6045],{"class":5249},[5228,11887,11888],{"class":5230,"line":5302},[5228,11889,5306],{"emptyLinePlaceholder":5305},[5228,11891,11892],{"class":5230,"line":5309},[5228,11893,11894],{"class":5234},"\u002F\u002F HTTP Server є EventEmitter\n",[5228,11896,11897,11899,11901,11903,11905,11907,11909,11911,11913,11915,11917,11919],{"class":5230,"line":5318},[5228,11898,7144],{"class":5259},[5228,11900,5112],{"class":5249},[5228,11902,5981],{"class":5427},[5228,11904,5431],{"class":5249},[5228,11906,11149],{"class":5703},[5228,11908,6338],{"class":5249},[5228,11910,7088],{"class":5259},[5228,11912,5442],{"class":5249},[5228,11914,7093],{"class":5259},[5228,11916,6003],{"class":5249},[5228,11918,6006],{"class":5241},[5228,11920,5250],{"class":5249},[5228,11922,11923,11925,11927,11929,11931,11934,11936,11938,11940,11942,11944,11946,11948,11950,11952,11954,11956],{"class":5230,"line":5331},[5228,11924,6356],{"class":5259},[5228,11926,5112],{"class":5249},[5228,11928,6361],{"class":5427},[5228,11930,5431],{"class":5249},[5228,11932,11933],{"class":5703},"`Запит: ",[5228,11935,6540],{"class":5241},[5228,11937,7088],{"class":5259},[5228,11939,5112],{"class":7320},[5228,11941,10517],{"class":5259},[5228,11943,6545],{"class":5241},[5228,11945,11193],{"class":5241},[5228,11947,7088],{"class":5259},[5228,11949,5112],{"class":7320},[5228,11951,10526],{"class":5259},[5228,11953,6545],{"class":5241},[5228,11955,6548],{"class":5703},[5228,11957,5500],{"class":5249},[5228,11959,11960],{"class":5230,"line":5343},[5228,11961,6045],{"class":5249},[5228,11963,11964],{"class":5230,"line":5354},[5228,11965,5306],{"emptyLinePlaceholder":5305},[5228,11967,11968,11970,11972,11974,11976,11978,11980,11983,11985,11987],{"class":5230,"line":5360},[5228,11969,7144],{"class":5259},[5228,11971,5112],{"class":5249},[5228,11973,5981],{"class":5427},[5228,11975,5431],{"class":5249},[5228,11977,6571],{"class":5703},[5228,11979,6338],{"class":5249},[5228,11981,11982],{"class":5259},"socket",[5228,11984,6003],{"class":5249},[5228,11986,6006],{"class":5241},[5228,11988,5250],{"class":5249},[5228,11990,11991,11993,11995,11997,11999,12002,12004,12007],{"class":5230,"line":5378},[5228,11992,6356],{"class":5259},[5228,11994,5112],{"class":5249},[5228,11996,6361],{"class":5427},[5228,11998,5431],{"class":5249},[5228,12000,12001],{"class":5703},"'Нове TCP-з",[5228,12003,9480],{"class":9479},[5228,12005,12006],{"class":5703},"єднання встановлено'",[5228,12008,5500],{"class":5249},[5228,12010,12011],{"class":5230,"line":5394},[5228,12012,6045],{"class":5249},[5228,12014,12015],{"class":5230,"line":5410},[5228,12016,5306],{"emptyLinePlaceholder":5305},[5228,12018,12019,12021,12023,12025,12027,12030,12032,12034],{"class":5230,"line":5416},[5228,12020,7144],{"class":5259},[5228,12022,5112],{"class":5249},[5228,12024,5981],{"class":5427},[5228,12026,5431],{"class":5249},[5228,12028,12029],{"class":5703},"'close'",[5228,12031,6885],{"class":5249},[5228,12033,6006],{"class":5241},[5228,12035,5250],{"class":5249},[5228,12037,12038,12040,12042,12044,12046,12049],{"class":5230,"line":5421},[5228,12039,6356],{"class":5259},[5228,12041,5112],{"class":5249},[5228,12043,6361],{"class":5427},[5228,12045,5431],{"class":5249},[5228,12047,12048],{"class":5703},"'Сервер зупинено'",[5228,12050,5500],{"class":5249},[5228,12052,12053],{"class":5230,"line":5468},[5228,12054,6045],{"class":5249},[5228,12056,12057],{"class":5230,"line":5503},[5228,12058,5306],{"emptyLinePlaceholder":5305},[5228,12060,12061,12063,12065,12067,12069,12071,12073,12075,12077,12079],{"class":5230,"line":5509},[5228,12062,7144],{"class":5259},[5228,12064,5112],{"class":5249},[5228,12066,5981],{"class":5427},[5228,12068,5431],{"class":5249},[5228,12070,7896],{"class":5703},[5228,12072,6338],{"class":5249},[5228,12074,7907],{"class":5259},[5228,12076,6003],{"class":5249},[5228,12078,6006],{"class":5241},[5228,12080,5250],{"class":5249},[5228,12082,12083,12085,12087,12089,12091,12094,12096,12098],{"class":5230,"line":5515},[5228,12084,6356],{"class":5259},[5228,12086,5112],{"class":5249},[5228,12088,7907],{"class":5427},[5228,12090,5431],{"class":5249},[5228,12092,12093],{"class":5703},"'Помилка сервера:'",[5228,12095,5442],{"class":5249},[5228,12097,7907],{"class":5259},[5228,12099,5500],{"class":5249},[5228,12101,12102],{"class":5230,"line":5543},[5228,12103,6045],{"class":5249},[5228,12105,12106],{"class":5230,"line":5565},[5228,12107,5306],{"emptyLinePlaceholder":5305},[5228,12109,12110,12112,12114,12116,12118,12120,12122,12124],{"class":5230,"line":5587},[5228,12111,7144],{"class":5259},[5228,12113,5112],{"class":5249},[5228,12115,7149],{"class":5427},[5228,12117,5431],{"class":5249},[5228,12119,7155],{"class":7154},[5228,12121,6885],{"class":5249},[5228,12123,6006],{"class":5241},[5228,12125,5250],{"class":5249},[5228,12127,12128,12130,12132,12134,12136,12139],{"class":5230,"line":5592},[5228,12129,6356],{"class":5259},[5228,12131,5112],{"class":5249},[5228,12133,6361],{"class":5427},[5228,12135,5431],{"class":5249},[5228,12137,12138],{"class":5703},"'Сервер слухає на порту 3000'",[5228,12140,5500],{"class":5249},[5228,12142,12143],{"class":5230,"line":5602},[5228,12144,6045],{"class":5249},[6442,12146,12148],{"id":12147},"readable-stream","Readable Stream",[5219,12150,12152],{"className":5221,"code":12151,"language":5223,"meta":5224,"style":5224},"import { createReadStream } from 'node:fs';\n\nconst stream = createReadStream('.\u002Flarge-file.txt');\n\n\u002F\u002F Readable Stream є EventEmitter\nstream.on('data', (chunk: Buffer) => {\n  console.log(`Отримано chunk розміром ${chunk.length} байт`);\n});\n\nstream.on('end', () => {\n  console.log('Читання завершено');\n});\n\nstream.on('error', (error) => {\n  console.error('Помилка читання:', error);\n});\n\nstream.on('close', () => {\n  console.log('Стрім закрито');\n});\n",[5109,12153,12154,12172,12176,12194,12198,12203,12232,12260,12264,12268,12287,12302,12306,12310,12332,12351,12355,12359,12377,12392],{"__ignoreMap":5224},[5228,12155,12156,12158,12160,12163,12165,12167,12170],{"class":5230,"line":5231},[5228,12157,5689],{"class":5480},[5228,12159,5692],{"class":5249},[5228,12161,12162],{"class":5259},"createReadStream",[5228,12164,5697],{"class":5249},[5228,12166,5700],{"class":5480},[5228,12168,12169],{"class":5703}," 'node:fs'",[5228,12171,5269],{"class":5249},[5228,12173,12174],{"class":5230,"line":5238},[5228,12175,5306],{"emptyLinePlaceholder":5305},[5228,12177,12178,12180,12183,12185,12187,12189,12192],{"class":5230,"line":5253},[5228,12179,5952],{"class":5241},[5228,12181,12182],{"class":5474}," stream",[5228,12184,5371],{"class":5249},[5228,12186,12162],{"class":5427},[5228,12188,5431],{"class":5249},[5228,12190,12191],{"class":5703},"'.\u002Flarge-file.txt'",[5228,12193,5500],{"class":5249},[5228,12195,12196],{"class":5230,"line":5272},[5228,12197,5306],{"emptyLinePlaceholder":5305},[5228,12199,12200],{"class":5230,"line":5287},[5228,12201,12202],{"class":5234},"\u002F\u002F Readable Stream є EventEmitter\n",[5228,12204,12205,12208,12210,12212,12214,12216,12218,12221,12223,12226,12228,12230],{"class":5230,"line":5302},[5228,12206,12207],{"class":5259},"stream",[5228,12209,5112],{"class":5249},[5228,12211,5981],{"class":5427},[5228,12213,5431],{"class":5249},[5228,12215,6335],{"class":5703},[5228,12217,6338],{"class":5249},[5228,12219,12220],{"class":5259},"chunk",[5228,12222,5263],{"class":5249},[5228,12224,12225],{"class":5245},"Buffer",[5228,12227,6003],{"class":5249},[5228,12229,6006],{"class":5241},[5228,12231,5250],{"class":5249},[5228,12233,12234,12236,12238,12240,12242,12245,12247,12249,12251,12253,12255,12258],{"class":5230,"line":5309},[5228,12235,6356],{"class":5259},[5228,12237,5112],{"class":5249},[5228,12239,6361],{"class":5427},[5228,12241,5431],{"class":5249},[5228,12243,12244],{"class":5703},"`Отримано chunk розміром ",[5228,12246,6540],{"class":5241},[5228,12248,12220],{"class":5259},[5228,12250,5112],{"class":7320},[5228,12252,8874],{"class":5259},[5228,12254,6545],{"class":5241},[5228,12256,12257],{"class":5703}," байт`",[5228,12259,5500],{"class":5249},[5228,12261,12262],{"class":5230,"line":5318},[5228,12263,6045],{"class":5249},[5228,12265,12266],{"class":5230,"line":5331},[5228,12267,5306],{"emptyLinePlaceholder":5305},[5228,12269,12270,12272,12274,12276,12278,12281,12283,12285],{"class":5230,"line":5343},[5228,12271,12207],{"class":5259},[5228,12273,5112],{"class":5249},[5228,12275,5981],{"class":5427},[5228,12277,5431],{"class":5249},[5228,12279,12280],{"class":5703},"'end'",[5228,12282,6885],{"class":5249},[5228,12284,6006],{"class":5241},[5228,12286,5250],{"class":5249},[5228,12288,12289,12291,12293,12295,12297,12300],{"class":5230,"line":5354},[5228,12290,6356],{"class":5259},[5228,12292,5112],{"class":5249},[5228,12294,6361],{"class":5427},[5228,12296,5431],{"class":5249},[5228,12298,12299],{"class":5703},"'Читання завершено'",[5228,12301,5500],{"class":5249},[5228,12303,12304],{"class":5230,"line":5360},[5228,12305,6045],{"class":5249},[5228,12307,12308],{"class":5230,"line":5378},[5228,12309,5306],{"emptyLinePlaceholder":5305},[5228,12311,12312,12314,12316,12318,12320,12322,12324,12326,12328,12330],{"class":5230,"line":5394},[5228,12313,12207],{"class":5259},[5228,12315,5112],{"class":5249},[5228,12317,5981],{"class":5427},[5228,12319,5431],{"class":5249},[5228,12321,7896],{"class":5703},[5228,12323,6338],{"class":5249},[5228,12325,7907],{"class":5259},[5228,12327,6003],{"class":5249},[5228,12329,6006],{"class":5241},[5228,12331,5250],{"class":5249},[5228,12333,12334,12336,12338,12340,12342,12345,12347,12349],{"class":5230,"line":5410},[5228,12335,6356],{"class":5259},[5228,12337,5112],{"class":5249},[5228,12339,7907],{"class":5427},[5228,12341,5431],{"class":5249},[5228,12343,12344],{"class":5703},"'Помилка читання:'",[5228,12346,5442],{"class":5249},[5228,12348,7907],{"class":5259},[5228,12350,5500],{"class":5249},[5228,12352,12353],{"class":5230,"line":5416},[5228,12354,6045],{"class":5249},[5228,12356,12357],{"class":5230,"line":5421},[5228,12358,5306],{"emptyLinePlaceholder":5305},[5228,12360,12361,12363,12365,12367,12369,12371,12373,12375],{"class":5230,"line":5468},[5228,12362,12207],{"class":5259},[5228,12364,5112],{"class":5249},[5228,12366,5981],{"class":5427},[5228,12368,5431],{"class":5249},[5228,12370,12029],{"class":5703},[5228,12372,6885],{"class":5249},[5228,12374,6006],{"class":5241},[5228,12376,5250],{"class":5249},[5228,12378,12379,12381,12383,12385,12387,12390],{"class":5230,"line":5503},[5228,12380,6356],{"class":5259},[5228,12382,5112],{"class":5249},[5228,12384,6361],{"class":5427},[5228,12386,5431],{"class":5249},[5228,12388,12389],{"class":5703},"'Стрім закрито'",[5228,12391,5500],{"class":5249},[5228,12393,12394],{"class":5230,"line":5509},[5228,12395,6045],{"class":5249},[6442,12397,12399],{"id":12398},"child-process","Child Process",[5219,12401,12403],{"className":5221,"code":12402,"language":5223,"meta":5224,"style":5224},"import { spawn } from 'node:child_process';\n\nconst child = spawn('ls', ['-lah', '\u002Fusr']);\n\n\u002F\u002F Child Process є EventEmitter\nchild.stdout.on('data', (data: Buffer) => {\n  console.log(`stdout: ${data}`);\n});\n\nchild.stderr.on('data', (data: Buffer) => {\n  console.error(`stderr: ${data}`);\n});\n\nchild.on('close', (code: number) => {\n  console.log(`Процес завершився з кодом ${code}`);\n});\n\nchild.on('error', (error: Error) => {\n  console.error('Помилка запуску процесу:', error);\n});\n",[5109,12404,12405,12423,12427,12457,12461,12466,12498,12521,12525,12529,12560,12583,12587,12591,12617,12640,12644,12648,12674,12693],{"__ignoreMap":5224},[5228,12406,12407,12409,12411,12414,12416,12418,12421],{"class":5230,"line":5231},[5228,12408,5689],{"class":5480},[5228,12410,5692],{"class":5249},[5228,12412,12413],{"class":5259},"spawn",[5228,12415,5697],{"class":5249},[5228,12417,5700],{"class":5480},[5228,12419,12420],{"class":5703}," 'node:child_process'",[5228,12422,5269],{"class":5249},[5228,12424,12425],{"class":5230,"line":5238},[5228,12426,5306],{"emptyLinePlaceholder":5305},[5228,12428,12429,12431,12434,12436,12438,12440,12443,12446,12449,12451,12454],{"class":5230,"line":5253},[5228,12430,5952],{"class":5241},[5228,12432,12433],{"class":5474}," child",[5228,12435,5371],{"class":5249},[5228,12437,12413],{"class":5427},[5228,12439,5431],{"class":5249},[5228,12441,12442],{"class":5703},"'ls'",[5228,12444,12445],{"class":5249},", [",[5228,12447,12448],{"class":5703},"'-lah'",[5228,12450,5442],{"class":5249},[5228,12452,12453],{"class":5703},"'\u002Fusr'",[5228,12455,12456],{"class":5249},"]);\n",[5228,12458,12459],{"class":5230,"line":5272},[5228,12460,5306],{"emptyLinePlaceholder":5305},[5228,12462,12463],{"class":5230,"line":5287},[5228,12464,12465],{"class":5234},"\u002F\u002F Child Process є EventEmitter\n",[5228,12467,12468,12471,12473,12476,12478,12480,12482,12484,12486,12488,12490,12492,12494,12496],{"class":5230,"line":5302},[5228,12469,12470],{"class":5259},"child",[5228,12472,5112],{"class":5249},[5228,12474,12475],{"class":5259},"stdout",[5228,12477,5112],{"class":5249},[5228,12479,5981],{"class":5427},[5228,12481,5431],{"class":5249},[5228,12483,6335],{"class":5703},[5228,12485,6338],{"class":5249},[5228,12487,7621],{"class":5259},[5228,12489,5263],{"class":5249},[5228,12491,12225],{"class":5245},[5228,12493,6003],{"class":5249},[5228,12495,6006],{"class":5241},[5228,12497,5250],{"class":5249},[5228,12499,12500,12502,12504,12506,12508,12511,12513,12515,12517,12519],{"class":5230,"line":5309},[5228,12501,6356],{"class":5259},[5228,12503,5112],{"class":5249},[5228,12505,6361],{"class":5427},[5228,12507,5431],{"class":5249},[5228,12509,12510],{"class":5703},"`stdout: ",[5228,12512,6540],{"class":5241},[5228,12514,7621],{"class":5259},[5228,12516,6545],{"class":5241},[5228,12518,6548],{"class":5703},[5228,12520,5500],{"class":5249},[5228,12522,12523],{"class":5230,"line":5318},[5228,12524,6045],{"class":5249},[5228,12526,12527],{"class":5230,"line":5331},[5228,12528,5306],{"emptyLinePlaceholder":5305},[5228,12530,12531,12533,12535,12538,12540,12542,12544,12546,12548,12550,12552,12554,12556,12558],{"class":5230,"line":5343},[5228,12532,12470],{"class":5259},[5228,12534,5112],{"class":5249},[5228,12536,12537],{"class":5259},"stderr",[5228,12539,5112],{"class":5249},[5228,12541,5981],{"class":5427},[5228,12543,5431],{"class":5249},[5228,12545,6335],{"class":5703},[5228,12547,6338],{"class":5249},[5228,12549,7621],{"class":5259},[5228,12551,5263],{"class":5249},[5228,12553,12225],{"class":5245},[5228,12555,6003],{"class":5249},[5228,12557,6006],{"class":5241},[5228,12559,5250],{"class":5249},[5228,12561,12562,12564,12566,12568,12570,12573,12575,12577,12579,12581],{"class":5230,"line":5354},[5228,12563,6356],{"class":5259},[5228,12565,5112],{"class":5249},[5228,12567,7907],{"class":5427},[5228,12569,5431],{"class":5249},[5228,12571,12572],{"class":5703},"`stderr: ",[5228,12574,6540],{"class":5241},[5228,12576,7621],{"class":5259},[5228,12578,6545],{"class":5241},[5228,12580,6548],{"class":5703},[5228,12582,5500],{"class":5249},[5228,12584,12585],{"class":5230,"line":5360},[5228,12586,6045],{"class":5249},[5228,12588,12589],{"class":5230,"line":5378},[5228,12590,5306],{"emptyLinePlaceholder":5305},[5228,12592,12593,12595,12597,12599,12601,12603,12605,12607,12609,12611,12613,12615],{"class":5230,"line":5394},[5228,12594,12470],{"class":5259},[5228,12596,5112],{"class":5249},[5228,12598,5981],{"class":5427},[5228,12600,5431],{"class":5249},[5228,12602,12029],{"class":5703},[5228,12604,6338],{"class":5249},[5228,12606,5109],{"class":5259},[5228,12608,5263],{"class":5249},[5228,12610,5764],{"class":5245},[5228,12612,6003],{"class":5249},[5228,12614,6006],{"class":5241},[5228,12616,5250],{"class":5249},[5228,12618,12619,12621,12623,12625,12627,12630,12632,12634,12636,12638],{"class":5230,"line":5410},[5228,12620,6356],{"class":5259},[5228,12622,5112],{"class":5249},[5228,12624,6361],{"class":5427},[5228,12626,5431],{"class":5249},[5228,12628,12629],{"class":5703},"`Процес завершився з кодом ",[5228,12631,6540],{"class":5241},[5228,12633,5109],{"class":5259},[5228,12635,6545],{"class":5241},[5228,12637,6548],{"class":5703},[5228,12639,5500],{"class":5249},[5228,12641,12642],{"class":5230,"line":5416},[5228,12643,6045],{"class":5249},[5228,12645,12646],{"class":5230,"line":5421},[5228,12647,5306],{"emptyLinePlaceholder":5305},[5228,12649,12650,12652,12654,12656,12658,12660,12662,12664,12666,12668,12670,12672],{"class":5230,"line":5468},[5228,12651,12470],{"class":5259},[5228,12653,5112],{"class":5249},[5228,12655,5981],{"class":5427},[5228,12657,5431],{"class":5249},[5228,12659,7896],{"class":5703},[5228,12661,6338],{"class":5249},[5228,12663,7907],{"class":5259},[5228,12665,5263],{"class":5249},[5228,12667,9758],{"class":5245},[5228,12669,6003],{"class":5249},[5228,12671,6006],{"class":5241},[5228,12673,5250],{"class":5249},[5228,12675,12676,12678,12680,12682,12684,12687,12689,12691],{"class":5230,"line":5503},[5228,12677,6356],{"class":5259},[5228,12679,5112],{"class":5249},[5228,12681,7907],{"class":5427},[5228,12683,5431],{"class":5249},[5228,12685,12686],{"class":5703},"'Помилка запуску процесу:'",[5228,12688,5442],{"class":5249},[5228,12690,7907],{"class":5259},[5228,12692,5500],{"class":5249},[5228,12694,12695],{"class":5230,"line":5509},[5228,12696,6045],{"class":5249},[6801,12698,12699],{},"Коли ви працюєте з Node.js API, завжди перевіряйте документацію на предмет подій, що генеруються. Більшість модулів для введення\u002Fвиведення, мережевих з'єднань та процесів є екземплярами EventEmitter.",[5185,12701,12703],{"id":12702},"порівняння-eventemitter-та-promise-коли-що-використовувати","Порівняння EventEmitter та Promise: коли що використовувати",[5190,12705,12706],{},"EventEmitter та Promise є двома фундаментальними механізмами асинхронності у Node.js, але вони призначені для різних сценаріїв:",[12708,12709,12710,13003],"code-group",{},[5219,12711,12714],{"className":5221,"code":12712,"filename":12713,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nclass FileWatcher extends EventEmitter {\n  watch(filepath: string): void {\n    \u002F\u002F Симуляція моніторингу файлу\n    setInterval(() => {\n      const hasChanged = Math.random() > 0.7;\n      \n      if (hasChanged) {\n        \u002F\u002F Подія може генеруватися 0, 1 або N разів\n        this.emit('change', { filepath, timestamp: new Date() });\n      }\n    }, 1000);\n  }\n}\n\nconst watcher = new FileWatcher();\n\n\u002F\u002F Підписуємось на всі зміни файлу\nwatcher.on('change', ({ filepath, timestamp }) => {\n  console.log(`Файл ${filepath} змінено о ${timestamp.toISOString()}`);\n});\n\nwatcher.watch('.\u002Fconfig.json');\n\n\u002F\u002F Подія 'change' може відбутися багато разів\n","EventEmitter: багаторазові події",[5109,12715,12716,12732,12736,12749,12768,12773,12784,12807,12811,12822,12827,12856,12860,12869,12873,12877,12881,12896,12900,12905,12932,12970,12974,12978,12994,12998],{"__ignoreMap":5224},[5228,12717,12718,12720,12722,12724,12726,12728,12730],{"class":5230,"line":5231},[5228,12719,5689],{"class":5480},[5228,12721,5692],{"class":5249},[5228,12723,5111],{"class":5259},[5228,12725,5697],{"class":5249},[5228,12727,5700],{"class":5480},[5228,12729,5704],{"class":5703},[5228,12731,5269],{"class":5249},[5228,12733,12734],{"class":5230,"line":5238},[5228,12735,5306],{"emptyLinePlaceholder":5305},[5228,12737,12738,12740,12743,12745,12747],{"class":5230,"line":5253},[5228,12739,5242],{"class":5241},[5228,12741,12742],{"class":5245}," FileWatcher",[5228,12744,5783],{"class":5241},[5228,12746,5786],{"class":5245},[5228,12748,5250],{"class":5249},[5228,12750,12751,12754,12756,12758,12760,12762,12764,12766],{"class":5230,"line":5272},[5228,12752,12753],{"class":5427},"  watch",[5228,12755,5431],{"class":5249},[5228,12757,8822],{"class":5259},[5228,12759,5263],{"class":5249},[5228,12761,5439],{"class":5245},[5228,12763,6519],{"class":5249},[5228,12765,6522],{"class":5245},[5228,12767,5250],{"class":5249},[5228,12769,12770],{"class":5230,"line":5287},[5228,12771,12772],{"class":5234},"    \u002F\u002F Симуляція моніторингу файлу\n",[5228,12774,12775,12778,12780,12782],{"class":5230,"line":5302},[5228,12776,12777],{"class":5427},"    setInterval",[5228,12779,10143],{"class":5249},[5228,12781,6006],{"class":5241},[5228,12783,5250],{"class":5249},[5228,12785,12786,12789,12792,12794,12796,12798,12800,12803,12805],{"class":5230,"line":5309},[5228,12787,12788],{"class":5241},"      const",[5228,12790,12791],{"class":5474}," hasChanged",[5228,12793,5371],{"class":5249},[5228,12795,10268],{"class":5259},[5228,12797,5112],{"class":5249},[5228,12799,10273],{"class":5427},[5228,12801,12802],{"class":5249},"() > ",[5228,12804,10279],{"class":7154},[5228,12806,5269],{"class":5249},[5228,12808,12809],{"class":5230,"line":5318},[5228,12810,9979],{"class":5249},[5228,12812,12813,12815,12817,12820],{"class":5230,"line":5331},[5228,12814,10069],{"class":5480},[5228,12816,5102],{"class":5249},[5228,12818,12819],{"class":5259},"hasChanged",[5228,12821,8462],{"class":5249},[5228,12823,12824],{"class":5230,"line":5343},[5228,12825,12826],{"class":5234},"        \u002F\u002F Подія може генеруватися 0, 1 або N разів\n",[5228,12828,12829,12831,12833,12835,12837,12840,12842,12844,12846,12849,12851,12853],{"class":5230,"line":5354},[5228,12830,10196],{"class":5241},[5228,12832,5112],{"class":5249},[5228,12834,5864],{"class":5427},[5228,12836,5431],{"class":5249},[5228,12838,12839],{"class":5703},"'change'",[5228,12841,8856],{"class":5249},[5228,12843,8822],{"class":5259},[5228,12845,5442],{"class":5249},[5228,12847,12848],{"class":5259},"timestamp:",[5228,12850,8342],{"class":5241},[5228,12852,7369],{"class":5427},[5228,12854,12855],{"class":5249},"() });\n",[5228,12857,12858],{"class":5230,"line":5360},[5228,12859,10222],{"class":5249},[5228,12861,12862,12865,12867],{"class":5230,"line":5378},[5228,12863,12864],{"class":5249},"    }, ",[5228,12866,10167],{"class":7154},[5228,12868,5500],{"class":5249},[5228,12870,12871],{"class":5230,"line":5394},[5228,12872,5413],{"class":5249},[5228,12874,12875],{"class":5230,"line":5410},[5228,12876,5610],{"class":5249},[5228,12878,12879],{"class":5230,"line":5416},[5228,12880,5306],{"emptyLinePlaceholder":5305},[5228,12882,12883,12885,12888,12890,12892,12894],{"class":5230,"line":5421},[5228,12884,5952],{"class":5241},[5228,12886,12887],{"class":5474}," watcher",[5228,12889,5371],{"class":5249},[5228,12891,5960],{"class":5241},[5228,12893,12742],{"class":5427},[5228,12895,5965],{"class":5249},[5228,12897,12898],{"class":5230,"line":5468},[5228,12899,5306],{"emptyLinePlaceholder":5305},[5228,12901,12902],{"class":5230,"line":5503},[5228,12903,12904],{"class":5234},"\u002F\u002F Підписуємось на всі зміни файлу\n",[5228,12906,12907,12910,12912,12914,12916,12918,12920,12922,12924,12926,12928,12930],{"class":5230,"line":5509},[5228,12908,12909],{"class":5259},"watcher",[5228,12911,5112],{"class":5249},[5228,12913,5981],{"class":5427},[5228,12915,5431],{"class":5249},[5228,12917,12839],{"class":5703},[5228,12919,9349],{"class":5249},[5228,12921,8822],{"class":5259},[5228,12923,5442],{"class":5249},[5228,12925,7242],{"class":5259},[5228,12927,9359],{"class":5249},[5228,12929,6006],{"class":5241},[5228,12931,5250],{"class":5249},[5228,12933,12934,12936,12938,12940,12942,12945,12947,12949,12951,12954,12956,12958,12960,12962,12964,12966,12968],{"class":5230,"line":5515},[5228,12935,6356],{"class":5259},[5228,12937,5112],{"class":5249},[5228,12939,6361],{"class":5427},[5228,12941,5431],{"class":5249},[5228,12943,12944],{"class":5703},"`Файл ",[5228,12946,6540],{"class":5241},[5228,12948,8822],{"class":5259},[5228,12950,6545],{"class":5241},[5228,12952,12953],{"class":5703}," змінено о ",[5228,12955,6540],{"class":5241},[5228,12957,7242],{"class":5259},[5228,12959,5112],{"class":7320},[5228,12961,7323],{"class":5427},[5228,12963,7326],{"class":7320},[5228,12965,6545],{"class":5241},[5228,12967,6548],{"class":5703},[5228,12969,5500],{"class":5249},[5228,12971,12972],{"class":5230,"line":5543},[5228,12973,6045],{"class":5249},[5228,12975,12976],{"class":5230,"line":5565},[5228,12977,5306],{"emptyLinePlaceholder":5305},[5228,12979,12980,12982,12984,12987,12989,12992],{"class":5230,"line":5587},[5228,12981,12909],{"class":5259},[5228,12983,5112],{"class":5249},[5228,12985,12986],{"class":5427},"watch",[5228,12988,5431],{"class":5249},[5228,12990,12991],{"class":5703},"'.\u002Fconfig.json'",[5228,12993,5500],{"class":5249},[5228,12995,12996],{"class":5230,"line":5592},[5228,12997,5306],{"emptyLinePlaceholder":5305},[5228,12999,13000],{"class":5230,"line":5602},[5228,13001,13002],{"class":5234},"\u002F\u002F Подія 'change' може відбутися багато разів\n",[5219,13004,13007],{"className":5221,"code":13005,"filename":13006,"language":5223,"meta":5224,"style":5224},"import { readFile } from 'node:fs\u002Fpromises';\n\nasync function loadConfig(filepath: string): Promise\u003CConfig> {\n  \u002F\u002F Promise вирішується ОДИН РАЗ: успіхом або помилкою\n  try {\n    const content = await readFile(filepath, 'utf-8');\n    return JSON.parse(content) as Config;\n  } catch (error) {\n    throw new Error(`Не вдалося завантажити конфігурацію: ${error}`);\n  }\n}\n\n\u002F\u002F Отримуємо результат один раз\nloadConfig('.\u002Fconfig.json')\n  .then((config) => {\n    console.log('Конфігурація завантажена:', config);\n  })\n  .catch((error) => {\n    console.error('Помилка:', error);\n  });\n\n\u002F\u002F Promise не можна \"перевикористати\" — він вирішується один раз\n","Promise: одноразовий результат",[5109,13008,13009,13026,13030,13059,13064,13071,13094,13120,13133,13157,13161,13165,13169,13174,13186,13205,13225,13230,13246,13265,13270,13274],{"__ignoreMap":5224},[5228,13010,13011,13013,13015,13018,13020,13022,13024],{"class":5230,"line":5231},[5228,13012,5689],{"class":5480},[5228,13014,5692],{"class":5249},[5228,13016,13017],{"class":5259},"readFile",[5228,13019,5697],{"class":5249},[5228,13021,5700],{"class":5480},[5228,13023,8101],{"class":5703},[5228,13025,5269],{"class":5249},[5228,13027,13028],{"class":5230,"line":5238},[5228,13029,5306],{"emptyLinePlaceholder":5305},[5228,13031,13032,13034,13037,13040,13042,13044,13046,13048,13050,13052,13054,13057],{"class":5230,"line":5253},[5228,13033,5990],{"class":5241},[5228,13035,13036],{"class":5241}," function",[5228,13038,13039],{"class":5427}," loadConfig",[5228,13041,5431],{"class":5249},[5228,13043,8822],{"class":5259},[5228,13045,5263],{"class":5249},[5228,13047,5439],{"class":5245},[5228,13049,6519],{"class":5249},[5228,13051,5456],{"class":5245},[5228,13053,5459],{"class":5249},[5228,13055,13056],{"class":5245},"Config",[5228,13058,5465],{"class":5249},[5228,13060,13061],{"class":5230,"line":5272},[5228,13062,13063],{"class":5234},"  \u002F\u002F Promise вирішується ОДИН РАЗ: успіхом або помилкою\n",[5228,13065,13066,13069],{"class":5230,"line":5287},[5228,13067,13068],{"class":5480},"  try",[5228,13070,5250],{"class":5249},[5228,13072,13073,13075,13077,13079,13081,13084,13086,13088,13090,13092],{"class":5230,"line":5302},[5228,13074,5471],{"class":5241},[5228,13076,8773],{"class":5474},[5228,13078,5371],{"class":5249},[5228,13080,5481],{"class":5480},[5228,13082,13083],{"class":5427}," readFile",[5228,13085,5431],{"class":5249},[5228,13087,8822],{"class":5259},[5228,13089,5442],{"class":5249},[5228,13091,8832],{"class":5703},[5228,13093,5500],{"class":5249},[5228,13095,13096,13098,13101,13103,13106,13108,13110,13112,13115,13118],{"class":5230,"line":5309},[5228,13097,5595],{"class":5480},[5228,13099,13100],{"class":5474}," JSON",[5228,13102,5112],{"class":5249},[5228,13104,13105],{"class":5427},"parse",[5228,13107,5431],{"class":5249},[5228,13109,8827],{"class":5259},[5228,13111,6003],{"class":5249},[5228,13113,13114],{"class":5480},"as",[5228,13116,13117],{"class":5245}," Config",[5228,13119,5269],{"class":5249},[5228,13121,13122,13125,13127,13129,13131],{"class":5230,"line":5318},[5228,13123,13124],{"class":5249},"  } ",[5228,13126,9520],{"class":5480},[5228,13128,5102],{"class":5249},[5228,13130,7907],{"class":5259},[5228,13132,8462],{"class":5249},[5228,13134,13135,13138,13140,13142,13144,13147,13149,13151,13153,13155],{"class":5230,"line":5331},[5228,13136,13137],{"class":5480},"    throw",[5228,13139,8342],{"class":5241},[5228,13141,9651],{"class":5427},[5228,13143,5431],{"class":5249},[5228,13145,13146],{"class":5703},"`Не вдалося завантажити конфігурацію: ",[5228,13148,6540],{"class":5241},[5228,13150,7907],{"class":5259},[5228,13152,6545],{"class":5241},[5228,13154,6548],{"class":5703},[5228,13156,5500],{"class":5249},[5228,13158,13159],{"class":5230,"line":5343},[5228,13160,5413],{"class":5249},[5228,13162,13163],{"class":5230,"line":5354},[5228,13164,5610],{"class":5249},[5228,13166,13167],{"class":5230,"line":5360},[5228,13168,5306],{"emptyLinePlaceholder":5305},[5228,13170,13171],{"class":5230,"line":5378},[5228,13172,13173],{"class":5234},"\u002F\u002F Отримуємо результат один раз\n",[5228,13175,13176,13179,13181,13183],{"class":5230,"line":5394},[5228,13177,13178],{"class":5427},"loadConfig",[5228,13180,5431],{"class":5249},[5228,13182,12991],{"class":5703},[5228,13184,13185],{"class":5249},")\n",[5228,13187,13188,13191,13194,13196,13199,13201,13203],{"class":5230,"line":5410},[5228,13189,13190],{"class":5249},"  .",[5228,13192,13193],{"class":5427},"then",[5228,13195,7085],{"class":5249},[5228,13197,13198],{"class":5259},"config",[5228,13200,6003],{"class":5249},[5228,13202,6006],{"class":5241},[5228,13204,5250],{"class":5249},[5228,13206,13207,13210,13212,13214,13216,13219,13221,13223],{"class":5230,"line":5416},[5228,13208,13209],{"class":5259},"    console",[5228,13211,5112],{"class":5249},[5228,13213,6361],{"class":5427},[5228,13215,5431],{"class":5249},[5228,13217,13218],{"class":5703},"'Конфігурація завантажена:'",[5228,13220,5442],{"class":5249},[5228,13222,13198],{"class":5259},[5228,13224,5500],{"class":5249},[5228,13226,13227],{"class":5230,"line":5421},[5228,13228,13229],{"class":5249},"  })\n",[5228,13231,13232,13234,13236,13238,13240,13242,13244],{"class":5230,"line":5468},[5228,13233,13190],{"class":5249},[5228,13235,9520],{"class":5427},[5228,13237,7085],{"class":5249},[5228,13239,7907],{"class":5259},[5228,13241,6003],{"class":5249},[5228,13243,6006],{"class":5241},[5228,13245,5250],{"class":5249},[5228,13247,13248,13250,13252,13254,13256,13259,13261,13263],{"class":5230,"line":5503},[5228,13249,13209],{"class":5259},[5228,13251,5112],{"class":5249},[5228,13253,7907],{"class":5427},[5228,13255,5431],{"class":5249},[5228,13257,13258],{"class":5703},"'Помилка:'",[5228,13260,5442],{"class":5249},[5228,13262,7907],{"class":5259},[5228,13264,5500],{"class":5249},[5228,13266,13267],{"class":5230,"line":5509},[5228,13268,13269],{"class":5249},"  });\n",[5228,13271,13272],{"class":5230,"line":5515},[5228,13273,5306],{"emptyLinePlaceholder":5305},[5228,13275,13276],{"class":5230,"line":5543},[5228,13277,13278],{"class":5234},"\u002F\u002F Promise не можна \"перевикористати\" — він вирішується один раз\n",[5190,13280,13281],{},"Ключові відмінності:",[5084,13283,13284,13345],{},[5087,13285,13288,13293,13307,13312],{"icon":13286,"title":13287},"i-lucide-repeat","🔄 EventEmitter",[5190,13289,13290],{},[5099,13291,13292],{},"Характеристики:",[5092,13294,13295,13298,13301,13304],{},[5095,13296,13297],{},"Багаторазові події протягом життєвого циклу об'єкта.",[5095,13299,13300],{},"Один емітер може мати кілька слухачів для однієї події.",[5095,13302,13303],{},"Слухачі викликаються синхронно у порядку реєстрації.",[5095,13305,13306],{},"Підходить для потоків подій (клацання кнопок, нові з'єднання, зміни файлів).",[5190,13308,13309],{},[5099,13310,13311],{},"Коли використовувати:",[5092,13313,13314,13321,13333,13342],{},[5095,13315,13316,13317,13320],{},"Моніторинг файлової системи (",[5109,13318,13319],{},"fs.watch",").",[5095,13322,13323,13324,5442,13327,5442,13330,13320],{},"HTTP-сервери (події ",[5109,13325,13326],{},"request",[5109,13328,13329],{},"connection",[5109,13331,13332],{},"close",[5095,13334,13335,13336,5442,13338,5442,13340,13320],{},"Stream обробка даних (",[5109,13337,7621],{},[5109,13339,7124],{},[5109,13341,7907],{},[5095,13343,13344],{},"Реалізація патернів Pub\u002FSub та Observer.",[5087,13346,13349,13353,13374,13378],{"icon":13347,"title":13348},"i-lucide-check-circle","✅ Promise \u002F async-await",[5190,13350,13351],{},[5099,13352,13292],{},[5092,13354,13355,13358,13361,13371],{},[5095,13356,13357],{},"Одноразовий результат: fulfilled (успіх) або rejected (помилка).",[5095,13359,13360],{},"Проміс не можна \"перезапустити\" — він існує в одному з трьох станів: pending, fulfilled, rejected.",[5095,13362,13363,13364,13367,13368,5112],{},"Підтримує ланцюжки через ",[5109,13365,13366],{},".then()"," та композицію через ",[5109,13369,13370],{},"async\u002Fawait",[5095,13372,13373],{},"Підходить для операцій з чітко визначеним завершенням.",[5190,13375,13376],{},[5099,13377,13311],{},[5092,13379,13380,13389,13392,13401],{},[5095,13381,13382,13383,5442,13386,13320],{},"HTTP-запити до зовнішніх API (",[5109,13384,13385],{},"fetch",[5109,13387,13388],{},"axios",[5095,13390,13391],{},"Операції з базою даних (один запит — один результат).",[5095,13393,13394,13395,5442,13398,13320],{},"Читання\u002Fзапис файлів (",[5109,13396,13397],{},"fs.readFile",[5109,13399,13400],{},"fs.writeFile",[5095,13402,13403],{},"Будь-які асинхронні операції, що мають одне завершення.",[5190,13405,13406],{},"Гібридний підхід: перетворення EventEmitter у Promise:",[5219,13408,13410],{"className":5221,"code":13409,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\nimport { once } from 'node:events';\n\nclass DatabaseConnection extends EventEmitter {\n  connect(): void {\n    setTimeout(() => {\n      const success = Math.random() > 0.3;\n      \n      if (success) {\n        this.emit('connected');\n      } else {\n        this.emit('error', new Error('Connection failed'));\n      }\n    }, 1000);\n  }\n}\n\n\u002F\u002F Утилітна функція: перетворення події у Promise\nasync function waitForConnection(db: DatabaseConnection): Promise\u003Cvoid> {\n  \u002F\u002F Використовуємо вбудовану функцію `once` для очікування події\n  await once(db, 'connected');\n  console.log('З\\'єднання встановлено');\n}\n\nconst db = new DatabaseConnection();\n\ndb.on('error', (error) => {\n  console.error('Помилка підключення:', error);\n});\n\ndb.connect();\n\n\u002F\u002F Очікуємо події як Promise\nwaitForConnection(db)\n  .then(() => {\n    console.log('Можна працювати з базою даних');\n  })\n  .catch((error) => {\n    console.error('Не вдалося підключитися:', error);\n  });\n",[5109,13411,13412,13428,13444,13448,13460,13471,13482,13504,13508,13519,13533,13541,13566,13570,13578,13582,13586,13590,13595,13623,13628,13645,13664,13668,13672,13686,13690,13712,13731,13735,13739,13749,13753,13758,13769,13781,13796,13800,13816,13835],{"__ignoreMap":5224},[5228,13413,13414,13416,13418,13420,13422,13424,13426],{"class":5230,"line":5231},[5228,13415,5689],{"class":5480},[5228,13417,5692],{"class":5249},[5228,13419,5111],{"class":5259},[5228,13421,5697],{"class":5249},[5228,13423,5700],{"class":5480},[5228,13425,5704],{"class":5703},[5228,13427,5269],{"class":5249},[5228,13429,13430,13432,13434,13436,13438,13440,13442],{"class":5230,"line":5238},[5228,13431,5689],{"class":5480},[5228,13433,5692],{"class":5249},[5228,13435,6877],{"class":5259},[5228,13437,5697],{"class":5249},[5228,13439,5700],{"class":5480},[5228,13441,5704],{"class":5703},[5228,13443,5269],{"class":5249},[5228,13445,13446],{"class":5230,"line":5253},[5228,13447,5306],{"emptyLinePlaceholder":5305},[5228,13449,13450,13452,13454,13456,13458],{"class":5230,"line":5272},[5228,13451,5242],{"class":5241},[5228,13453,9893],{"class":5245},[5228,13455,5783],{"class":5241},[5228,13457,5786],{"class":5245},[5228,13459,5250],{"class":5249},[5228,13461,13462,13465,13467,13469],{"class":5230,"line":5287},[5228,13463,13464],{"class":5427},"  connect",[5228,13466,8706],{"class":5249},[5228,13468,6522],{"class":5245},[5228,13470,5250],{"class":5249},[5228,13472,13473,13476,13478,13480],{"class":5230,"line":5302},[5228,13474,13475],{"class":5427},"    setTimeout",[5228,13477,10143],{"class":5249},[5228,13479,6006],{"class":5241},[5228,13481,5250],{"class":5249},[5228,13483,13484,13486,13489,13491,13493,13495,13497,13499,13502],{"class":5230,"line":5309},[5228,13485,12788],{"class":5241},[5228,13487,13488],{"class":5474}," success",[5228,13490,5371],{"class":5249},[5228,13492,10268],{"class":5259},[5228,13494,5112],{"class":5249},[5228,13496,10273],{"class":5427},[5228,13498,12802],{"class":5249},[5228,13500,13501],{"class":7154},"0.3",[5228,13503,5269],{"class":5249},[5228,13505,13506],{"class":5230,"line":5318},[5228,13507,9979],{"class":5249},[5228,13509,13510,13512,13514,13517],{"class":5230,"line":5331},[5228,13511,10069],{"class":5480},[5228,13513,5102],{"class":5249},[5228,13515,13516],{"class":5259},"success",[5228,13518,8462],{"class":5249},[5228,13520,13521,13523,13525,13527,13529,13531],{"class":5230,"line":5343},[5228,13522,10196],{"class":5241},[5228,13524,5112],{"class":5249},[5228,13526,5864],{"class":5427},[5228,13528,5431],{"class":5249},[5228,13530,9992],{"class":5703},[5228,13532,5500],{"class":5249},[5228,13534,13535,13537,13539],{"class":5230,"line":5354},[5228,13536,10186],{"class":5249},[5228,13538,10189],{"class":5480},[5228,13540,5250],{"class":5249},[5228,13542,13543,13545,13547,13549,13551,13553,13555,13557,13559,13561,13564],{"class":5230,"line":5360},[5228,13544,10196],{"class":5241},[5228,13546,5112],{"class":5249},[5228,13548,5864],{"class":5427},[5228,13550,5431],{"class":5249},[5228,13552,7896],{"class":5703},[5228,13554,5442],{"class":5249},[5228,13556,5960],{"class":5241},[5228,13558,9651],{"class":5427},[5228,13560,5431],{"class":5249},[5228,13562,13563],{"class":5703},"'Connection failed'",[5228,13565,7854],{"class":5249},[5228,13567,13568],{"class":5230,"line":5378},[5228,13569,10222],{"class":5249},[5228,13571,13572,13574,13576],{"class":5230,"line":5394},[5228,13573,12864],{"class":5249},[5228,13575,10167],{"class":7154},[5228,13577,5500],{"class":5249},[5228,13579,13580],{"class":5230,"line":5410},[5228,13581,5413],{"class":5249},[5228,13583,13584],{"class":5230,"line":5416},[5228,13585,5610],{"class":5249},[5228,13587,13588],{"class":5230,"line":5421},[5228,13589,5306],{"emptyLinePlaceholder":5305},[5228,13591,13592],{"class":5230,"line":5468},[5228,13593,13594],{"class":5234},"\u002F\u002F Утилітна функція: перетворення події у Promise\n",[5228,13596,13597,13599,13601,13604,13606,13608,13610,13613,13615,13617,13619,13621],{"class":5230,"line":5503},[5228,13598,5990],{"class":5241},[5228,13600,13036],{"class":5241},[5228,13602,13603],{"class":5427}," waitForConnection",[5228,13605,5431],{"class":5249},[5228,13607,10342],{"class":5259},[5228,13609,5263],{"class":5249},[5228,13611,13612],{"class":5245},"DatabaseConnection",[5228,13614,6519],{"class":5249},[5228,13616,5456],{"class":5245},[5228,13618,5459],{"class":5249},[5228,13620,6522],{"class":5245},[5228,13622,5465],{"class":5249},[5228,13624,13625],{"class":5230,"line":5509},[5228,13626,13627],{"class":5234},"  \u002F\u002F Використовуємо вбудовану функцію `once` для очікування події\n",[5228,13629,13630,13632,13635,13637,13639,13641,13643],{"class":5230,"line":5515},[5228,13631,6014],{"class":5480},[5228,13633,13634],{"class":5427}," once",[5228,13636,5431],{"class":5249},[5228,13638,10342],{"class":5259},[5228,13640,5442],{"class":5249},[5228,13642,9992],{"class":5703},[5228,13644,5500],{"class":5249},[5228,13646,13647,13649,13651,13653,13655,13658,13660,13662],{"class":5230,"line":5543},[5228,13648,6356],{"class":5259},[5228,13650,5112],{"class":5249},[5228,13652,6361],{"class":5427},[5228,13654,5431],{"class":5249},[5228,13656,13657],{"class":5703},"'З",[5228,13659,9480],{"class":9479},[5228,13661,12006],{"class":5703},[5228,13663,5500],{"class":5249},[5228,13665,13666],{"class":5230,"line":5565},[5228,13667,5610],{"class":5249},[5228,13669,13670],{"class":5230,"line":5587},[5228,13671,5306],{"emptyLinePlaceholder":5305},[5228,13673,13674,13676,13678,13680,13682,13684],{"class":5230,"line":5592},[5228,13675,5952],{"class":5241},[5228,13677,10320],{"class":5474},[5228,13679,5371],{"class":5249},[5228,13681,5960],{"class":5241},[5228,13683,9893],{"class":5427},[5228,13685,5965],{"class":5249},[5228,13687,13688],{"class":5230,"line":5602},[5228,13689,5306],{"emptyLinePlaceholder":5305},[5228,13691,13692,13694,13696,13698,13700,13702,13704,13706,13708,13710],{"class":5230,"line":5607},[5228,13693,10342],{"class":5259},[5228,13695,5112],{"class":5249},[5228,13697,5981],{"class":5427},[5228,13699,5431],{"class":5249},[5228,13701,7896],{"class":5703},[5228,13703,6338],{"class":5249},[5228,13705,7907],{"class":5259},[5228,13707,6003],{"class":5249},[5228,13709,6006],{"class":5241},[5228,13711,5250],{"class":5249},[5228,13713,13714,13716,13718,13720,13722,13725,13727,13729],{"class":5230,"line":5949},[5228,13715,6356],{"class":5259},[5228,13717,5112],{"class":5249},[5228,13719,7907],{"class":5427},[5228,13721,5431],{"class":5249},[5228,13723,13724],{"class":5703},"'Помилка підключення:'",[5228,13726,5442],{"class":5249},[5228,13728,7907],{"class":5259},[5228,13730,5500],{"class":5249},[5228,13732,13733],{"class":5230,"line":5968},[5228,13734,6045],{"class":5249},[5228,13736,13737],{"class":5230,"line":5973},[5228,13738,5306],{"emptyLinePlaceholder":5305},[5228,13740,13741,13743,13745,13747],{"class":5230,"line":6011},[5228,13742,10342],{"class":5259},[5228,13744,5112],{"class":5249},[5228,13746,10157],{"class":5427},[5228,13748,5965],{"class":5249},[5228,13750,13751],{"class":5230,"line":6042},[5228,13752,5306],{"emptyLinePlaceholder":5305},[5228,13754,13755],{"class":5230,"line":6048},[5228,13756,13757],{"class":5234},"\u002F\u002F Очікуємо події як Promise\n",[5228,13759,13760,13763,13765,13767],{"class":5230,"line":6053},[5228,13761,13762],{"class":5427},"waitForConnection",[5228,13764,5431],{"class":5249},[5228,13766,10342],{"class":5259},[5228,13768,13185],{"class":5249},[5228,13770,13771,13773,13775,13777,13779],{"class":5230,"line":6084},[5228,13772,13190],{"class":5249},[5228,13774,13193],{"class":5427},[5228,13776,10143],{"class":5249},[5228,13778,6006],{"class":5241},[5228,13780,5250],{"class":5249},[5228,13782,13783,13785,13787,13789,13791,13794],{"class":5230,"line":6105},[5228,13784,13209],{"class":5259},[5228,13786,5112],{"class":5249},[5228,13788,6361],{"class":5427},[5228,13790,5431],{"class":5249},[5228,13792,13793],{"class":5703},"'Можна працювати з базою даних'",[5228,13795,5500],{"class":5249},[5228,13797,13798],{"class":5230,"line":6110},[5228,13799,13229],{"class":5249},[5228,13801,13802,13804,13806,13808,13810,13812,13814],{"class":5230,"line":6115},[5228,13803,13190],{"class":5249},[5228,13805,9520],{"class":5427},[5228,13807,7085],{"class":5249},[5228,13809,7907],{"class":5259},[5228,13811,6003],{"class":5249},[5228,13813,6006],{"class":5241},[5228,13815,5250],{"class":5249},[5228,13817,13818,13820,13822,13824,13826,13829,13831,13833],{"class":5230,"line":6146},[5228,13819,13209],{"class":5259},[5228,13821,5112],{"class":5249},[5228,13823,7907],{"class":5427},[5228,13825,5431],{"class":5249},[5228,13827,13828],{"class":5703},"'Не вдалося підключитися:'",[5228,13830,5442],{"class":5249},[5228,13832,7907],{"class":5259},[5228,13834,5500],{"class":5249},[5228,13836,13837],{"class":5230,"line":6163},[5228,13838,13269],{"class":5249},[6252,13840,13841,13842,13845,13846,13848,13849,13852],{},"Функція ",[5109,13843,13844],{},"once()"," із модуля ",[5109,13847,6271],{}," перетворює подію у Promise, що вирішується при першому спрацюванні події. Це зручно для очікування одноразових подій (наприклад, ",[5109,13850,13851],{},"listening"," у HTTP-сервері) в асинхронних функціях.",[5185,13854,13856],{"id":13855},"обмеження-та-застереження-при-роботі-з-eventemitter","Обмеження та застереження при роботі з EventEmitter",[6442,13858,13860],{"id":13859},"проблема-1-витік-памяті-через-забуті-слухачі","Проблема 1: Витік пам'яті через забуті слухачі",[5190,13862,13863],{},"Якщо слухачі подій не відписуються при знищенні об'єкта, вони залишаються у пам'яті, утримуючи посилання на об'єкт:",[5219,13865,13867],{"className":5221,"code":13866,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst globalEmitter = new EventEmitter();\n\nfunction createUser(userId: string): void {\n  const userData = { userId, createdAt: new Date() }; \u002F\u002F Великий об'єкт у пам'яті\n\n  \u002F\u002F ❌ АНТИПАТТЕРН: Слухач не відписується\n  globalEmitter.on('broadcast', (message: string) => {\n    console.log(`Користувач ${userData.userId} отримав: ${message}`);\n  });\n  \n  \u002F\u002F Після завершення функції userData має бути звільнено з пам'яті,\n  \u002F\u002F але слухач утримує посилання на неї через замикання (closure)\n}\n\n\u002F\u002F Створюємо 10000 користувачів\nfor (let i = 0; i \u003C 10000; i++) {\n  createUser(`user-${i}`);\n}\n\nconsole.log('Кількість слухачів:', globalEmitter.listenerCount('broadcast')); \u002F\u002F 10000\n\n\u002F\u002F Всі об'єкти userData залишаються у пам'яті через слухачів!\n",[5109,13868,13869,13885,13889,13904,13908,13929,13956,13960,13965,13993,14029,14033,14037,14042,14047,14051,14055,14060,14094,14114,14118,14122,14155,14159],{"__ignoreMap":5224},[5228,13870,13871,13873,13875,13877,13879,13881,13883],{"class":5230,"line":5231},[5228,13872,5689],{"class":5480},[5228,13874,5692],{"class":5249},[5228,13876,5111],{"class":5259},[5228,13878,5697],{"class":5249},[5228,13880,5700],{"class":5480},[5228,13882,5704],{"class":5703},[5228,13884,5269],{"class":5249},[5228,13886,13887],{"class":5230,"line":5238},[5228,13888,5306],{"emptyLinePlaceholder":5305},[5228,13890,13891,13893,13896,13898,13900,13902],{"class":5230,"line":5253},[5228,13892,5952],{"class":5241},[5228,13894,13895],{"class":5474}," globalEmitter",[5228,13897,5371],{"class":5249},[5228,13899,5960],{"class":5241},[5228,13901,5786],{"class":5427},[5228,13903,5965],{"class":5249},[5228,13905,13906],{"class":5230,"line":5272},[5228,13907,5306],{"emptyLinePlaceholder":5305},[5228,13909,13910,13912,13915,13917,13919,13921,13923,13925,13927],{"class":5230,"line":5287},[5228,13911,6504],{"class":5241},[5228,13913,13914],{"class":5427}," createUser",[5228,13916,5431],{"class":5249},[5228,13918,5434],{"class":5259},[5228,13920,5263],{"class":5249},[5228,13922,5439],{"class":5245},[5228,13924,6519],{"class":5249},[5228,13926,6522],{"class":5245},[5228,13928,5250],{"class":5249},[5228,13930,13931,13933,13936,13939,13941,13943,13946,13948,13950,13953],{"class":5230,"line":5302},[5228,13932,9167],{"class":5241},[5228,13934,13935],{"class":5474}," userData",[5228,13937,13938],{"class":5249}," = { ",[5228,13940,5434],{"class":5259},[5228,13942,5442],{"class":5249},[5228,13944,13945],{"class":5259},"createdAt:",[5228,13947,8342],{"class":5241},[5228,13949,7369],{"class":5427},[5228,13951,13952],{"class":5249},"() }; ",[5228,13954,13955],{"class":5234},"\u002F\u002F Великий об'єкт у пам'яті\n",[5228,13957,13958],{"class":5230,"line":5309},[5228,13959,5306],{"emptyLinePlaceholder":5305},[5228,13961,13962],{"class":5230,"line":5318},[5228,13963,13964],{"class":5234},"  \u002F\u002F ❌ АНТИПАТТЕРН: Слухач не відписується\n",[5228,13966,13967,13970,13972,13974,13976,13979,13981,13983,13985,13987,13989,13991],{"class":5230,"line":5331},[5228,13968,13969],{"class":5259},"  globalEmitter",[5228,13971,5112],{"class":5249},[5228,13973,5981],{"class":5427},[5228,13975,5431],{"class":5249},[5228,13977,13978],{"class":5703},"'broadcast'",[5228,13980,6338],{"class":5249},[5228,13982,6341],{"class":5259},[5228,13984,5263],{"class":5249},[5228,13986,5439],{"class":5245},[5228,13988,6003],{"class":5249},[5228,13990,6006],{"class":5241},[5228,13992,5250],{"class":5249},[5228,13994,13995,13997,13999,14001,14003,14005,14007,14010,14012,14014,14016,14019,14021,14023,14025,14027],{"class":5230,"line":5343},[5228,13996,13209],{"class":5259},[5228,13998,5112],{"class":5249},[5228,14000,6361],{"class":5427},[5228,14002,5431],{"class":5249},[5228,14004,7266],{"class":5703},[5228,14006,6540],{"class":5241},[5228,14008,14009],{"class":5259},"userData",[5228,14011,5112],{"class":7320},[5228,14013,5434],{"class":5259},[5228,14015,6545],{"class":5241},[5228,14017,14018],{"class":5703}," отримав: ",[5228,14020,6540],{"class":5241},[5228,14022,6341],{"class":5259},[5228,14024,6545],{"class":5241},[5228,14026,6548],{"class":5703},[5228,14028,5500],{"class":5249},[5228,14030,14031],{"class":5230,"line":5354},[5228,14032,13269],{"class":5249},[5228,14034,14035],{"class":5230,"line":5360},[5228,14036,9816],{"class":5249},[5228,14038,14039],{"class":5230,"line":5378},[5228,14040,14041],{"class":5234},"  \u002F\u002F Після завершення функції userData має бути звільнено з пам'яті,\n",[5228,14043,14044],{"class":5230,"line":5394},[5228,14045,14046],{"class":5234},"  \u002F\u002F але слухач утримує посилання на неї через замикання (closure)\n",[5228,14048,14049],{"class":5230,"line":5410},[5228,14050,5610],{"class":5249},[5228,14052,14053],{"class":5230,"line":5416},[5228,14054,5306],{"emptyLinePlaceholder":5305},[5228,14056,14057],{"class":5230,"line":5421},[5228,14058,14059],{"class":5234},"\u002F\u002F Створюємо 10000 користувачів\n",[5228,14061,14062,14065,14067,14070,14073,14075,14077,14079,14082,14084,14087,14089,14091],{"class":5230,"line":5468},[5228,14063,14064],{"class":5480},"for",[5228,14066,5102],{"class":5249},[5228,14068,14069],{"class":5241},"let",[5228,14071,14072],{"class":5259}," i",[5228,14074,5371],{"class":5249},[5228,14076,9911],{"class":7154},[5228,14078,8917],{"class":5249},[5228,14080,14081],{"class":5259},"i",[5228,14083,10080],{"class":5249},[5228,14085,14086],{"class":7154},"10000",[5228,14088,8917],{"class":5249},[5228,14090,14081],{"class":5259},[5228,14092,14093],{"class":5249},"++) {\n",[5228,14095,14096,14099,14101,14104,14106,14108,14110,14112],{"class":5230,"line":5503},[5228,14097,14098],{"class":5427},"  createUser",[5228,14100,5431],{"class":5249},[5228,14102,14103],{"class":5703},"`user-",[5228,14105,6540],{"class":5241},[5228,14107,14081],{"class":5259},[5228,14109,6545],{"class":5241},[5228,14111,6548],{"class":5703},[5228,14113,5500],{"class":5249},[5228,14115,14116],{"class":5230,"line":5509},[5228,14117,5610],{"class":5249},[5228,14119,14120],{"class":5230,"line":5515},[5228,14121,5306],{"emptyLinePlaceholder":5305},[5228,14123,14124,14126,14128,14130,14132,14135,14137,14140,14142,14145,14147,14149,14152],{"class":5230,"line":5543},[5228,14125,7459],{"class":5259},[5228,14127,5112],{"class":5249},[5228,14129,6361],{"class":5427},[5228,14131,5431],{"class":5249},[5228,14133,14134],{"class":5703},"'Кількість слухачів:'",[5228,14136,5442],{"class":5249},[5228,14138,14139],{"class":5259},"globalEmitter",[5228,14141,5112],{"class":5249},[5228,14143,14144],{"class":5427},"listenerCount",[5228,14146,5431],{"class":5249},[5228,14148,13978],{"class":5703},[5228,14150,14151],{"class":5249},")); ",[5228,14153,14154],{"class":5234},"\u002F\u002F 10000\n",[5228,14156,14157],{"class":5230,"line":5565},[5228,14158,5306],{"emptyLinePlaceholder":5305},[5228,14160,14161],{"class":5230,"line":5587},[5228,14162,14163],{"class":5234},"\u002F\u002F Всі об'єкти userData залишаються у пам'яті через слухачів!\n",[5190,14165,14166],{},"Правильне рішення: відписка при знищенні об'єкта:",[5219,14168,14170],{"className":5221,"code":14169,"language":5223,"meta":5224,"style":5224},"class User {\n  constructor(\n    private userId: string,\n    private emitter: EventEmitter\n  ) {\n    this.onBroadcast = this.onBroadcast.bind(this);\n    this.emitter.on('broadcast', this.onBroadcast);\n  }\n\n  private onBroadcast(message: string): void {\n    console.log(`Користувач ${this.userId} отримав: ${message}`);\n  }\n\n  destroy(): void {\n    \u002F\u002F ✅ ПРАВИЛЬНО: Відписуємось при знищенні\n    this.emitter.off('broadcast', this.onBroadcast);\n    console.log(`Користувач ${this.userId} відписався`);\n  }\n}\n\nconst emitter = new EventEmitter();\n\nconst users: User[] = [];\nfor (let i = 0; i \u003C 10; i++) {\n  users.push(new User(`user-${i}`, emitter));\n}\n\nconsole.log('Кількість слухачів:', emitter.listenerCount('broadcast')); \u002F\u002F 10\n\n\u002F\u002F Знищуємо користувачів\nusers.forEach(user => user.destroy());\n\nconsole.log('Кількість слухачів після очищення:', emitter.listenerCount('broadcast')); \u002F\u002F 0\n",[5109,14171,14172,14181,14187,14201,14212,14216,14244,14270,14274,14278,14299,14333,14337,14341,14352,14357,14383,14410,14414,14418,14422,14436,14440,14454,14483,14516,14520,14524,14553,14557,14562,14590,14594],{"__ignoreMap":5224},[5228,14173,14174,14176,14179],{"class":5230,"line":5231},[5228,14175,5242],{"class":5241},[5228,14177,14178],{"class":5245}," User",[5228,14180,5250],{"class":5249},[5228,14182,14183,14185],{"class":5230,"line":5238},[5228,14184,5312],{"class":5241},[5228,14186,5315],{"class":5249},[5228,14188,14189,14192,14195,14197,14199],{"class":5230,"line":5253},[5228,14190,14191],{"class":5241},"    private",[5228,14193,14194],{"class":5259}," userId",[5228,14196,5263],{"class":5249},[5228,14198,5439],{"class":5245},[5228,14200,5328],{"class":5249},[5228,14202,14203,14205,14207,14209],{"class":5230,"line":5272},[5228,14204,14191],{"class":5241},[5228,14206,6304],{"class":5259},[5228,14208,5263],{"class":5249},[5228,14210,14211],{"class":5245},"EventEmitter\n",[5228,14213,14214],{"class":5230,"line":5287},[5228,14215,5357],{"class":5249},[5228,14217,14218,14220,14222,14225,14227,14229,14231,14233,14235,14238,14240,14242],{"class":5230,"line":5302},[5228,14219,5363],{"class":5241},[5228,14221,5112],{"class":5249},[5228,14223,14224],{"class":5259},"onBroadcast",[5228,14226,5371],{"class":5249},[5228,14228,8788],{"class":5241},[5228,14230,5112],{"class":5249},[5228,14232,14224],{"class":5259},[5228,14234,5112],{"class":5249},[5228,14236,14237],{"class":5427},"bind",[5228,14239,5431],{"class":5249},[5228,14241,8788],{"class":5241},[5228,14243,5500],{"class":5249},[5228,14245,14246,14248,14250,14252,14254,14256,14258,14260,14262,14264,14266,14268],{"class":5230,"line":5309},[5228,14247,5363],{"class":5241},[5228,14249,5112],{"class":5249},[5228,14251,6326],{"class":5259},[5228,14253,5112],{"class":5249},[5228,14255,5981],{"class":5427},[5228,14257,5431],{"class":5249},[5228,14259,13978],{"class":5703},[5228,14261,5442],{"class":5249},[5228,14263,8788],{"class":5241},[5228,14265,5112],{"class":5249},[5228,14267,14224],{"class":5259},[5228,14269,5500],{"class":5249},[5228,14271,14272],{"class":5230,"line":5318},[5228,14273,5413],{"class":5249},[5228,14275,14276],{"class":5230,"line":5331},[5228,14277,5306],{"emptyLinePlaceholder":5305},[5228,14279,14280,14282,14285,14287,14289,14291,14293,14295,14297],{"class":5230,"line":5343},[5228,14281,5256],{"class":5241},[5228,14283,14284],{"class":5427}," onBroadcast",[5228,14286,5431],{"class":5249},[5228,14288,6341],{"class":5259},[5228,14290,5263],{"class":5249},[5228,14292,5439],{"class":5245},[5228,14294,6519],{"class":5249},[5228,14296,6522],{"class":5245},[5228,14298,5250],{"class":5249},[5228,14300,14301,14303,14305,14307,14309,14311,14313,14315,14317,14319,14321,14323,14325,14327,14329,14331],{"class":5230,"line":5354},[5228,14302,13209],{"class":5259},[5228,14304,5112],{"class":5249},[5228,14306,6361],{"class":5427},[5228,14308,5431],{"class":5249},[5228,14310,7266],{"class":5703},[5228,14312,6540],{"class":5241},[5228,14314,8788],{"class":5241},[5228,14316,5112],{"class":7320},[5228,14318,5434],{"class":5259},[5228,14320,6545],{"class":5241},[5228,14322,14018],{"class":5703},[5228,14324,6540],{"class":5241},[5228,14326,6341],{"class":5259},[5228,14328,6545],{"class":5241},[5228,14330,6548],{"class":5703},[5228,14332,5500],{"class":5249},[5228,14334,14335],{"class":5230,"line":5360},[5228,14336,5413],{"class":5249},[5228,14338,14339],{"class":5230,"line":5378},[5228,14340,5306],{"emptyLinePlaceholder":5305},[5228,14342,14343,14346,14348,14350],{"class":5230,"line":5394},[5228,14344,14345],{"class":5427},"  destroy",[5228,14347,8706],{"class":5249},[5228,14349,6522],{"class":5245},[5228,14351,5250],{"class":5249},[5228,14353,14354],{"class":5230,"line":5410},[5228,14355,14356],{"class":5234},"    \u002F\u002F ✅ ПРАВИЛЬНО: Відписуємось при знищенні\n",[5228,14358,14359,14361,14363,14365,14367,14369,14371,14373,14375,14377,14379,14381],{"class":5230,"line":5416},[5228,14360,5363],{"class":5241},[5228,14362,5112],{"class":5249},[5228,14364,6326],{"class":5259},[5228,14366,5112],{"class":5249},[5228,14368,7721],{"class":5427},[5228,14370,5431],{"class":5249},[5228,14372,13978],{"class":5703},[5228,14374,5442],{"class":5249},[5228,14376,8788],{"class":5241},[5228,14378,5112],{"class":5249},[5228,14380,14224],{"class":5259},[5228,14382,5500],{"class":5249},[5228,14384,14385,14387,14389,14391,14393,14395,14397,14399,14401,14403,14405,14408],{"class":5230,"line":5421},[5228,14386,13209],{"class":5259},[5228,14388,5112],{"class":5249},[5228,14390,6361],{"class":5427},[5228,14392,5431],{"class":5249},[5228,14394,7266],{"class":5703},[5228,14396,6540],{"class":5241},[5228,14398,8788],{"class":5241},[5228,14400,5112],{"class":7320},[5228,14402,5434],{"class":5259},[5228,14404,6545],{"class":5241},[5228,14406,14407],{"class":5703}," відписався`",[5228,14409,5500],{"class":5249},[5228,14411,14412],{"class":5230,"line":5468},[5228,14413,5413],{"class":5249},[5228,14415,14416],{"class":5230,"line":5503},[5228,14417,5610],{"class":5249},[5228,14419,14420],{"class":5230,"line":5509},[5228,14421,5306],{"emptyLinePlaceholder":5305},[5228,14423,14424,14426,14428,14430,14432,14434],{"class":5230,"line":5515},[5228,14425,5952],{"class":5241},[5228,14427,6304],{"class":5474},[5228,14429,5371],{"class":5249},[5228,14431,5960],{"class":5241},[5228,14433,5786],{"class":5427},[5228,14435,5965],{"class":5249},[5228,14437,14438],{"class":5230,"line":5543},[5228,14439,5306],{"emptyLinePlaceholder":5305},[5228,14441,14442,14444,14447,14449,14452],{"class":5230,"line":5565},[5228,14443,5952],{"class":5241},[5228,14445,14446],{"class":5474}," users",[5228,14448,5263],{"class":5249},[5228,14450,14451],{"class":5245},"User",[5228,14453,8256],{"class":5249},[5228,14455,14456,14458,14460,14462,14464,14466,14468,14470,14472,14474,14477,14479,14481],{"class":5230,"line":5587},[5228,14457,14064],{"class":5480},[5228,14459,5102],{"class":5249},[5228,14461,14069],{"class":5241},[5228,14463,14072],{"class":5259},[5228,14465,5371],{"class":5249},[5228,14467,9911],{"class":7154},[5228,14469,8917],{"class":5249},[5228,14471,14081],{"class":5259},[5228,14473,10080],{"class":5249},[5228,14475,14476],{"class":7154},"10",[5228,14478,8917],{"class":5249},[5228,14480,14081],{"class":5259},[5228,14482,14093],{"class":5249},[5228,14484,14485,14488,14490,14492,14494,14496,14498,14500,14502,14504,14506,14508,14510,14512,14514],{"class":5230,"line":5592},[5228,14486,14487],{"class":5259},"  users",[5228,14489,5112],{"class":5249},[5228,14491,8375],{"class":5427},[5228,14493,5431],{"class":5249},[5228,14495,5960],{"class":5241},[5228,14497,14178],{"class":5427},[5228,14499,5431],{"class":5249},[5228,14501,14103],{"class":5703},[5228,14503,6540],{"class":5241},[5228,14505,14081],{"class":5259},[5228,14507,6545],{"class":5241},[5228,14509,6548],{"class":5703},[5228,14511,5442],{"class":5249},[5228,14513,6326],{"class":5259},[5228,14515,7854],{"class":5249},[5228,14517,14518],{"class":5230,"line":5602},[5228,14519,5610],{"class":5249},[5228,14521,14522],{"class":5230,"line":5607},[5228,14523,5306],{"emptyLinePlaceholder":5305},[5228,14525,14526,14528,14530,14532,14534,14536,14538,14540,14542,14544,14546,14548,14550],{"class":5230,"line":5949},[5228,14527,7459],{"class":5259},[5228,14529,5112],{"class":5249},[5228,14531,6361],{"class":5427},[5228,14533,5431],{"class":5249},[5228,14535,14134],{"class":5703},[5228,14537,5442],{"class":5249},[5228,14539,6326],{"class":5259},[5228,14541,5112],{"class":5249},[5228,14543,14144],{"class":5427},[5228,14545,5431],{"class":5249},[5228,14547,13978],{"class":5703},[5228,14549,14151],{"class":5249},[5228,14551,14552],{"class":5234},"\u002F\u002F 10\n",[5228,14554,14555],{"class":5230,"line":5968},[5228,14556,5306],{"emptyLinePlaceholder":5305},[5228,14558,14559],{"class":5230,"line":5973},[5228,14560,14561],{"class":5234},"\u002F\u002F Знищуємо користувачів\n",[5228,14563,14564,14567,14569,14572,14574,14577,14580,14583,14585,14588],{"class":5230,"line":6011},[5228,14565,14566],{"class":5259},"users",[5228,14568,5112],{"class":5249},[5228,14570,14571],{"class":5427},"forEach",[5228,14573,5431],{"class":5249},[5228,14575,14576],{"class":5259},"user",[5228,14578,14579],{"class":5241}," =>",[5228,14581,14582],{"class":5259}," user",[5228,14584,5112],{"class":5249},[5228,14586,14587],{"class":5427},"destroy",[5228,14589,7372],{"class":5249},[5228,14591,14592],{"class":5230,"line":6042},[5228,14593,5306],{"emptyLinePlaceholder":5305},[5228,14595,14596,14598,14600,14602,14604,14607,14609,14611,14613,14615,14617,14619,14621],{"class":5230,"line":6048},[5228,14597,7459],{"class":5259},[5228,14599,5112],{"class":5249},[5228,14601,6361],{"class":5427},[5228,14603,5431],{"class":5249},[5228,14605,14606],{"class":5703},"'Кількість слухачів після очищення:'",[5228,14608,5442],{"class":5249},[5228,14610,6326],{"class":5259},[5228,14612,5112],{"class":5249},[5228,14614,14144],{"class":5427},[5228,14616,5431],{"class":5249},[5228,14618,13978],{"class":5703},[5228,14620,14151],{"class":5249},[5228,14622,14623],{"class":5234},"\u002F\u002F 0\n",[7547,14625,14626,14627,14630,14631,14634],{},"Node.js виводить попередження ",[5109,14628,14629],{},"MaxListenersExceededWarning",", якщо до однієї події додано більше 10 слухачів. Це може сигналізувати про витік пам'яті. Для легітимних випадків (наприклад, чат-сервер з тисячами клієнтів) використовуйте ",[5109,14632,14633],{},"emitter.setMaxListeners(n)"," для збільшення ліміту.",[6442,14636,14638],{"id":14637},"проблема-2-синхронність-слухачів-блокує-event-loop","Проблема 2: Синхронність слухачів блокує Event Loop",[5190,14640,14641,14642,14644],{},"Слухачі подій викликаються синхронно при виклику ",[5109,14643,7396],{},":",[5219,14646,14648],{"className":5221,"code":14647,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\nemitter.on('heavyTask', () => {\n  console.log('Початок важкого обчислення');\n  \n  \u002F\u002F ❌ АНТИПАТТЕРН: Блокуюче обчислення у слухачі\n  let sum = 0;\n  for (let i = 0; i \u003C 5_000_000_000; i++) {\n    sum += i;\n  }\n  \n  console.log('Обчислення завершено:', sum);\n});\n\nconsole.log('Перед emit');\nemitter.emit('heavyTask'); \u002F\u002F Блокує Event Loop на кілька секунд\nconsole.log('Після emit');\n",[5109,14649,14650,14666,14670,14684,14688,14707,14722,14726,14731,14745,14775,14787,14791,14795,14815,14819,14823,14838,14855],{"__ignoreMap":5224},[5228,14651,14652,14654,14656,14658,14660,14662,14664],{"class":5230,"line":5231},[5228,14653,5689],{"class":5480},[5228,14655,5692],{"class":5249},[5228,14657,5111],{"class":5259},[5228,14659,5697],{"class":5249},[5228,14661,5700],{"class":5480},[5228,14663,5704],{"class":5703},[5228,14665,5269],{"class":5249},[5228,14667,14668],{"class":5230,"line":5238},[5228,14669,5306],{"emptyLinePlaceholder":5305},[5228,14671,14672,14674,14676,14678,14680,14682],{"class":5230,"line":5253},[5228,14673,5952],{"class":5241},[5228,14675,6304],{"class":5474},[5228,14677,5371],{"class":5249},[5228,14679,5960],{"class":5241},[5228,14681,5786],{"class":5427},[5228,14683,5965],{"class":5249},[5228,14685,14686],{"class":5230,"line":5272},[5228,14687,5306],{"emptyLinePlaceholder":5305},[5228,14689,14690,14692,14694,14696,14698,14701,14703,14705],{"class":5230,"line":5287},[5228,14691,6326],{"class":5259},[5228,14693,5112],{"class":5249},[5228,14695,5981],{"class":5427},[5228,14697,5431],{"class":5249},[5228,14699,14700],{"class":5703},"'heavyTask'",[5228,14702,6885],{"class":5249},[5228,14704,6006],{"class":5241},[5228,14706,5250],{"class":5249},[5228,14708,14709,14711,14713,14715,14717,14720],{"class":5230,"line":5302},[5228,14710,6356],{"class":5259},[5228,14712,5112],{"class":5249},[5228,14714,6361],{"class":5427},[5228,14716,5431],{"class":5249},[5228,14718,14719],{"class":5703},"'Початок важкого обчислення'",[5228,14721,5500],{"class":5249},[5228,14723,14724],{"class":5230,"line":5309},[5228,14725,9816],{"class":5249},[5228,14727,14728],{"class":5230,"line":5318},[5228,14729,14730],{"class":5234},"  \u002F\u002F ❌ АНТИПАТТЕРН: Блокуюче обчислення у слухачі\n",[5228,14732,14733,14736,14739,14741,14743],{"class":5230,"line":5331},[5228,14734,14735],{"class":5241},"  let",[5228,14737,14738],{"class":5259}," sum",[5228,14740,5371],{"class":5249},[5228,14742,9911],{"class":7154},[5228,14744,5269],{"class":5249},[5228,14746,14747,14750,14752,14754,14756,14758,14760,14762,14764,14766,14769,14771,14773],{"class":5230,"line":5343},[5228,14748,14749],{"class":5480},"  for",[5228,14751,5102],{"class":5249},[5228,14753,14069],{"class":5241},[5228,14755,14072],{"class":5259},[5228,14757,5371],{"class":5249},[5228,14759,9911],{"class":7154},[5228,14761,8917],{"class":5249},[5228,14763,14081],{"class":5259},[5228,14765,10080],{"class":5249},[5228,14767,14768],{"class":7154},"5_000_000_000",[5228,14770,8917],{"class":5249},[5228,14772,14081],{"class":5259},[5228,14774,14093],{"class":5249},[5228,14776,14777,14780,14783,14785],{"class":5230,"line":5354},[5228,14778,14779],{"class":5259},"    sum",[5228,14781,14782],{"class":5249}," += ",[5228,14784,14081],{"class":5259},[5228,14786,5269],{"class":5249},[5228,14788,14789],{"class":5230,"line":5360},[5228,14790,5413],{"class":5249},[5228,14792,14793],{"class":5230,"line":5378},[5228,14794,9816],{"class":5249},[5228,14796,14797,14799,14801,14803,14805,14808,14810,14813],{"class":5230,"line":5394},[5228,14798,6356],{"class":5259},[5228,14800,5112],{"class":5249},[5228,14802,6361],{"class":5427},[5228,14804,5431],{"class":5249},[5228,14806,14807],{"class":5703},"'Обчислення завершено:'",[5228,14809,5442],{"class":5249},[5228,14811,14812],{"class":5259},"sum",[5228,14814,5500],{"class":5249},[5228,14816,14817],{"class":5230,"line":5410},[5228,14818,6045],{"class":5249},[5228,14820,14821],{"class":5230,"line":5416},[5228,14822,5306],{"emptyLinePlaceholder":5305},[5228,14824,14825,14827,14829,14831,14833,14836],{"class":5230,"line":5421},[5228,14826,7459],{"class":5259},[5228,14828,5112],{"class":5249},[5228,14830,6361],{"class":5427},[5228,14832,5431],{"class":5249},[5228,14834,14835],{"class":5703},"'Перед emit'",[5228,14837,5500],{"class":5249},[5228,14839,14840,14842,14844,14846,14848,14850,14852],{"class":5230,"line":5468},[5228,14841,6326],{"class":5259},[5228,14843,5112],{"class":5249},[5228,14845,5864],{"class":5427},[5228,14847,5431],{"class":5249},[5228,14849,14700],{"class":5703},[5228,14851,6602],{"class":5249},[5228,14853,14854],{"class":5234},"\u002F\u002F Блокує Event Loop на кілька секунд\n",[5228,14856,14857,14859,14861,14863,14865,14868],{"class":5230,"line":5503},[5228,14858,7459],{"class":5259},[5228,14860,5112],{"class":5249},[5228,14862,6361],{"class":5427},[5228,14864,5431],{"class":5249},[5228,14866,14867],{"class":5703},"'Після emit'",[5228,14869,5500],{"class":5249},[5190,14871,14872],{},"Порядок виводу:",[5219,14874,14877],{"className":14875,"code":14876,"language":6675},[9537],"Перед emit\nПочаток важкого обчислення\nОбчислення завершено: 1.25e+19\nПісля emit\n",[5109,14878,14876],{"__ignoreMap":5224},[5190,14880,14881],{},"Event Loop заблоковано до завершення обчислення. Для CPU-інтенсивних завдань використовуйте Worker Threads або перенесіть обчислення у асинхронний контекст:",[5219,14883,14885],{"className":5221,"code":14884,"language":5223,"meta":5224,"style":5224},"emitter.on('heavyTask', async () => {\n  console.log('Початок важкого обчислення');\n  \n  \u002F\u002F ✅ ПРАВИЛЬНО: Виконуємо у окремому мікрозавданні\n  await new Promise\u003Cvoid>(resolve => {\n    setImmediate(() => {\n      let sum = 0;\n      for (let i = 0; i \u003C 5_000_000_000; i++) {\n        sum += i;\n      }\n      console.log('Обчислення завершено:', sum);\n      resolve();\n    });\n  });\n});\n",[5109,14886,14887,14910,14924,14928,14933,14955,14966,14979,15008,15019,15023,15042,15049,15053,15057],{"__ignoreMap":5224},[5228,14888,14889,14891,14893,14895,14897,14899,14901,14903,14906,14908],{"class":5230,"line":5231},[5228,14890,6326],{"class":5259},[5228,14892,5112],{"class":5249},[5228,14894,5981],{"class":5427},[5228,14896,5431],{"class":5249},[5228,14898,14700],{"class":5703},[5228,14900,5442],{"class":5249},[5228,14902,5990],{"class":5241},[5228,14904,14905],{"class":5249}," () ",[5228,14907,6006],{"class":5241},[5228,14909,5250],{"class":5249},[5228,14911,14912,14914,14916,14918,14920,14922],{"class":5230,"line":5238},[5228,14913,6356],{"class":5259},[5228,14915,5112],{"class":5249},[5228,14917,6361],{"class":5427},[5228,14919,5431],{"class":5249},[5228,14921,14719],{"class":5703},[5228,14923,5500],{"class":5249},[5228,14925,14926],{"class":5230,"line":5253},[5228,14927,9816],{"class":5249},[5228,14929,14930],{"class":5230,"line":5272},[5228,14931,14932],{"class":5234},"  \u002F\u002F ✅ ПРАВИЛЬНО: Виконуємо у окремому мікрозавданні\n",[5228,14934,14935,14937,14939,14942,14944,14946,14948,14951,14953],{"class":5230,"line":5287},[5228,14936,6014],{"class":5480},[5228,14938,8342],{"class":5241},[5228,14940,14941],{"class":5245}," Promise",[5228,14943,5459],{"class":5249},[5228,14945,6522],{"class":5245},[5228,14947,10729],{"class":5249},[5228,14949,14950],{"class":5259},"resolve",[5228,14952,14579],{"class":5241},[5228,14954,5250],{"class":5249},[5228,14956,14957,14960,14962,14964],{"class":5230,"line":5302},[5228,14958,14959],{"class":5427},"    setImmediate",[5228,14961,10143],{"class":5249},[5228,14963,6006],{"class":5241},[5228,14965,5250],{"class":5249},[5228,14967,14968,14971,14973,14975,14977],{"class":5230,"line":5309},[5228,14969,14970],{"class":5241},"      let",[5228,14972,14738],{"class":5259},[5228,14974,5371],{"class":5249},[5228,14976,9911],{"class":7154},[5228,14978,5269],{"class":5249},[5228,14980,14981,14984,14986,14988,14990,14992,14994,14996,14998,15000,15002,15004,15006],{"class":5230,"line":5318},[5228,14982,14983],{"class":5480},"      for",[5228,14985,5102],{"class":5249},[5228,14987,14069],{"class":5241},[5228,14989,14072],{"class":5259},[5228,14991,5371],{"class":5249},[5228,14993,9911],{"class":7154},[5228,14995,8917],{"class":5249},[5228,14997,14081],{"class":5259},[5228,14999,10080],{"class":5249},[5228,15001,14768],{"class":7154},[5228,15003,8917],{"class":5249},[5228,15005,14081],{"class":5259},[5228,15007,14093],{"class":5249},[5228,15009,15010,15013,15015,15017],{"class":5230,"line":5331},[5228,15011,15012],{"class":5259},"        sum",[5228,15014,14782],{"class":5249},[5228,15016,14081],{"class":5259},[5228,15018,5269],{"class":5249},[5228,15020,15021],{"class":5230,"line":5343},[5228,15022,10222],{"class":5249},[5228,15024,15025,15028,15030,15032,15034,15036,15038,15040],{"class":5230,"line":5354},[5228,15026,15027],{"class":5259},"      console",[5228,15029,5112],{"class":5249},[5228,15031,6361],{"class":5427},[5228,15033,5431],{"class":5249},[5228,15035,14807],{"class":5703},[5228,15037,5442],{"class":5249},[5228,15039,14812],{"class":5259},[5228,15041,5500],{"class":5249},[5228,15043,15044,15047],{"class":5230,"line":5360},[5228,15045,15046],{"class":5427},"      resolve",[5228,15048,5965],{"class":5249},[5228,15050,15051],{"class":5230,"line":5378},[5228,15052,5917],{"class":5249},[5228,15054,15055],{"class":5230,"line":5394},[5228,15056,13269],{"class":5249},[5228,15058,15059],{"class":5230,"line":5410},[5228,15060,6045],{"class":5249},[6801,15062,15063,15064,15066,15067,15069],{},"Якщо слухач подій виконує асинхронну операцію (запит до БД, HTTP-виклик), використовуйте ",[5109,15065,5990],{}," функції. Проте пам'ятайте, що ",[5109,15068,7396],{}," не чекає завершення асинхронних слухачів — вони виконуються паралельно.",[6442,15071,15073],{"id":15072},"проблема-3-порядок-викликів-слухачів","Проблема 3: Порядок викликів слухачів",[5190,15075,15076],{},"Слухачі викликаються у порядку їх реєстрації:",[5219,15078,15080],{"className":5221,"code":15079,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\nemitter.on('log', () => console.log('Слухач 1'));\nemitter.on('log', () => console.log('Слухач 2'));\nemitter.on('log', () => console.log('Слухач 3'));\n\nemitter.emit('log');\n\u002F\u002F Вивід:\n\u002F\u002F Слухач 1\n\u002F\u002F Слухач 2\n\u002F\u002F Слухач 3\n",[5109,15081,15082,15098,15102,15116,15120,15149,15178,15207,15211,15225,15229,15234,15239],{"__ignoreMap":5224},[5228,15083,15084,15086,15088,15090,15092,15094,15096],{"class":5230,"line":5231},[5228,15085,5689],{"class":5480},[5228,15087,5692],{"class":5249},[5228,15089,5111],{"class":5259},[5228,15091,5697],{"class":5249},[5228,15093,5700],{"class":5480},[5228,15095,5704],{"class":5703},[5228,15097,5269],{"class":5249},[5228,15099,15100],{"class":5230,"line":5238},[5228,15101,5306],{"emptyLinePlaceholder":5305},[5228,15103,15104,15106,15108,15110,15112,15114],{"class":5230,"line":5253},[5228,15105,5952],{"class":5241},[5228,15107,6304],{"class":5474},[5228,15109,5371],{"class":5249},[5228,15111,5960],{"class":5241},[5228,15113,5786],{"class":5427},[5228,15115,5965],{"class":5249},[5228,15117,15118],{"class":5230,"line":5272},[5228,15119,5306],{"emptyLinePlaceholder":5305},[5228,15121,15122,15124,15126,15128,15130,15132,15134,15136,15138,15140,15142,15144,15147],{"class":5230,"line":5287},[5228,15123,6326],{"class":5259},[5228,15125,5112],{"class":5249},[5228,15127,5981],{"class":5427},[5228,15129,5431],{"class":5249},[5228,15131,7835],{"class":5703},[5228,15133,6885],{"class":5249},[5228,15135,6006],{"class":5241},[5228,15137,7842],{"class":5259},[5228,15139,5112],{"class":5249},[5228,15141,6361],{"class":5427},[5228,15143,5431],{"class":5249},[5228,15145,15146],{"class":5703},"'Слухач 1'",[5228,15148,7854],{"class":5249},[5228,15150,15151,15153,15155,15157,15159,15161,15163,15165,15167,15169,15171,15173,15176],{"class":5230,"line":5302},[5228,15152,6326],{"class":5259},[5228,15154,5112],{"class":5249},[5228,15156,5981],{"class":5427},[5228,15158,5431],{"class":5249},[5228,15160,7835],{"class":5703},[5228,15162,6885],{"class":5249},[5228,15164,6006],{"class":5241},[5228,15166,7842],{"class":5259},[5228,15168,5112],{"class":5249},[5228,15170,6361],{"class":5427},[5228,15172,5431],{"class":5249},[5228,15174,15175],{"class":5703},"'Слухач 2'",[5228,15177,7854],{"class":5249},[5228,15179,15180,15182,15184,15186,15188,15190,15192,15194,15196,15198,15200,15202,15205],{"class":5230,"line":5309},[5228,15181,6326],{"class":5259},[5228,15183,5112],{"class":5249},[5228,15185,5981],{"class":5427},[5228,15187,5431],{"class":5249},[5228,15189,7835],{"class":5703},[5228,15191,6885],{"class":5249},[5228,15193,6006],{"class":5241},[5228,15195,7842],{"class":5259},[5228,15197,5112],{"class":5249},[5228,15199,6361],{"class":5427},[5228,15201,5431],{"class":5249},[5228,15203,15204],{"class":5703},"'Слухач 3'",[5228,15206,7854],{"class":5249},[5228,15208,15209],{"class":5230,"line":5318},[5228,15210,5306],{"emptyLinePlaceholder":5305},[5228,15212,15213,15215,15217,15219,15221,15223],{"class":5230,"line":5331},[5228,15214,6326],{"class":5259},[5228,15216,5112],{"class":5249},[5228,15218,5864],{"class":5427},[5228,15220,5431],{"class":5249},[5228,15222,7835],{"class":5703},[5228,15224,5500],{"class":5249},[5228,15226,15227],{"class":5230,"line":5343},[5228,15228,6789],{"class":5234},[5228,15230,15231],{"class":5230,"line":5354},[5228,15232,15233],{"class":5234},"\u002F\u002F Слухач 1\n",[5228,15235,15236],{"class":5230,"line":5360},[5228,15237,15238],{"class":5234},"\u002F\u002F Слухач 2\n",[5228,15240,15241],{"class":5230,"line":5378},[5228,15242,15243],{"class":5234},"\u002F\u002F Слухач 3\n",[5190,15245,15246,15247,14644],{},"Якщо потрібно змінити порядок, використовуйте ",[5109,15248,15249],{},"prependListener()",[5219,15251,15253],{"className":5221,"code":15252,"language":5223,"meta":5224,"style":5224},"emitter.on('log', () => console.log('Слухач A'));\nemitter.prependListener('log', () => console.log('Слухач B (додано першим)')); \u002F\u002F Додається на початок\n\nemitter.emit('log');\n\u002F\u002F Вівід:\n\u002F\u002F Слухач B (додано першим)\n\u002F\u002F Слухач A\n",[5109,15254,15255,15284,15317,15321,15335,15340,15345],{"__ignoreMap":5224},[5228,15256,15257,15259,15261,15263,15265,15267,15269,15271,15273,15275,15277,15279,15282],{"class":5230,"line":5231},[5228,15258,6326],{"class":5259},[5228,15260,5112],{"class":5249},[5228,15262,5981],{"class":5427},[5228,15264,5431],{"class":5249},[5228,15266,7835],{"class":5703},[5228,15268,6885],{"class":5249},[5228,15270,6006],{"class":5241},[5228,15272,7842],{"class":5259},[5228,15274,5112],{"class":5249},[5228,15276,6361],{"class":5427},[5228,15278,5431],{"class":5249},[5228,15280,15281],{"class":5703},"'Слухач A'",[5228,15283,7854],{"class":5249},[5228,15285,15286,15288,15290,15293,15295,15297,15299,15301,15303,15305,15307,15309,15312,15314],{"class":5230,"line":5238},[5228,15287,6326],{"class":5259},[5228,15289,5112],{"class":5249},[5228,15291,15292],{"class":5427},"prependListener",[5228,15294,5431],{"class":5249},[5228,15296,7835],{"class":5703},[5228,15298,6885],{"class":5249},[5228,15300,6006],{"class":5241},[5228,15302,7842],{"class":5259},[5228,15304,5112],{"class":5249},[5228,15306,6361],{"class":5427},[5228,15308,5431],{"class":5249},[5228,15310,15311],{"class":5703},"'Слухач B (додано першим)'",[5228,15313,14151],{"class":5249},[5228,15315,15316],{"class":5234},"\u002F\u002F Додається на початок\n",[5228,15318,15319],{"class":5230,"line":5253},[5228,15320,5306],{"emptyLinePlaceholder":5305},[5228,15322,15323,15325,15327,15329,15331,15333],{"class":5230,"line":5272},[5228,15324,6326],{"class":5259},[5228,15326,5112],{"class":5249},[5228,15328,5864],{"class":5427},[5228,15330,5431],{"class":5249},[5228,15332,7835],{"class":5703},[5228,15334,5500],{"class":5249},[5228,15336,15337],{"class":5230,"line":5287},[5228,15338,15339],{"class":5234},"\u002F\u002F Вівід:\n",[5228,15341,15342],{"class":5230,"line":5302},[5228,15343,15344],{"class":5234},"\u002F\u002F Слухач B (додано першим)\n",[5228,15346,15347],{"class":5230,"line":5309},[5228,15348,15349],{"class":5234},"\u002F\u002F Слухач A\n",[5190,15351,15352],{},"Проте покладатися на порядок викликів є антипаттерном — слухачі повинні бути незалежними.",[5185,15354,15356],{"id":15355},"практичний-приклад-система-повідомлень-у-реальному-часі","Практичний приклад: система повідомлень у реальному часі",[5190,15358,15359],{},"Розглянемо реалізацію простої системи обміну повідомленнями на основі EventEmitter:",[5219,15361,15363],{"className":5221,"code":15362,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\ninterface Message {\n  id: string;\n  from: string;\n  to: string;\n  content: string;\n  timestamp: Date;\n}\n\ninterface MessageEvents {\n  'message:sent': (message: Message) => void;\n  'message:delivered': (messageId: string, to: string) => void;\n  'message:read': (messageId: string, by: string) => void;\n  'user:online': (userId: string) => void;\n  'user:offline': (userId: string) => void;\n}\n\nclass MessageBus extends EventEmitter {\n  private onlineUsers = new Set\u003Cstring>();\n\n  sendMessage(from: string, to: string, content: string): Message {\n    const message: Message = {\n      id: `msg-${Date.now()}-${Math.random().toString(36).slice(2)}`,\n      from,\n      to,\n      content,\n      timestamp: new Date()\n    };\n\n    this.emit('message:sent', message);\n\n    \u002F\u002F Якщо отримувач онлайн, генеруємо подію доставки\n    if (this.onlineUsers.has(to)) {\n      setTimeout(() => {\n        this.emit('message:delivered', message.id, to);\n      }, 100); \u002F\u002F Імітація затримки доставки\n    }\n\n    return message;\n  }\n\n  markAsRead(messageId: string, userId: string): void {\n    this.emit('message:read', messageId, userId);\n  }\n\n  setUserOnline(userId: string): void {\n    if (!this.onlineUsers.has(userId)) {\n      this.onlineUsers.add(userId);\n      this.emit('user:online', userId);\n    }\n  }\n\n  setUserOffline(userId: string): void {\n    if (this.onlineUsers.has(userId)) {\n      this.onlineUsers.delete(userId);\n      this.emit('user:offline', userId);\n    }\n  }\n\n  isUserOnline(userId: string): boolean {\n    return this.onlineUsers.has(userId);\n  }\n}\n\n\u002F\u002F Використання системи повідомлень\nconst messageBus = new MessageBus();\n\n\u002F\u002F Модуль логування: записує всі повідомлення\nmessageBus.on('message:sent', (message) => {\n  console.log(`[LOG] Повідомлення надіслано: ${message.from} → ${message.to}`);\n});\n\n\u002F\u002F Модуль сповіщень: надсилає push-notification\nmessageBus.on('message:delivered', (messageId, to) => {\n  console.log(`[PUSH] Повідомлення ${messageId} доставлено користувачу ${to}`);\n});\n\n\u002F\u002F Модуль аналітики: збирає статистику\nlet messageCount = 0;\nmessageBus.on('message:sent', () => {\n  messageCount++;\n  console.log(`[ANALYTICS] Загальна кількість повідомлень: ${messageCount}`);\n});\n\n\u002F\u002F Модуль індикатора прочитання\nmessageBus.on('message:read', (messageId, by) => {\n  console.log(`[READ RECEIPT] Користувач ${by} прочитав повідомлення ${messageId}`);\n});\n\n\u002F\u002F Модуль статусу користувачів\nmessageBus.on('user:online', (userId) => {\n  console.log(`[STATUS] Користувач ${userId} у мережі`);\n});\n\nmessageBus.on('user:offline', (userId) => {\n  console.log(`[STATUS] Користувач ${userId} не в мережі`);\n});\n\n\u002F\u002F Сценарій використання\nmessageBus.setUserOnline('alice');\nmessageBus.setUserOnline('bob');\n\nconst msg1 = messageBus.sendMessage('alice', 'bob', 'Привіт, Боб!');\nconst msg2 = messageBus.sendMessage('bob', 'alice', 'Привіт, Аліса! Як справи?');\n\nsetTimeout(() => {\n  messageBus.markAsRead(msg1.id, 'bob');\n  messageBus.markAsRead(msg2.id, 'alice');\n  \n  messageBus.setUserOffline('bob');\n}, 2000);\n",[5109,15364,15365,15381,15385,15394,15405,15416,15427,15438,15448,15452,15456,15465,15487,15518,15548,15569,15590,15594,15598,15611,15631,15635,15670,15683,15742,15749,15756,15763,15774,15778,15782,15801,15805,15810,15835,15846,15873,15886,15890,15894,15902,15906,15910,15937,15960,15964,15968,15987,16010,16029,16048,16052,16056,16060,16079,16101,16120,16139,16143,16147,16151,16170,16190,16194,16198,16202,16207,16222,16226,16231,16254,16294,16298,16302,16307,16333,16365,16369,16373,16378,16391,16409,16416,16440,16444,16448,16453,16479,16511,16515,16519,16524,16546,16570,16574,16578,16600,16623,16627,16631,16636,16652,16667,16671,16702,16732,16737,16749,16775,16799,16804,16820],{"__ignoreMap":5224},[5228,15366,15367,15369,15371,15373,15375,15377,15379],{"class":5230,"line":5231},[5228,15368,5689],{"class":5480},[5228,15370,5692],{"class":5249},[5228,15372,5111],{"class":5259},[5228,15374,5697],{"class":5249},[5228,15376,5700],{"class":5480},[5228,15378,5704],{"class":5703},[5228,15380,5269],{"class":5249},[5228,15382,15383],{"class":5230,"line":5238},[5228,15384,5306],{"emptyLinePlaceholder":5305},[5228,15386,15387,15389,15392],{"class":5230,"line":5253},[5228,15388,5715],{"class":5241},[5228,15390,15391],{"class":5245}," Message",[5228,15393,5250],{"class":5249},[5228,15395,15396,15399,15401,15403],{"class":5230,"line":5272},[5228,15397,15398],{"class":5259},"  id",[5228,15400,5263],{"class":5249},[5228,15402,5439],{"class":5245},[5228,15404,5269],{"class":5249},[5228,15406,15407,15410,15412,15414],{"class":5230,"line":5287},[5228,15408,15409],{"class":5259},"  from",[5228,15411,5263],{"class":5249},[5228,15413,5439],{"class":5245},[5228,15415,5269],{"class":5249},[5228,15417,15418,15421,15423,15425],{"class":5230,"line":5302},[5228,15419,15420],{"class":5259},"  to",[5228,15422,5263],{"class":5249},[5228,15424,5439],{"class":5245},[5228,15426,5269],{"class":5249},[5228,15428,15429,15432,15434,15436],{"class":5230,"line":5309},[5228,15430,15431],{"class":5259},"  content",[5228,15433,5263],{"class":5249},[5228,15435,5439],{"class":5245},[5228,15437,5269],{"class":5249},[5228,15439,15440,15442,15444,15446],{"class":5230,"line":5318},[5228,15441,8191],{"class":5259},[5228,15443,5263],{"class":5249},[5228,15445,7247],{"class":5245},[5228,15447,5269],{"class":5249},[5228,15449,15450],{"class":5230,"line":5331},[5228,15451,5610],{"class":5249},[5228,15453,15454],{"class":5230,"line":5343},[5228,15455,5306],{"emptyLinePlaceholder":5305},[5228,15457,15458,15460,15463],{"class":5230,"line":5354},[5228,15459,5715],{"class":5241},[5228,15461,15462],{"class":5245}," MessageEvents",[5228,15464,5250],{"class":5249},[5228,15466,15467,15470,15472,15474,15476,15479,15481,15483,15485],{"class":5230,"line":5360},[5228,15468,15469],{"class":5703},"  'message:sent'",[5228,15471,10514],{"class":5249},[5228,15473,6341],{"class":5259},[5228,15475,5263],{"class":5249},[5228,15477,15478],{"class":5245},"Message",[5228,15480,6003],{"class":5249},[5228,15482,6006],{"class":5241},[5228,15484,10545],{"class":5245},[5228,15486,5269],{"class":5249},[5228,15488,15489,15492,15494,15497,15499,15501,15503,15506,15508,15510,15512,15514,15516],{"class":5230,"line":5378},[5228,15490,15491],{"class":5703},"  'message:delivered'",[5228,15493,10514],{"class":5249},[5228,15495,15496],{"class":5259},"messageId",[5228,15498,5263],{"class":5249},[5228,15500,5439],{"class":5245},[5228,15502,5442],{"class":5249},[5228,15504,15505],{"class":5259},"to",[5228,15507,5263],{"class":5249},[5228,15509,5439],{"class":5245},[5228,15511,6003],{"class":5249},[5228,15513,6006],{"class":5241},[5228,15515,10545],{"class":5245},[5228,15517,5269],{"class":5249},[5228,15519,15520,15523,15525,15527,15529,15531,15533,15536,15538,15540,15542,15544,15546],{"class":5230,"line":5394},[5228,15521,15522],{"class":5703},"  'message:read'",[5228,15524,10514],{"class":5249},[5228,15526,15496],{"class":5259},[5228,15528,5263],{"class":5249},[5228,15530,5439],{"class":5245},[5228,15532,5442],{"class":5249},[5228,15534,15535],{"class":5259},"by",[5228,15537,5263],{"class":5249},[5228,15539,5439],{"class":5245},[5228,15541,6003],{"class":5249},[5228,15543,6006],{"class":5241},[5228,15545,10545],{"class":5245},[5228,15547,5269],{"class":5249},[5228,15549,15550,15553,15555,15557,15559,15561,15563,15565,15567],{"class":5230,"line":5410},[5228,15551,15552],{"class":5703},"  'user:online'",[5228,15554,10514],{"class":5249},[5228,15556,5434],{"class":5259},[5228,15558,5263],{"class":5249},[5228,15560,5439],{"class":5245},[5228,15562,6003],{"class":5249},[5228,15564,6006],{"class":5241},[5228,15566,10545],{"class":5245},[5228,15568,5269],{"class":5249},[5228,15570,15571,15574,15576,15578,15580,15582,15584,15586,15588],{"class":5230,"line":5416},[5228,15572,15573],{"class":5703},"  'user:offline'",[5228,15575,10514],{"class":5249},[5228,15577,5434],{"class":5259},[5228,15579,5263],{"class":5249},[5228,15581,5439],{"class":5245},[5228,15583,6003],{"class":5249},[5228,15585,6006],{"class":5241},[5228,15587,10545],{"class":5245},[5228,15589,5269],{"class":5249},[5228,15591,15592],{"class":5230,"line":5421},[5228,15593,5610],{"class":5249},[5228,15595,15596],{"class":5230,"line":5468},[5228,15597,5306],{"emptyLinePlaceholder":5305},[5228,15599,15600,15602,15605,15607,15609],{"class":5230,"line":5503},[5228,15601,5242],{"class":5241},[5228,15603,15604],{"class":5245}," MessageBus",[5228,15606,5783],{"class":5241},[5228,15608,5786],{"class":5245},[5228,15610,5250],{"class":5249},[5228,15612,15613,15615,15618,15620,15622,15625,15627,15629],{"class":5230,"line":5509},[5228,15614,5256],{"class":5241},[5228,15616,15617],{"class":5259}," onlineUsers",[5228,15619,5371],{"class":5249},[5228,15621,5960],{"class":5241},[5228,15623,15624],{"class":5427}," Set",[5228,15626,5459],{"class":5249},[5228,15628,5439],{"class":5245},[5228,15630,11127],{"class":5249},[5228,15632,15633],{"class":5230,"line":5515},[5228,15634,5306],{"emptyLinePlaceholder":5305},[5228,15636,15637,15640,15642,15644,15646,15648,15650,15652,15654,15656,15658,15660,15662,15664,15666,15668],{"class":5230,"line":5543},[5228,15638,15639],{"class":5427},"  sendMessage",[5228,15641,5431],{"class":5249},[5228,15643,5700],{"class":5259},[5228,15645,5263],{"class":5249},[5228,15647,5439],{"class":5245},[5228,15649,5442],{"class":5249},[5228,15651,15505],{"class":5259},[5228,15653,5263],{"class":5249},[5228,15655,5439],{"class":5245},[5228,15657,5442],{"class":5249},[5228,15659,8827],{"class":5259},[5228,15661,5263],{"class":5249},[5228,15663,5439],{"class":5245},[5228,15665,6519],{"class":5249},[5228,15667,15478],{"class":5245},[5228,15669,5250],{"class":5249},[5228,15671,15672,15674,15677,15679,15681],{"class":5230,"line":5565},[5228,15673,5471],{"class":5241},[5228,15675,15676],{"class":5474}," message",[5228,15678,5263],{"class":5249},[5228,15680,15478],{"class":5245},[5228,15682,8320],{"class":5249},[5228,15684,15685,15688,15691,15693,15695,15697,15699,15701,15703,15706,15708,15710,15712,15714,15716,15719,15721,15724,15726,15729,15731,15733,15736,15738,15740],{"class":5230,"line":5587},[5228,15686,15687],{"class":5259},"      id:",[5228,15689,15690],{"class":5703}," `msg-",[5228,15692,6540],{"class":5241},[5228,15694,7247],{"class":5259},[5228,15696,5112],{"class":7320},[5228,15698,8756],{"class":5427},[5228,15700,7326],{"class":7320},[5228,15702,6545],{"class":5241},[5228,15704,15705],{"class":5703},"-",[5228,15707,6540],{"class":5241},[5228,15709,10268],{"class":5259},[5228,15711,5112],{"class":7320},[5228,15713,10273],{"class":5427},[5228,15715,9517],{"class":7320},[5228,15717,15718],{"class":5427},"toString",[5228,15720,5431],{"class":7320},[5228,15722,15723],{"class":7154},"36",[5228,15725,13320],{"class":7320},[5228,15727,15728],{"class":5427},"slice",[5228,15730,5431],{"class":7320},[5228,15732,8802],{"class":7154},[5228,15734,15735],{"class":7320},")",[5228,15737,6545],{"class":5241},[5228,15739,6548],{"class":5703},[5228,15741,5328],{"class":5249},[5228,15743,15744,15747],{"class":5230,"line":5592},[5228,15745,15746],{"class":5259},"      from",[5228,15748,5328],{"class":5249},[5228,15750,15751,15754],{"class":5230,"line":5602},[5228,15752,15753],{"class":5259},"      to",[5228,15755,5328],{"class":5249},[5228,15757,15758,15761],{"class":5230,"line":5607},[5228,15759,15760],{"class":5259},"      content",[5228,15762,5328],{"class":5249},[5228,15764,15765,15767,15769,15771],{"class":5230,"line":5949},[5228,15766,8339],{"class":5259},[5228,15768,8342],{"class":5241},[5228,15770,7369],{"class":5427},[5228,15772,15773],{"class":5249},"()\n",[5228,15775,15776],{"class":5230,"line":5968},[5228,15777,8357],{"class":5249},[5228,15779,15780],{"class":5230,"line":5973},[5228,15781,5306],{"emptyLinePlaceholder":5305},[5228,15783,15784,15786,15788,15790,15792,15795,15797,15799],{"class":5230,"line":6011},[5228,15785,5363],{"class":5241},[5228,15787,5112],{"class":5249},[5228,15789,5864],{"class":5427},[5228,15791,5431],{"class":5249},[5228,15793,15794],{"class":5703},"'message:sent'",[5228,15796,5442],{"class":5249},[5228,15798,6341],{"class":5259},[5228,15800,5500],{"class":5249},[5228,15802,15803],{"class":5230,"line":6042},[5228,15804,5306],{"emptyLinePlaceholder":5305},[5228,15806,15807],{"class":5230,"line":6048},[5228,15808,15809],{"class":5234},"    \u002F\u002F Якщо отримувач онлайн, генеруємо подію доставки\n",[5228,15811,15812,15814,15816,15818,15820,15823,15825,15828,15830,15832],{"class":5230,"line":6053},[5228,15813,8450],{"class":5480},[5228,15815,5102],{"class":5249},[5228,15817,8788],{"class":5241},[5228,15819,5112],{"class":5249},[5228,15821,15822],{"class":5259},"onlineUsers",[5228,15824,5112],{"class":5249},[5228,15826,15827],{"class":5427},"has",[5228,15829,5431],{"class":5249},[5228,15831,15505],{"class":5259},[5228,15833,15834],{"class":5249},")) {\n",[5228,15836,15837,15840,15842,15844],{"class":5230,"line":6084},[5228,15838,15839],{"class":5427},"      setTimeout",[5228,15841,10143],{"class":5249},[5228,15843,6006],{"class":5241},[5228,15845,5250],{"class":5249},[5228,15847,15848,15850,15852,15854,15856,15859,15861,15863,15865,15867,15869,15871],{"class":5230,"line":6105},[5228,15849,10196],{"class":5241},[5228,15851,5112],{"class":5249},[5228,15853,5864],{"class":5427},[5228,15855,5431],{"class":5249},[5228,15857,15858],{"class":5703},"'message:delivered'",[5228,15860,5442],{"class":5249},[5228,15862,6341],{"class":5259},[5228,15864,5112],{"class":5249},[5228,15866,5884],{"class":5259},[5228,15868,5442],{"class":5249},[5228,15870,15505],{"class":5259},[5228,15872,5500],{"class":5249},[5228,15874,15875,15878,15881,15883],{"class":5230,"line":6110},[5228,15876,15877],{"class":5249},"      }, ",[5228,15879,15880],{"class":7154},"100",[5228,15882,6602],{"class":5249},[5228,15884,15885],{"class":5234},"\u002F\u002F Імітація затримки доставки\n",[5228,15887,15888],{"class":5230,"line":6115},[5228,15889,8487],{"class":5249},[5228,15891,15892],{"class":5230,"line":6146},[5228,15893,5306],{"emptyLinePlaceholder":5305},[5228,15895,15896,15898,15900],{"class":5230,"line":6163},[5228,15897,5595],{"class":5480},[5228,15899,15676],{"class":5259},[5228,15901,5269],{"class":5249},[5228,15903,15904],{"class":5230,"line":6168},[5228,15905,5413],{"class":5249},[5228,15907,15908],{"class":5230,"line":6173},[5228,15909,5306],{"emptyLinePlaceholder":5305},[5228,15911,15912,15915,15917,15919,15921,15923,15925,15927,15929,15931,15933,15935],{"class":5230,"line":6179},[5228,15913,15914],{"class":5427},"  markAsRead",[5228,15916,5431],{"class":5249},[5228,15918,15496],{"class":5259},[5228,15920,5263],{"class":5249},[5228,15922,5439],{"class":5245},[5228,15924,5442],{"class":5249},[5228,15926,5434],{"class":5259},[5228,15928,5263],{"class":5249},[5228,15930,5439],{"class":5245},[5228,15932,6519],{"class":5249},[5228,15934,6522],{"class":5245},[5228,15936,5250],{"class":5249},[5228,15938,15939,15941,15943,15945,15947,15950,15952,15954,15956,15958],{"class":5230,"line":6210},[5228,15940,5363],{"class":5241},[5228,15942,5112],{"class":5249},[5228,15944,5864],{"class":5427},[5228,15946,5431],{"class":5249},[5228,15948,15949],{"class":5703},"'message:read'",[5228,15951,5442],{"class":5249},[5228,15953,15496],{"class":5259},[5228,15955,5442],{"class":5249},[5228,15957,5434],{"class":5259},[5228,15959,5500],{"class":5249},[5228,15961,15962],{"class":5230,"line":6242},[5228,15963,5413],{"class":5249},[5228,15965,15966],{"class":5230,"line":8624},[5228,15967,5306],{"emptyLinePlaceholder":5305},[5228,15969,15970,15973,15975,15977,15979,15981,15983,15985],{"class":5230,"line":8629},[5228,15971,15972],{"class":5427},"  setUserOnline",[5228,15974,5431],{"class":5249},[5228,15976,5434],{"class":5259},[5228,15978,5263],{"class":5249},[5228,15980,5439],{"class":5245},[5228,15982,6519],{"class":5249},[5228,15984,6522],{"class":5245},[5228,15986,5250],{"class":5249},[5228,15988,15989,15991,15994,15996,15998,16000,16002,16004,16006,16008],{"class":5230,"line":8665},[5228,15990,8450],{"class":5480},[5228,15992,15993],{"class":5249}," (!",[5228,15995,8788],{"class":5241},[5228,15997,5112],{"class":5249},[5228,15999,15822],{"class":5259},[5228,16001,5112],{"class":5249},[5228,16003,15827],{"class":5427},[5228,16005,5431],{"class":5249},[5228,16007,5434],{"class":5259},[5228,16009,15834],{"class":5249},[5228,16011,16012,16014,16016,16018,16020,16023,16025,16027],{"class":5230,"line":8688},[5228,16013,8467],{"class":5241},[5228,16015,5112],{"class":5249},[5228,16017,15822],{"class":5259},[5228,16019,5112],{"class":5249},[5228,16021,16022],{"class":5427},"add",[5228,16024,5431],{"class":5249},[5228,16026,5434],{"class":5259},[5228,16028,5500],{"class":5249},[5228,16030,16031,16033,16035,16037,16039,16042,16044,16046],{"class":5230,"line":8693},[5228,16032,8467],{"class":5241},[5228,16034,5112],{"class":5249},[5228,16036,5864],{"class":5427},[5228,16038,5431],{"class":5249},[5228,16040,16041],{"class":5703},"'user:online'",[5228,16043,5442],{"class":5249},[5228,16045,5434],{"class":5259},[5228,16047,5500],{"class":5249},[5228,16049,16050],{"class":5230,"line":8698},[5228,16051,8487],{"class":5249},[5228,16053,16054],{"class":5230,"line":8717},[5228,16055,5413],{"class":5249},[5228,16057,16058],{"class":5230,"line":8768},[5228,16059,5306],{"emptyLinePlaceholder":5305},[5228,16061,16062,16065,16067,16069,16071,16073,16075,16077],{"class":5230,"line":8807},[5228,16063,16064],{"class":5427},"  setUserOffline",[5228,16066,5431],{"class":5249},[5228,16068,5434],{"class":5259},[5228,16070,5263],{"class":5249},[5228,16072,5439],{"class":5245},[5228,16074,6519],{"class":5249},[5228,16076,6522],{"class":5245},[5228,16078,5250],{"class":5249},[5228,16080,16081,16083,16085,16087,16089,16091,16093,16095,16097,16099],{"class":5230,"line":8812},[5228,16082,8450],{"class":5480},[5228,16084,5102],{"class":5249},[5228,16086,8788],{"class":5241},[5228,16088,5112],{"class":5249},[5228,16090,15822],{"class":5259},[5228,16092,5112],{"class":5249},[5228,16094,15827],{"class":5427},[5228,16096,5431],{"class":5249},[5228,16098,5434],{"class":5259},[5228,16100,15834],{"class":5249},[5228,16102,16103,16105,16107,16109,16111,16114,16116,16118],{"class":5230,"line":8837},[5228,16104,8467],{"class":5241},[5228,16106,5112],{"class":5249},[5228,16108,15822],{"class":5259},[5228,16110,5112],{"class":5249},[5228,16112,16113],{"class":5427},"delete",[5228,16115,5431],{"class":5249},[5228,16117,5434],{"class":5259},[5228,16119,5500],{"class":5249},[5228,16121,16122,16124,16126,16128,16130,16133,16135,16137],{"class":5230,"line":8842},[5228,16123,8467],{"class":5241},[5228,16125,5112],{"class":5249},[5228,16127,5864],{"class":5427},[5228,16129,5431],{"class":5249},[5228,16131,16132],{"class":5703},"'user:offline'",[5228,16134,5442],{"class":5249},[5228,16136,5434],{"class":5259},[5228,16138,5500],{"class":5249},[5228,16140,16141],{"class":5230,"line":8880},[5228,16142,8487],{"class":5249},[5228,16144,16145],{"class":5230,"line":8892},[5228,16146,5413],{"class":5249},[5228,16148,16149],{"class":5230,"line":8897},[5228,16150,5306],{"emptyLinePlaceholder":5305},[5228,16152,16153,16156,16158,16160,16162,16164,16166,16168],{"class":5230,"line":8902},[5228,16154,16155],{"class":5427},"  isUserOnline",[5228,16157,5431],{"class":5249},[5228,16159,5434],{"class":5259},[5228,16161,5263],{"class":5249},[5228,16163,5439],{"class":5245},[5228,16165,6519],{"class":5249},[5228,16167,10961],{"class":5245},[5228,16169,5250],{"class":5249},[5228,16171,16172,16174,16176,16178,16180,16182,16184,16186,16188],{"class":5230,"line":8938},[5228,16173,5595],{"class":5480},[5228,16175,5484],{"class":5241},[5228,16177,5112],{"class":5249},[5228,16179,15822],{"class":5259},[5228,16181,5112],{"class":5249},[5228,16183,15827],{"class":5427},[5228,16185,5431],{"class":5249},[5228,16187,5434],{"class":5259},[5228,16189,5500],{"class":5249},[5228,16191,16192],{"class":5230,"line":8961},[5228,16193,5413],{"class":5249},[5228,16195,16196],{"class":5230,"line":8972},[5228,16197,5610],{"class":5249},[5228,16199,16200],{"class":5230,"line":8982},[5228,16201,5306],{"emptyLinePlaceholder":5305},[5228,16203,16204],{"class":5230,"line":8991},[5228,16205,16206],{"class":5234},"\u002F\u002F Використання системи повідомлень\n",[5228,16208,16209,16211,16214,16216,16218,16220],{"class":5230,"line":8996},[5228,16210,5952],{"class":5241},[5228,16212,16213],{"class":5474}," messageBus",[5228,16215,5371],{"class":5249},[5228,16217,5960],{"class":5241},[5228,16219,15604],{"class":5427},[5228,16221,5965],{"class":5249},[5228,16223,16224],{"class":5230,"line":9001},[5228,16225,5306],{"emptyLinePlaceholder":5305},[5228,16227,16228],{"class":5230,"line":9025},[5228,16229,16230],{"class":5234},"\u002F\u002F Модуль логування: записує всі повідомлення\n",[5228,16232,16233,16236,16238,16240,16242,16244,16246,16248,16250,16252],{"class":5230,"line":9043},[5228,16234,16235],{"class":5259},"messageBus",[5228,16237,5112],{"class":5249},[5228,16239,5981],{"class":5427},[5228,16241,5431],{"class":5249},[5228,16243,15794],{"class":5703},[5228,16245,6338],{"class":5249},[5228,16247,6341],{"class":5259},[5228,16249,6003],{"class":5249},[5228,16251,6006],{"class":5241},[5228,16253,5250],{"class":5249},[5228,16255,16256,16258,16260,16262,16264,16267,16269,16271,16273,16275,16277,16280,16282,16284,16286,16288,16290,16292],{"class":5230,"line":9048},[5228,16257,6356],{"class":5259},[5228,16259,5112],{"class":5249},[5228,16261,6361],{"class":5427},[5228,16263,5431],{"class":5249},[5228,16265,16266],{"class":5703},"`[LOG] Повідомлення надіслано: ",[5228,16268,6540],{"class":5241},[5228,16270,6341],{"class":5259},[5228,16272,5112],{"class":7320},[5228,16274,5700],{"class":5259},[5228,16276,6545],{"class":5241},[5228,16278,16279],{"class":5703}," → ",[5228,16281,6540],{"class":5241},[5228,16283,6341],{"class":5259},[5228,16285,5112],{"class":7320},[5228,16287,15505],{"class":5259},[5228,16289,6545],{"class":5241},[5228,16291,6548],{"class":5703},[5228,16293,5500],{"class":5249},[5228,16295,16296],{"class":5230,"line":9053},[5228,16297,6045],{"class":5249},[5228,16299,16300],{"class":5230,"line":9060},[5228,16301,5306],{"emptyLinePlaceholder":5305},[5228,16303,16304],{"class":5230,"line":9077},[5228,16305,16306],{"class":5234},"\u002F\u002F Модуль сповіщень: надсилає push-notification\n",[5228,16308,16309,16311,16313,16315,16317,16319,16321,16323,16325,16327,16329,16331],{"class":5230,"line":9083},[5228,16310,16235],{"class":5259},[5228,16312,5112],{"class":5249},[5228,16314,5981],{"class":5427},[5228,16316,5431],{"class":5249},[5228,16318,15858],{"class":5703},[5228,16320,6338],{"class":5249},[5228,16322,15496],{"class":5259},[5228,16324,5442],{"class":5249},[5228,16326,15505],{"class":5259},[5228,16328,6003],{"class":5249},[5228,16330,6006],{"class":5241},[5228,16332,5250],{"class":5249},[5228,16334,16335,16337,16339,16341,16343,16346,16348,16350,16352,16355,16357,16359,16361,16363],{"class":5230,"line":9088},[5228,16336,6356],{"class":5259},[5228,16338,5112],{"class":5249},[5228,16340,6361],{"class":5427},[5228,16342,5431],{"class":5249},[5228,16344,16345],{"class":5703},"`[PUSH] Повідомлення ",[5228,16347,6540],{"class":5241},[5228,16349,15496],{"class":5259},[5228,16351,6545],{"class":5241},[5228,16353,16354],{"class":5703}," доставлено користувачу ",[5228,16356,6540],{"class":5241},[5228,16358,15505],{"class":5259},[5228,16360,6545],{"class":5241},[5228,16362,6548],{"class":5703},[5228,16364,5500],{"class":5249},[5228,16366,16367],{"class":5230,"line":9093},[5228,16368,6045],{"class":5249},[5228,16370,16371],{"class":5230,"line":9098},[5228,16372,5306],{"emptyLinePlaceholder":5305},[5228,16374,16375],{"class":5230,"line":9103},[5228,16376,16377],{"class":5234},"\u002F\u002F Модуль аналітики: збирає статистику\n",[5228,16379,16380,16382,16385,16387,16389],{"class":5230,"line":9109},[5228,16381,14069],{"class":5241},[5228,16383,16384],{"class":5259}," messageCount",[5228,16386,5371],{"class":5249},[5228,16388,9911],{"class":7154},[5228,16390,5269],{"class":5249},[5228,16392,16393,16395,16397,16399,16401,16403,16405,16407],{"class":5230,"line":9125},[5228,16394,16235],{"class":5259},[5228,16396,5112],{"class":5249},[5228,16398,5981],{"class":5427},[5228,16400,5431],{"class":5249},[5228,16402,15794],{"class":5703},[5228,16404,6885],{"class":5249},[5228,16406,6006],{"class":5241},[5228,16408,5250],{"class":5249},[5228,16410,16411,16414],{"class":5230,"line":9130},[5228,16412,16413],{"class":5259},"  messageCount",[5228,16415,10033],{"class":5249},[5228,16417,16418,16420,16422,16424,16426,16429,16431,16434,16436,16438],{"class":5230,"line":9136},[5228,16419,6356],{"class":5259},[5228,16421,5112],{"class":5249},[5228,16423,6361],{"class":5427},[5228,16425,5431],{"class":5249},[5228,16427,16428],{"class":5703},"`[ANALYTICS] Загальна кількість повідомлень: ",[5228,16430,6540],{"class":5241},[5228,16432,16433],{"class":5259},"messageCount",[5228,16435,6545],{"class":5241},[5228,16437,6548],{"class":5703},[5228,16439,5500],{"class":5249},[5228,16441,16442],{"class":5230,"line":9164},[5228,16443,6045],{"class":5249},[5228,16445,16446],{"class":5230,"line":9187},[5228,16447,5306],{"emptyLinePlaceholder":5305},[5228,16449,16450],{"class":5230,"line":9243},[5228,16451,16452],{"class":5234},"\u002F\u002F Модуль індикатора прочитання\n",[5228,16454,16455,16457,16459,16461,16463,16465,16467,16469,16471,16473,16475,16477],{"class":5230,"line":9248},[5228,16456,16235],{"class":5259},[5228,16458,5112],{"class":5249},[5228,16460,5981],{"class":5427},[5228,16462,5431],{"class":5249},[5228,16464,15949],{"class":5703},[5228,16466,6338],{"class":5249},[5228,16468,15496],{"class":5259},[5228,16470,5442],{"class":5249},[5228,16472,15535],{"class":5259},[5228,16474,6003],{"class":5249},[5228,16476,6006],{"class":5241},[5228,16478,5250],{"class":5249},[5228,16480,16481,16483,16485,16487,16489,16492,16494,16496,16498,16501,16503,16505,16507,16509],{"class":5230,"line":9253},[5228,16482,6356],{"class":5259},[5228,16484,5112],{"class":5249},[5228,16486,6361],{"class":5427},[5228,16488,5431],{"class":5249},[5228,16490,16491],{"class":5703},"`[READ RECEIPT] Користувач ",[5228,16493,6540],{"class":5241},[5228,16495,15535],{"class":5259},[5228,16497,6545],{"class":5241},[5228,16499,16500],{"class":5703}," прочитав повідомлення ",[5228,16502,6540],{"class":5241},[5228,16504,15496],{"class":5259},[5228,16506,6545],{"class":5241},[5228,16508,6548],{"class":5703},[5228,16510,5500],{"class":5249},[5228,16512,16513],{"class":5230,"line":9259},[5228,16514,6045],{"class":5249},[5228,16516,16517],{"class":5230,"line":9290},[5228,16518,5306],{"emptyLinePlaceholder":5305},[5228,16520,16521],{"class":5230,"line":9314},[5228,16522,16523],{"class":5234},"\u002F\u002F Модуль статусу користувачів\n",[5228,16525,16526,16528,16530,16532,16534,16536,16538,16540,16542,16544],{"class":5230,"line":9320},[5228,16527,16235],{"class":5259},[5228,16529,5112],{"class":5249},[5228,16531,5981],{"class":5427},[5228,16533,5431],{"class":5249},[5228,16535,16041],{"class":5703},[5228,16537,6338],{"class":5249},[5228,16539,5434],{"class":5259},[5228,16541,6003],{"class":5249},[5228,16543,6006],{"class":5241},[5228,16545,5250],{"class":5249},[5228,16547,16548,16550,16552,16554,16556,16559,16561,16563,16565,16568],{"class":5230,"line":9325},[5228,16549,6356],{"class":5259},[5228,16551,5112],{"class":5249},[5228,16553,6361],{"class":5427},[5228,16555,5431],{"class":5249},[5228,16557,16558],{"class":5703},"`[STATUS] Користувач ",[5228,16560,6540],{"class":5241},[5228,16562,5434],{"class":5259},[5228,16564,6545],{"class":5241},[5228,16566,16567],{"class":5703}," у мережі`",[5228,16569,5500],{"class":5249},[5228,16571,16572],{"class":5230,"line":9330},[5228,16573,6045],{"class":5249},[5228,16575,16576],{"class":5230,"line":9336},[5228,16577,5306],{"emptyLinePlaceholder":5305},[5228,16579,16580,16582,16584,16586,16588,16590,16592,16594,16596,16598],{"class":5230,"line":9366},[5228,16581,16235],{"class":5259},[5228,16583,5112],{"class":5249},[5228,16585,5981],{"class":5427},[5228,16587,5431],{"class":5249},[5228,16589,16132],{"class":5703},[5228,16591,6338],{"class":5249},[5228,16593,5434],{"class":5259},[5228,16595,6003],{"class":5249},[5228,16597,6006],{"class":5241},[5228,16599,5250],{"class":5249},[5228,16601,16602,16604,16606,16608,16610,16612,16614,16616,16618,16621],{"class":5230,"line":9399},[5228,16603,6356],{"class":5259},[5228,16605,5112],{"class":5249},[5228,16607,6361],{"class":5427},[5228,16609,5431],{"class":5249},[5228,16611,16558],{"class":5703},[5228,16613,6540],{"class":5241},[5228,16615,5434],{"class":5259},[5228,16617,6545],{"class":5241},[5228,16619,16620],{"class":5703}," не в мережі`",[5228,16622,5500],{"class":5249},[5228,16624,16625],{"class":5230,"line":9404},[5228,16626,6045],{"class":5249},[5228,16628,16629],{"class":5230,"line":9409},[5228,16630,5306],{"emptyLinePlaceholder":5305},[5228,16632,16633],{"class":5230,"line":9415},[5228,16634,16635],{"class":5234},"\u002F\u002F Сценарій використання\n",[5228,16637,16638,16640,16642,16645,16647,16650],{"class":5230,"line":9440},[5228,16639,16235],{"class":5259},[5228,16641,5112],{"class":5249},[5228,16643,16644],{"class":5427},"setUserOnline",[5228,16646,5431],{"class":5249},[5228,16648,16649],{"class":5703},"'alice'",[5228,16651,5500],{"class":5249},[5228,16653,16654,16656,16658,16660,16662,16665],{"class":5230,"line":9465},[5228,16655,16235],{"class":5259},[5228,16657,5112],{"class":5249},[5228,16659,16644],{"class":5427},[5228,16661,5431],{"class":5249},[5228,16663,16664],{"class":5703},"'bob'",[5228,16666,5500],{"class":5249},[5228,16668,16669],{"class":5230,"line":9496},[5228,16670,5306],{"emptyLinePlaceholder":5305},[5228,16672,16673,16675,16678,16680,16682,16684,16687,16689,16691,16693,16695,16697,16700],{"class":5230,"line":9501},[5228,16674,5952],{"class":5241},[5228,16676,16677],{"class":5474}," msg1",[5228,16679,5371],{"class":5249},[5228,16681,16235],{"class":5259},[5228,16683,5112],{"class":5249},[5228,16685,16686],{"class":5427},"sendMessage",[5228,16688,5431],{"class":5249},[5228,16690,16649],{"class":5703},[5228,16692,5442],{"class":5249},[5228,16694,16664],{"class":5703},[5228,16696,5442],{"class":5249},[5228,16698,16699],{"class":5703},"'Привіт, Боб!'",[5228,16701,5500],{"class":5249},[5228,16703,16704,16706,16709,16711,16713,16715,16717,16719,16721,16723,16725,16727,16730],{"class":5230,"line":9507},[5228,16705,5952],{"class":5241},[5228,16707,16708],{"class":5474}," msg2",[5228,16710,5371],{"class":5249},[5228,16712,16235],{"class":5259},[5228,16714,5112],{"class":5249},[5228,16716,16686],{"class":5427},[5228,16718,5431],{"class":5249},[5228,16720,16664],{"class":5703},[5228,16722,5442],{"class":5249},[5228,16724,16649],{"class":5703},[5228,16726,5442],{"class":5249},[5228,16728,16729],{"class":5703},"'Привіт, Аліса! Як справи?'",[5228,16731,5500],{"class":5249},[5228,16733,16735],{"class":5230,"line":16734},106,[5228,16736,5306],{"emptyLinePlaceholder":5305},[5228,16738,16740,16743,16745,16747],{"class":5230,"line":16739},107,[5228,16741,16742],{"class":5427},"setTimeout",[5228,16744,10143],{"class":5249},[5228,16746,6006],{"class":5241},[5228,16748,5250],{"class":5249},[5228,16750,16752,16755,16757,16760,16762,16765,16767,16769,16771,16773],{"class":5230,"line":16751},108,[5228,16753,16754],{"class":5259},"  messageBus",[5228,16756,5112],{"class":5249},[5228,16758,16759],{"class":5427},"markAsRead",[5228,16761,5431],{"class":5249},[5228,16763,16764],{"class":5259},"msg1",[5228,16766,5112],{"class":5249},[5228,16768,5884],{"class":5259},[5228,16770,5442],{"class":5249},[5228,16772,16664],{"class":5703},[5228,16774,5500],{"class":5249},[5228,16776,16778,16780,16782,16784,16786,16789,16791,16793,16795,16797],{"class":5230,"line":16777},109,[5228,16779,16754],{"class":5259},[5228,16781,5112],{"class":5249},[5228,16783,16759],{"class":5427},[5228,16785,5431],{"class":5249},[5228,16787,16788],{"class":5259},"msg2",[5228,16790,5112],{"class":5249},[5228,16792,5884],{"class":5259},[5228,16794,5442],{"class":5249},[5228,16796,16649],{"class":5703},[5228,16798,5500],{"class":5249},[5228,16800,16802],{"class":5230,"line":16801},110,[5228,16803,9816],{"class":5249},[5228,16805,16807,16809,16811,16814,16816,16818],{"class":5230,"line":16806},111,[5228,16808,16754],{"class":5259},[5228,16810,5112],{"class":5249},[5228,16812,16813],{"class":5427},"setUserOffline",[5228,16815,5431],{"class":5249},[5228,16817,16664],{"class":5703},[5228,16819,5500],{"class":5249},[5228,16821,16823,16826,16829],{"class":5230,"line":16822},112,[5228,16824,16825],{"class":5249},"}, ",[5228,16827,16828],{"class":7154},"2000",[5228,16830,5500],{"class":5249},[5190,16832,16833],{},"Вивід програми:",[5219,16835,16838],{"className":16836,"code":16837,"language":6675},[9537],"[STATUS] Користувач alice у мережі\n[STATUS] Користувач bob у мережі\n[LOG] Повідомлення надіслано: alice → bob\n[ANALYTICS] Загальна кількість повідомлень: 1\n[PUSH] Повідомлення msg-1725358207000-abc123 доставлено користувачу bob\n[LOG] Повідомлення надіслано: bob → alice\n[ANALYTICS] Загальна кількість повідомлень: 2\n[PUSH] Повідомлення msg-1725358207050-def456 доставлено користувачу alice\n[READ RECEIPT] Користувач bob прочитав повідомлення msg-1725358207000-abc123\n[READ RECEIPT] Користувач alice прочитав повідомлення msg-1725358207050-def456\n[STATUS] Користувач bob не в мережі\n",[5109,16839,16837],{"__ignoreMap":5224},[5190,16841,16842,16843,16846],{},"Цей приклад демонструє, як різні модулі системи (логування, сповіщення, аналітика, статус) можуть підписуватися на події ",[5109,16844,16845],{},"MessageBus"," без жодних залежностей між собою.",[6801,16848,16849,16850,16853],{},"При проєктуванні подієвих систем документуйте всі події, їх аргументи та семантику. Створіть окремий файл ",[5109,16851,16852],{},"events.ts"," з описом всіх типів подій у проєкті для централізованого керування подієвою архітектурою.",[5185,16855,16857],{"id":16856},"порівняння-з-альтернативами-eventemitter-vs-pubsub-бібліотеки","Порівняння з альтернативами: EventEmitter vs Pub\u002FSub бібліотеки",[5190,16859,16860],{},"Node.js має екосистему бібліотек для роботи з подіями, що надають розширену функціональність порівняно зі стандартним EventEmitter:",[12708,16862,16863,17024,17252],{},[5219,16864,16867],{"className":5221,"code":16865,"filename":16866,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\nemitter.on('user:created', (userId) => {\n  console.log('Користувач створено:', userId);\n});\n\nemitter.emit('user:created', 'user-123');\n\n\u002F\u002F Переваги:\n\u002F\u002F - Вбудований у Node.js (без залежностей)\n\u002F\u002F - Простий API\n\u002F\u002F - Високопродуктивний\n\n\u002F\u002F Недоліки:\n\u002F\u002F - Відсутність wildcards ('user:*')\n\u002F\u002F - Немає пріоритетів слухачів\n\u002F\u002F - Немає async\u002Fawait підтримки з коробки\n","EventEmitter (стандартний)",[5109,16868,16869,16885,16889,16903,16907,16930,16949,16953,16957,16976,16980,16985,16990,16995,17000,17004,17009,17014,17019],{"__ignoreMap":5224},[5228,16870,16871,16873,16875,16877,16879,16881,16883],{"class":5230,"line":5231},[5228,16872,5689],{"class":5480},[5228,16874,5692],{"class":5249},[5228,16876,5111],{"class":5259},[5228,16878,5697],{"class":5249},[5228,16880,5700],{"class":5480},[5228,16882,5704],{"class":5703},[5228,16884,5269],{"class":5249},[5228,16886,16887],{"class":5230,"line":5238},[5228,16888,5306],{"emptyLinePlaceholder":5305},[5228,16890,16891,16893,16895,16897,16899,16901],{"class":5230,"line":5253},[5228,16892,5952],{"class":5241},[5228,16894,6304],{"class":5474},[5228,16896,5371],{"class":5249},[5228,16898,5960],{"class":5241},[5228,16900,5786],{"class":5427},[5228,16902,5965],{"class":5249},[5228,16904,16905],{"class":5230,"line":5272},[5228,16906,5306],{"emptyLinePlaceholder":5305},[5228,16908,16909,16911,16913,16915,16917,16920,16922,16924,16926,16928],{"class":5230,"line":5287},[5228,16910,6326],{"class":5259},[5228,16912,5112],{"class":5249},[5228,16914,5981],{"class":5427},[5228,16916,5431],{"class":5249},[5228,16918,16919],{"class":5703},"'user:created'",[5228,16921,6338],{"class":5249},[5228,16923,5434],{"class":5259},[5228,16925,6003],{"class":5249},[5228,16927,6006],{"class":5241},[5228,16929,5250],{"class":5249},[5228,16931,16932,16934,16936,16938,16940,16943,16945,16947],{"class":5230,"line":5302},[5228,16933,6356],{"class":5259},[5228,16935,5112],{"class":5249},[5228,16937,6361],{"class":5427},[5228,16939,5431],{"class":5249},[5228,16941,16942],{"class":5703},"'Користувач створено:'",[5228,16944,5442],{"class":5249},[5228,16946,5434],{"class":5259},[5228,16948,5500],{"class":5249},[5228,16950,16951],{"class":5230,"line":5309},[5228,16952,6045],{"class":5249},[5228,16954,16955],{"class":5230,"line":5318},[5228,16956,5306],{"emptyLinePlaceholder":5305},[5228,16958,16959,16961,16963,16965,16967,16969,16971,16974],{"class":5230,"line":5331},[5228,16960,6326],{"class":5259},[5228,16962,5112],{"class":5249},[5228,16964,5864],{"class":5427},[5228,16966,5431],{"class":5249},[5228,16968,16919],{"class":5703},[5228,16970,5442],{"class":5249},[5228,16972,16973],{"class":5703},"'user-123'",[5228,16975,5500],{"class":5249},[5228,16977,16978],{"class":5230,"line":5343},[5228,16979,5306],{"emptyLinePlaceholder":5305},[5228,16981,16982],{"class":5230,"line":5354},[5228,16983,16984],{"class":5234},"\u002F\u002F Переваги:\n",[5228,16986,16987],{"class":5230,"line":5360},[5228,16988,16989],{"class":5234},"\u002F\u002F - Вбудований у Node.js (без залежностей)\n",[5228,16991,16992],{"class":5230,"line":5378},[5228,16993,16994],{"class":5234},"\u002F\u002F - Простий API\n",[5228,16996,16997],{"class":5230,"line":5394},[5228,16998,16999],{"class":5234},"\u002F\u002F - Високопродуктивний\n",[5228,17001,17002],{"class":5230,"line":5410},[5228,17003,5306],{"emptyLinePlaceholder":5305},[5228,17005,17006],{"class":5230,"line":5416},[5228,17007,17008],{"class":5234},"\u002F\u002F Недоліки:\n",[5228,17010,17011],{"class":5230,"line":5421},[5228,17012,17013],{"class":5234},"\u002F\u002F - Відсутність wildcards ('user:*')\n",[5228,17015,17016],{"class":5230,"line":5468},[5228,17017,17018],{"class":5234},"\u002F\u002F - Немає пріоритетів слухачів\n",[5228,17020,17021],{"class":5230,"line":5503},[5228,17022,17023],{"class":5234},"\u002F\u002F - Немає async\u002Fawait підтримки з коробки\n",[5219,17025,17028],{"className":5221,"code":17026,"filename":17027,"language":5223,"meta":5224,"style":5224},"import EventEmitter2 from 'eventemitter2';\n\nconst emitter = new EventEmitter2({\n  wildcard: true,\n  delimiter: ':',\n  maxListeners: 20\n});\n\n\u002F\u002F Підписка на всі події namespace 'user'\nemitter.on('user:*', (userId) => {\n  console.log('Подія користувача:', userId);\n});\n\nemitter.emit('user:created', 'user-123');\nemitter.emit('user:updated', 'user-123');\nemitter.emit('user:deleted', 'user-123');\n\n\u002F\u002F Переваги:\n\u002F\u002F - Підтримка wildcards ('user:*', '**')\n\u002F\u002F - Простір імен для подій\n\u002F\u002F - Async слухачі з Promise\n\n\u002F\u002F Недоліки:\n\u002F\u002F - Додаткова залежність\n\u002F\u002F - Трохи повільніший за стандартний EventEmitter\n","EventEmitter2 (npm пакет)",[5109,17029,17030,17045,17049,17064,17074,17084,17092,17096,17100,17105,17128,17147,17151,17155,17173,17192,17211,17215,17219,17224,17229,17234,17238,17242,17247],{"__ignoreMap":5224},[5228,17031,17032,17034,17037,17040,17043],{"class":5230,"line":5231},[5228,17033,5689],{"class":5480},[5228,17035,17036],{"class":5259}," EventEmitter2",[5228,17038,17039],{"class":5480}," from",[5228,17041,17042],{"class":5703}," 'eventemitter2'",[5228,17044,5269],{"class":5249},[5228,17046,17047],{"class":5230,"line":5238},[5228,17048,5306],{"emptyLinePlaceholder":5305},[5228,17050,17051,17053,17055,17057,17059,17061],{"class":5230,"line":5253},[5228,17052,5952],{"class":5241},[5228,17054,6304],{"class":5474},[5228,17056,5371],{"class":5249},[5228,17058,5960],{"class":5241},[5228,17060,17036],{"class":5427},[5228,17062,17063],{"class":5249},"({\n",[5228,17065,17066,17069,17072],{"class":5230,"line":5272},[5228,17067,17068],{"class":5259},"  wildcard:",[5228,17070,17071],{"class":5241}," true",[5228,17073,5328],{"class":5249},[5228,17075,17076,17079,17082],{"class":5230,"line":5287},[5228,17077,17078],{"class":5259},"  delimiter:",[5228,17080,17081],{"class":5703}," ':'",[5228,17083,5328],{"class":5249},[5228,17085,17086,17089],{"class":5230,"line":5302},[5228,17087,17088],{"class":5259},"  maxListeners:",[5228,17090,17091],{"class":7154}," 20\n",[5228,17093,17094],{"class":5230,"line":5309},[5228,17095,6045],{"class":5249},[5228,17097,17098],{"class":5230,"line":5318},[5228,17099,5306],{"emptyLinePlaceholder":5305},[5228,17101,17102],{"class":5230,"line":5331},[5228,17103,17104],{"class":5234},"\u002F\u002F Підписка на всі події namespace 'user'\n",[5228,17106,17107,17109,17111,17113,17115,17118,17120,17122,17124,17126],{"class":5230,"line":5343},[5228,17108,6326],{"class":5259},[5228,17110,5112],{"class":5249},[5228,17112,5981],{"class":5427},[5228,17114,5431],{"class":5249},[5228,17116,17117],{"class":5703},"'user:*'",[5228,17119,6338],{"class":5249},[5228,17121,5434],{"class":5259},[5228,17123,6003],{"class":5249},[5228,17125,6006],{"class":5241},[5228,17127,5250],{"class":5249},[5228,17129,17130,17132,17134,17136,17138,17141,17143,17145],{"class":5230,"line":5354},[5228,17131,6356],{"class":5259},[5228,17133,5112],{"class":5249},[5228,17135,6361],{"class":5427},[5228,17137,5431],{"class":5249},[5228,17139,17140],{"class":5703},"'Подія користувача:'",[5228,17142,5442],{"class":5249},[5228,17144,5434],{"class":5259},[5228,17146,5500],{"class":5249},[5228,17148,17149],{"class":5230,"line":5360},[5228,17150,6045],{"class":5249},[5228,17152,17153],{"class":5230,"line":5378},[5228,17154,5306],{"emptyLinePlaceholder":5305},[5228,17156,17157,17159,17161,17163,17165,17167,17169,17171],{"class":5230,"line":5394},[5228,17158,6326],{"class":5259},[5228,17160,5112],{"class":5249},[5228,17162,5864],{"class":5427},[5228,17164,5431],{"class":5249},[5228,17166,16919],{"class":5703},[5228,17168,5442],{"class":5249},[5228,17170,16973],{"class":5703},[5228,17172,5500],{"class":5249},[5228,17174,17175,17177,17179,17181,17183,17186,17188,17190],{"class":5230,"line":5410},[5228,17176,6326],{"class":5259},[5228,17178,5112],{"class":5249},[5228,17180,5864],{"class":5427},[5228,17182,5431],{"class":5249},[5228,17184,17185],{"class":5703},"'user:updated'",[5228,17187,5442],{"class":5249},[5228,17189,16973],{"class":5703},[5228,17191,5500],{"class":5249},[5228,17193,17194,17196,17198,17200,17202,17205,17207,17209],{"class":5230,"line":5416},[5228,17195,6326],{"class":5259},[5228,17197,5112],{"class":5249},[5228,17199,5864],{"class":5427},[5228,17201,5431],{"class":5249},[5228,17203,17204],{"class":5703},"'user:deleted'",[5228,17206,5442],{"class":5249},[5228,17208,16973],{"class":5703},[5228,17210,5500],{"class":5249},[5228,17212,17213],{"class":5230,"line":5421},[5228,17214,5306],{"emptyLinePlaceholder":5305},[5228,17216,17217],{"class":5230,"line":5468},[5228,17218,16984],{"class":5234},[5228,17220,17221],{"class":5230,"line":5503},[5228,17222,17223],{"class":5234},"\u002F\u002F - Підтримка wildcards ('user:*', '**')\n",[5228,17225,17226],{"class":5230,"line":5509},[5228,17227,17228],{"class":5234},"\u002F\u002F - Простір імен для подій\n",[5228,17230,17231],{"class":5230,"line":5515},[5228,17232,17233],{"class":5234},"\u002F\u002F - Async слухачі з Promise\n",[5228,17235,17236],{"class":5230,"line":5543},[5228,17237,5306],{"emptyLinePlaceholder":5305},[5228,17239,17240],{"class":5230,"line":5565},[5228,17241,17008],{"class":5234},[5228,17243,17244],{"class":5230,"line":5587},[5228,17245,17246],{"class":5234},"\u002F\u002F - Додаткова залежність\n",[5228,17248,17249],{"class":5230,"line":5592},[5228,17250,17251],{"class":5234},"\u002F\u002F - Трохи повільніший за стандартний EventEmitter\n",[5219,17253,17256],{"className":5221,"code":17254,"filename":17255,"language":5223,"meta":5224,"style":5224},"import mitt from 'mitt';\n\ntype Events = {\n  'user:created': string;\n  'user:updated': { userId: string; changes: object };\n};\n\nconst emitter = mitt\u003CEvents>();\n\nemitter.on('user:created', (userId) => {\n  console.log('Користувач створено:', userId);\n});\n\nemitter.emit('user:created', 'user-123');\n\n\u002F\u002F Переваги:\n\u002F\u002F - Дуже маленький розмір (~200 байт)\n\u002F\u002F - TypeScript-native\n\u002F\u002F - Працює у браузері та Node.js\n\n\u002F\u002F Недоліки:\n\u002F\u002F - Мінімалістичний API\n\u002F\u002F - Відсутність просунутих функцій\n","mitt (мікро-бібліотека)",[5109,17257,17258,17272,17276,17285,17296,17322,17327,17331,17348,17352,17374,17392,17396,17400,17418,17422,17426,17431,17436,17441,17445,17449,17454],{"__ignoreMap":5224},[5228,17259,17260,17262,17265,17267,17270],{"class":5230,"line":5231},[5228,17261,5689],{"class":5480},[5228,17263,17264],{"class":5259}," mitt",[5228,17266,17039],{"class":5480},[5228,17268,17269],{"class":5703}," 'mitt'",[5228,17271,5269],{"class":5249},[5228,17273,17274],{"class":5230,"line":5238},[5228,17275,5306],{"emptyLinePlaceholder":5305},[5228,17277,17278,17280,17283],{"class":5230,"line":5253},[5228,17279,8130],{"class":5241},[5228,17281,17282],{"class":5245}," Events",[5228,17284,8320],{"class":5249},[5228,17286,17287,17290,17292,17294],{"class":5230,"line":5272},[5228,17288,17289],{"class":5703},"  'user:created'",[5228,17291,5263],{"class":5249},[5228,17293,5439],{"class":5245},[5228,17295,5269],{"class":5249},[5228,17297,17298,17301,17303,17305,17307,17309,17311,17314,17316,17319],{"class":5230,"line":5287},[5228,17299,17300],{"class":5703},"  'user:updated'",[5228,17302,10599],{"class":5249},[5228,17304,5434],{"class":5259},[5228,17306,5263],{"class":5249},[5228,17308,5439],{"class":5245},[5228,17310,8917],{"class":5249},[5228,17312,17313],{"class":5259},"changes",[5228,17315,5263],{"class":5249},[5228,17317,17318],{"class":5245},"object",[5228,17320,17321],{"class":5249}," };\n",[5228,17323,17324],{"class":5230,"line":5302},[5228,17325,17326],{"class":5249},"};\n",[5228,17328,17329],{"class":5230,"line":5309},[5228,17330,5306],{"emptyLinePlaceholder":5305},[5228,17332,17333,17335,17337,17339,17342,17344,17346],{"class":5230,"line":5318},[5228,17334,5952],{"class":5241},[5228,17336,6304],{"class":5474},[5228,17338,5371],{"class":5249},[5228,17340,17341],{"class":5427},"mitt",[5228,17343,5459],{"class":5249},[5228,17345,2047],{"class":5245},[5228,17347,11127],{"class":5249},[5228,17349,17350],{"class":5230,"line":5331},[5228,17351,5306],{"emptyLinePlaceholder":5305},[5228,17353,17354,17356,17358,17360,17362,17364,17366,17368,17370,17372],{"class":5230,"line":5343},[5228,17355,6326],{"class":5259},[5228,17357,5112],{"class":5249},[5228,17359,5981],{"class":5427},[5228,17361,5431],{"class":5249},[5228,17363,16919],{"class":5703},[5228,17365,6338],{"class":5249},[5228,17367,5434],{"class":5259},[5228,17369,6003],{"class":5249},[5228,17371,6006],{"class":5241},[5228,17373,5250],{"class":5249},[5228,17375,17376,17378,17380,17382,17384,17386,17388,17390],{"class":5230,"line":5354},[5228,17377,6356],{"class":5259},[5228,17379,5112],{"class":5249},[5228,17381,6361],{"class":5427},[5228,17383,5431],{"class":5249},[5228,17385,16942],{"class":5703},[5228,17387,5442],{"class":5249},[5228,17389,5434],{"class":5259},[5228,17391,5500],{"class":5249},[5228,17393,17394],{"class":5230,"line":5360},[5228,17395,6045],{"class":5249},[5228,17397,17398],{"class":5230,"line":5378},[5228,17399,5306],{"emptyLinePlaceholder":5305},[5228,17401,17402,17404,17406,17408,17410,17412,17414,17416],{"class":5230,"line":5394},[5228,17403,6326],{"class":5259},[5228,17405,5112],{"class":5249},[5228,17407,5864],{"class":5427},[5228,17409,5431],{"class":5249},[5228,17411,16919],{"class":5703},[5228,17413,5442],{"class":5249},[5228,17415,16973],{"class":5703},[5228,17417,5500],{"class":5249},[5228,17419,17420],{"class":5230,"line":5410},[5228,17421,5306],{"emptyLinePlaceholder":5305},[5228,17423,17424],{"class":5230,"line":5416},[5228,17425,16984],{"class":5234},[5228,17427,17428],{"class":5230,"line":5421},[5228,17429,17430],{"class":5234},"\u002F\u002F - Дуже маленький розмір (~200 байт)\n",[5228,17432,17433],{"class":5230,"line":5468},[5228,17434,17435],{"class":5234},"\u002F\u002F - TypeScript-native\n",[5228,17437,17438],{"class":5230,"line":5503},[5228,17439,17440],{"class":5234},"\u002F\u002F - Працює у браузері та Node.js\n",[5228,17442,17443],{"class":5230,"line":5509},[5228,17444,5306],{"emptyLinePlaceholder":5305},[5228,17446,17447],{"class":5230,"line":5515},[5228,17448,17008],{"class":5234},[5228,17450,17451],{"class":5230,"line":5543},[5228,17452,17453],{"class":5234},"\u002F\u002F - Мінімалістичний API\n",[5228,17455,17456],{"class":5230,"line":5565},[5228,17457,17458],{"class":5234},"\u002F\u002F - Відсутність просунутих функцій\n",[5190,17460,17461,17462,17464],{},"Для більшості застосунків Node.js достатньо стандартного ",[5109,17463,5111],{},". Розширені бібліотеки варто використовувати, лише якщо потрібні специфічні функції (wildcards, пріоритети, простори імен).",[5185,17466,17468],{"id":17467},"практичні-рекомендації-та-патерни","Практичні рекомендації та патерни",[17470,17471,17472,17476,17482,17486,17499,17503,17506,17510,17520,17524,17532,17536,17539,17543],"steps",{},[6442,17473,17475],{"id":17474},"правило-1-завжди-обробляйте-подію-error","Правило 1: Завжди обробляйте подію 'error'",[5190,17477,17478,17479,17481],{},"Необроблена подія ",[5109,17480,7907],{}," призводить до аварійного завершення процесу. Реєструйте обробник одразу після створення емітера.",[6442,17483,17485],{"id":17484},"правило-2-іменування-подій-через-двокрапку-namespace","Правило 2: Іменування подій через двокрапку (namespace)",[5190,17487,17488,17489,5442,17492,5442,17495,17498],{},"Використовуйте префікси для групування пов'язаних подій: ",[5109,17490,17491],{},"user:created",[5109,17493,17494],{},"user:updated",[5109,17496,17497],{},"order:completed",". Це полегшує розуміння архітектури та пошук подій у коді.",[6442,17500,17502],{"id":17501},"правило-3-документуйте-події-та-їх-аргументи","Правило 3: Документуйте події та їх аргументи",[5190,17504,17505],{},"Створіть TypeScript інтерфейс або JSDoc коментар, що описує всі події та їх параметри. Це критично важливо для підтримуваності коду.",[6442,17507,17509],{"id":17508},"правило-4-уникайте-блокуючих-операцій-у-слухачах","Правило 4: Уникайте блокуючих операцій у слухачах",[5190,17511,17512,17513,5442,17516,17519],{},"Слухачі викликаються синхронно. Для важких обчислень або асинхронних операцій використовуйте ",[5109,17514,17515],{},"setImmediate()",[5109,17517,17518],{},"process.nextTick()"," або Worker Threads.",[6442,17521,17523],{"id":17522},"правило-5-відписуйтесь-від-подій-при-знищенні-обєктів","Правило 5: Відписуйтесь від подій при знищенні об'єктів",[5190,17525,17526,17527,11495,17529,17531],{},"Щоб уникнути витоків пам'яті, завжди викликайте ",[5109,17528,7768],{},[5109,17530,7772],{}," при знищенні об'єкта, що підписувався на події.",[6442,17533,17535],{"id":17534},"правило-6-не-покладайтесь-на-порядок-викликів-слухачів","Правило 6: Не покладайтесь на порядок викликів слухачів",[5190,17537,17538],{},"Слухачі повинні бути незалежними та не залежати від порядку виконання. Якщо потрібна строга послідовність, використовуйте Promise ланцюжки або async\u002Fawait.",[6442,17540,17542],{"id":17541},"правило-7-використовуйте-eventemitter-для-багаторазових-подій-promise-для-одноразових-операцій","Правило 7: Використовуйте EventEmitter для багаторазових подій, Promise — для одноразових операцій",[5190,17544,17545],{},"Якщо операція завершується один раз (HTTP-запит, читання файлу), використовуйте Promise. Якщо подія може статися багато разів (клацання кнопок, нові з'єднання), використовуйте EventEmitter.",[5185,17547,17549],{"id":17548},"інтеграція-з-асинхронними-функціями","Інтеграція з асинхронними функціями",[5190,17551,17552],{},"Сучасний Node.js надає утиліти для інтеграції EventEmitter з async\u002Fawait:",[6442,17554,17556],{"id":17555},"очікування-події-через-once","Очікування події через once()",[5219,17558,17560],{"className":5221,"code":17559,"language":5223,"meta":5224,"style":5224},"import { once } from 'node:events';\nimport { createServer } from 'node:http';\n\nasync function startServer(): Promise\u003Cvoid> {\n  const server = createServer((req, res) => {\n    res.end('OK');\n  });\n\n  server.listen(3000);\n\n  \u002F\u002F Чекаємо події 'listening' як Promise\n  await once(server, 'listening');\n  \n  console.log('Сервер запущено та готовий приймати запити');\n}\n\nstartServer().catch(console.error);\n",[5109,17561,17562,17578,17594,17598,17617,17641,17656,17660,17664,17679,17683,17688,17705,17709,17724,17728,17732],{"__ignoreMap":5224},[5228,17563,17564,17566,17568,17570,17572,17574,17576],{"class":5230,"line":5231},[5228,17565,5689],{"class":5480},[5228,17567,5692],{"class":5249},[5228,17569,6877],{"class":5259},[5228,17571,5697],{"class":5249},[5228,17573,5700],{"class":5480},[5228,17575,5704],{"class":5703},[5228,17577,5269],{"class":5249},[5228,17579,17580,17582,17584,17586,17588,17590,17592],{"class":5230,"line":5238},[5228,17581,5689],{"class":5480},[5228,17583,5692],{"class":5249},[5228,17585,6996],{"class":5259},[5228,17587,5697],{"class":5249},[5228,17589,5700],{"class":5480},[5228,17591,7003],{"class":5703},[5228,17593,5269],{"class":5249},[5228,17595,17596],{"class":5230,"line":5253},[5228,17597,5306],{"emptyLinePlaceholder":5305},[5228,17599,17600,17602,17604,17607,17609,17611,17613,17615],{"class":5230,"line":5272},[5228,17601,5990],{"class":5241},[5228,17603,13036],{"class":5241},[5228,17605,17606],{"class":5427}," startServer",[5228,17608,8706],{"class":5249},[5228,17610,5456],{"class":5245},[5228,17612,5459],{"class":5249},[5228,17614,6522],{"class":5245},[5228,17616,5465],{"class":5249},[5228,17618,17619,17621,17623,17625,17627,17629,17631,17633,17635,17637,17639],{"class":5230,"line":5287},[5228,17620,9167],{"class":5241},[5228,17622,7078],{"class":5474},[5228,17624,5371],{"class":5249},[5228,17626,6996],{"class":5427},[5228,17628,7085],{"class":5249},[5228,17630,7088],{"class":5259},[5228,17632,5442],{"class":5249},[5228,17634,7093],{"class":5259},[5228,17636,6003],{"class":5249},[5228,17638,6006],{"class":5241},[5228,17640,5250],{"class":5249},[5228,17642,17643,17646,17648,17650,17652,17654],{"class":5230,"line":5302},[5228,17644,17645],{"class":5259},"    res",[5228,17647,5112],{"class":5249},[5228,17649,7124],{"class":5427},[5228,17651,5431],{"class":5249},[5228,17653,7129],{"class":5703},[5228,17655,5500],{"class":5249},[5228,17657,17658],{"class":5230,"line":5309},[5228,17659,13269],{"class":5249},[5228,17661,17662],{"class":5230,"line":5318},[5228,17663,5306],{"emptyLinePlaceholder":5305},[5228,17665,17666,17669,17671,17673,17675,17677],{"class":5230,"line":5331},[5228,17667,17668],{"class":5259},"  server",[5228,17670,5112],{"class":5249},[5228,17672,7149],{"class":5427},[5228,17674,5431],{"class":5249},[5228,17676,7155],{"class":7154},[5228,17678,5500],{"class":5249},[5228,17680,17681],{"class":5230,"line":5343},[5228,17682,5306],{"emptyLinePlaceholder":5305},[5228,17684,17685],{"class":5230,"line":5354},[5228,17686,17687],{"class":5234},"  \u002F\u002F Чекаємо події 'listening' як Promise\n",[5228,17689,17690,17692,17694,17696,17698,17700,17703],{"class":5230,"line":5360},[5228,17691,6014],{"class":5480},[5228,17693,13634],{"class":5427},[5228,17695,5431],{"class":5249},[5228,17697,7144],{"class":5259},[5228,17699,5442],{"class":5249},[5228,17701,17702],{"class":5703},"'listening'",[5228,17704,5500],{"class":5249},[5228,17706,17707],{"class":5230,"line":5378},[5228,17708,9816],{"class":5249},[5228,17710,17711,17713,17715,17717,17719,17722],{"class":5230,"line":5394},[5228,17712,6356],{"class":5259},[5228,17714,5112],{"class":5249},[5228,17716,6361],{"class":5427},[5228,17718,5431],{"class":5249},[5228,17720,17721],{"class":5703},"'Сервер запущено та готовий приймати запити'",[5228,17723,5500],{"class":5249},[5228,17725,17726],{"class":5230,"line":5410},[5228,17727,5610],{"class":5249},[5228,17729,17730],{"class":5230,"line":5416},[5228,17731,5306],{"emptyLinePlaceholder":5305},[5228,17733,17734,17737,17739,17741,17743,17745,17747,17749],{"class":5230,"line":5421},[5228,17735,17736],{"class":5427},"startServer",[5228,17738,9517],{"class":5249},[5228,17740,9520],{"class":5427},[5228,17742,5431],{"class":5249},[5228,17744,7459],{"class":5259},[5228,17746,5112],{"class":5249},[5228,17748,7907],{"class":5259},[5228,17750,5500],{"class":5249},[6442,17752,17754],{"id":17753},"перетворення-стріму-у-асинхронний-ітератор","Перетворення стріму у асинхронний ітератор",[5219,17756,17758],{"className":5221,"code":17757,"language":5223,"meta":5224,"style":5224},"import { on } from 'node:events';\nimport { EventEmitter } from 'node:events';\n\nasync function processEvents(): Promise\u003Cvoid> {\n  const emitter = new EventEmitter();\n\n  \u002F\u002F Генерація подій у фоновому режимі\n  let counter = 0;\n  const interval = setInterval(() => {\n    emitter.emit('data', { id: ++counter, timestamp: Date.now() });\n    \n    if (counter >= 5) {\n      clearInterval(interval);\n      emitter.emit('end');\n    }\n  }, 500);\n\n  \u002F\u002F Обробка подій через асинхронний ітератор\n  try {\n    for await (const [data] of on(emitter, 'data')) {\n      console.log('Отримано дані:', data);\n    }\n  } catch (error) {\n    console.error('Помилка обробки:', error);\n  }\n  \n  console.log('Обробка завершена');\n}\n\nprocessEvents();\n",[5109,17759,17760,17776,17792,17796,17815,17829,17833,17838,17851,17869,17905,17909,17924,17936,17951,17955,17965,17969,17974,17980,18014,18033,18037,18049,18068,18072,18076,18091,18095,18099],{"__ignoreMap":5224},[5228,17761,17762,17764,17766,17768,17770,17772,17774],{"class":5230,"line":5231},[5228,17763,5689],{"class":5480},[5228,17765,5692],{"class":5249},[5228,17767,5981],{"class":5259},[5228,17769,5697],{"class":5249},[5228,17771,5700],{"class":5480},[5228,17773,5704],{"class":5703},[5228,17775,5269],{"class":5249},[5228,17777,17778,17780,17782,17784,17786,17788,17790],{"class":5230,"line":5238},[5228,17779,5689],{"class":5480},[5228,17781,5692],{"class":5249},[5228,17783,5111],{"class":5259},[5228,17785,5697],{"class":5249},[5228,17787,5700],{"class":5480},[5228,17789,5704],{"class":5703},[5228,17791,5269],{"class":5249},[5228,17793,17794],{"class":5230,"line":5253},[5228,17795,5306],{"emptyLinePlaceholder":5305},[5228,17797,17798,17800,17802,17805,17807,17809,17811,17813],{"class":5230,"line":5272},[5228,17799,5990],{"class":5241},[5228,17801,13036],{"class":5241},[5228,17803,17804],{"class":5427}," processEvents",[5228,17806,8706],{"class":5249},[5228,17808,5456],{"class":5245},[5228,17810,5459],{"class":5249},[5228,17812,6522],{"class":5245},[5228,17814,5465],{"class":5249},[5228,17816,17817,17819,17821,17823,17825,17827],{"class":5230,"line":5287},[5228,17818,9167],{"class":5241},[5228,17820,6304],{"class":5474},[5228,17822,5371],{"class":5249},[5228,17824,5960],{"class":5241},[5228,17826,5786],{"class":5427},[5228,17828,5965],{"class":5249},[5228,17830,17831],{"class":5230,"line":5302},[5228,17832,5306],{"emptyLinePlaceholder":5305},[5228,17834,17835],{"class":5230,"line":5309},[5228,17836,17837],{"class":5234},"  \u002F\u002F Генерація подій у фоновому режимі\n",[5228,17839,17840,17842,17845,17847,17849],{"class":5230,"line":5318},[5228,17841,14735],{"class":5241},[5228,17843,17844],{"class":5259}," counter",[5228,17846,5371],{"class":5249},[5228,17848,9911],{"class":7154},[5228,17850,5269],{"class":5249},[5228,17852,17853,17855,17858,17860,17863,17865,17867],{"class":5230,"line":5331},[5228,17854,9167],{"class":5241},[5228,17856,17857],{"class":5474}," interval",[5228,17859,5371],{"class":5249},[5228,17861,17862],{"class":5427},"setInterval",[5228,17864,10143],{"class":5249},[5228,17866,6006],{"class":5241},[5228,17868,5250],{"class":5249},[5228,17870,17871,17874,17876,17878,17880,17882,17884,17887,17890,17893,17895,17897,17899,17901,17903],{"class":5230,"line":5343},[5228,17872,17873],{"class":5259},"    emitter",[5228,17875,5112],{"class":5249},[5228,17877,5864],{"class":5427},[5228,17879,5431],{"class":5249},[5228,17881,6335],{"class":5703},[5228,17883,8856],{"class":5249},[5228,17885,17886],{"class":5259},"id:",[5228,17888,17889],{"class":5249}," ++",[5228,17891,17892],{"class":5259},"counter",[5228,17894,5442],{"class":5249},[5228,17896,12848],{"class":5259},[5228,17898,7369],{"class":5259},[5228,17900,5112],{"class":5249},[5228,17902,8756],{"class":5427},[5228,17904,12855],{"class":5249},[5228,17906,17907],{"class":5230,"line":5354},[5228,17908,5506],{"class":5249},[5228,17910,17911,17913,17915,17917,17920,17922],{"class":5230,"line":5360},[5228,17912,8450],{"class":5480},[5228,17914,5102],{"class":5249},[5228,17916,17892],{"class":5259},[5228,17918,17919],{"class":5249}," >= ",[5228,17921,9925],{"class":7154},[5228,17923,8462],{"class":5249},[5228,17925,17926,17929,17931,17934],{"class":5230,"line":5378},[5228,17927,17928],{"class":5427},"      clearInterval",[5228,17930,5431],{"class":5249},[5228,17932,17933],{"class":5259},"interval",[5228,17935,5500],{"class":5249},[5228,17937,17938,17941,17943,17945,17947,17949],{"class":5230,"line":5394},[5228,17939,17940],{"class":5259},"      emitter",[5228,17942,5112],{"class":5249},[5228,17944,5864],{"class":5427},[5228,17946,5431],{"class":5249},[5228,17948,12280],{"class":5703},[5228,17950,5500],{"class":5249},[5228,17952,17953],{"class":5230,"line":5410},[5228,17954,8487],{"class":5249},[5228,17956,17957,17960,17963],{"class":5230,"line":5416},[5228,17958,17959],{"class":5249},"  }, ",[5228,17961,17962],{"class":7154},"500",[5228,17964,5500],{"class":5249},[5228,17966,17967],{"class":5230,"line":5421},[5228,17968,5306],{"emptyLinePlaceholder":5305},[5228,17970,17971],{"class":5230,"line":5468},[5228,17972,17973],{"class":5234},"  \u002F\u002F Обробка подій через асинхронний ітератор\n",[5228,17975,17976,17978],{"class":5230,"line":5503},[5228,17977,13068],{"class":5480},[5228,17979,5250],{"class":5249},[5228,17981,17982,17984,17987,17989,17991,17994,17996,17998,18001,18004,18006,18008,18010,18012],{"class":5230,"line":5509},[5228,17983,9004],{"class":5480},[5228,17985,17986],{"class":5480}," await",[5228,17988,5102],{"class":5249},[5228,17990,5952],{"class":5241},[5228,17992,17993],{"class":5249}," [",[5228,17995,7621],{"class":5474},[5228,17997,9207],{"class":5249},[5228,17999,18000],{"class":5241},"of",[5228,18002,18003],{"class":5427}," on",[5228,18005,5431],{"class":5249},[5228,18007,6326],{"class":5259},[5228,18009,5442],{"class":5249},[5228,18011,6335],{"class":5703},[5228,18013,15834],{"class":5249},[5228,18015,18016,18018,18020,18022,18024,18027,18029,18031],{"class":5230,"line":5515},[5228,18017,15027],{"class":5259},[5228,18019,5112],{"class":5249},[5228,18021,6361],{"class":5427},[5228,18023,5431],{"class":5249},[5228,18025,18026],{"class":5703},"'Отримано дані:'",[5228,18028,5442],{"class":5249},[5228,18030,7621],{"class":5259},[5228,18032,5500],{"class":5249},[5228,18034,18035],{"class":5230,"line":5543},[5228,18036,8487],{"class":5249},[5228,18038,18039,18041,18043,18045,18047],{"class":5230,"line":5565},[5228,18040,13124],{"class":5249},[5228,18042,9520],{"class":5480},[5228,18044,5102],{"class":5249},[5228,18046,7907],{"class":5259},[5228,18048,8462],{"class":5249},[5228,18050,18051,18053,18055,18057,18059,18062,18064,18066],{"class":5230,"line":5587},[5228,18052,13209],{"class":5259},[5228,18054,5112],{"class":5249},[5228,18056,7907],{"class":5427},[5228,18058,5431],{"class":5249},[5228,18060,18061],{"class":5703},"'Помилка обробки:'",[5228,18063,5442],{"class":5249},[5228,18065,7907],{"class":5259},[5228,18067,5500],{"class":5249},[5228,18069,18070],{"class":5230,"line":5592},[5228,18071,5413],{"class":5249},[5228,18073,18074],{"class":5230,"line":5602},[5228,18075,9816],{"class":5249},[5228,18077,18078,18080,18082,18084,18086,18089],{"class":5230,"line":5607},[5228,18079,6356],{"class":5259},[5228,18081,5112],{"class":5249},[5228,18083,6361],{"class":5427},[5228,18085,5431],{"class":5249},[5228,18087,18088],{"class":5703},"'Обробка завершена'",[5228,18090,5500],{"class":5249},[5228,18092,18093],{"class":5230,"line":5949},[5228,18094,5610],{"class":5249},[5228,18096,18097],{"class":5230,"line":5968},[5228,18098,5306],{"emptyLinePlaceholder":5305},[5228,18100,18101,18104],{"class":5230,"line":5973},[5228,18102,18103],{"class":5427},"processEvents",[5228,18105,5965],{"class":5249},[5190,18107,18108],{},"Вивід:",[5219,18110,18113],{"className":18111,"code":18112,"language":6675},[9537],"Отримано дані: { id: 1, timestamp: 1725358207000 }\nОтримано дані: { id: 2, timestamp: 1725358207500 }\nОтримано дані: { id: 3, timestamp: 1725358208000 }\nОтримано дані: { id: 4, timestamp: 1725358208500 }\nОтримано дані: { id: 5, timestamp: 1725358209000 }\nОбробка завершена\n",[5109,18114,18112],{"__ignoreMap":5224},[6252,18116,13841,18117,18119,18120,18123],{},[5109,18118,6806],{}," перетворює EventEmitter у асинхронний ітератор, що дозволяє використовувати ",[5109,18121,18122],{},"for await...of"," для обробки потоку подій. Це зручно для обробки стрімів або WebSocket-повідомлень у асинхронному стилі.",[5185,18125,18127],{"id":18126},"моніторинг-та-налагодження-подій","Моніторинг та налагодження подій",[5190,18129,18130],{},"Node.js надає вбудовані засоби для моніторингу подій:",[6442,18132,18134],{"id":18133},"відстеження-кількості-слухачів","Відстеження кількості слухачів",[5219,18136,18138],{"className":5221,"code":18137,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\nemitter.on('data', () => {});\nemitter.on('data', () => {});\nemitter.on('error', () => {});\n\nconsole.log('Слухачів події \"data\":', emitter.listenerCount('data')); \u002F\u002F 2\nconsole.log('Слухачів події \"error\":', emitter.listenerCount('error')); \u002F\u002F 1\n\n\u002F\u002F Отримати список імен всіх подій\nconsole.log('Всі події:', emitter.eventNames()); \u002F\u002F ['data', 'error']\n",[5109,18139,18140,18156,18160,18174,18178,18196,18214,18232,18236,18266,18296,18300,18305],{"__ignoreMap":5224},[5228,18141,18142,18144,18146,18148,18150,18152,18154],{"class":5230,"line":5231},[5228,18143,5689],{"class":5480},[5228,18145,5692],{"class":5249},[5228,18147,5111],{"class":5259},[5228,18149,5697],{"class":5249},[5228,18151,5700],{"class":5480},[5228,18153,5704],{"class":5703},[5228,18155,5269],{"class":5249},[5228,18157,18158],{"class":5230,"line":5238},[5228,18159,5306],{"emptyLinePlaceholder":5305},[5228,18161,18162,18164,18166,18168,18170,18172],{"class":5230,"line":5253},[5228,18163,5952],{"class":5241},[5228,18165,6304],{"class":5474},[5228,18167,5371],{"class":5249},[5228,18169,5960],{"class":5241},[5228,18171,5786],{"class":5427},[5228,18173,5965],{"class":5249},[5228,18175,18176],{"class":5230,"line":5272},[5228,18177,5306],{"emptyLinePlaceholder":5305},[5228,18179,18180,18182,18184,18186,18188,18190,18192,18194],{"class":5230,"line":5287},[5228,18181,6326],{"class":5259},[5228,18183,5112],{"class":5249},[5228,18185,5981],{"class":5427},[5228,18187,5431],{"class":5249},[5228,18189,6335],{"class":5703},[5228,18191,6885],{"class":5249},[5228,18193,6006],{"class":5241},[5228,18195,7502],{"class":5249},[5228,18197,18198,18200,18202,18204,18206,18208,18210,18212],{"class":5230,"line":5302},[5228,18199,6326],{"class":5259},[5228,18201,5112],{"class":5249},[5228,18203,5981],{"class":5427},[5228,18205,5431],{"class":5249},[5228,18207,6335],{"class":5703},[5228,18209,6885],{"class":5249},[5228,18211,6006],{"class":5241},[5228,18213,7502],{"class":5249},[5228,18215,18216,18218,18220,18222,18224,18226,18228,18230],{"class":5230,"line":5309},[5228,18217,6326],{"class":5259},[5228,18219,5112],{"class":5249},[5228,18221,5981],{"class":5427},[5228,18223,5431],{"class":5249},[5228,18225,7896],{"class":5703},[5228,18227,6885],{"class":5249},[5228,18229,6006],{"class":5241},[5228,18231,7502],{"class":5249},[5228,18233,18234],{"class":5230,"line":5318},[5228,18235,5306],{"emptyLinePlaceholder":5305},[5228,18237,18238,18240,18242,18244,18246,18249,18251,18253,18255,18257,18259,18261,18263],{"class":5230,"line":5331},[5228,18239,7459],{"class":5259},[5228,18241,5112],{"class":5249},[5228,18243,6361],{"class":5427},[5228,18245,5431],{"class":5249},[5228,18247,18248],{"class":5703},"'Слухачів події \"data\":'",[5228,18250,5442],{"class":5249},[5228,18252,6326],{"class":5259},[5228,18254,5112],{"class":5249},[5228,18256,14144],{"class":5427},[5228,18258,5431],{"class":5249},[5228,18260,6335],{"class":5703},[5228,18262,14151],{"class":5249},[5228,18264,18265],{"class":5234},"\u002F\u002F 2\n",[5228,18267,18268,18270,18272,18274,18276,18279,18281,18283,18285,18287,18289,18291,18293],{"class":5230,"line":5343},[5228,18269,7459],{"class":5259},[5228,18271,5112],{"class":5249},[5228,18273,6361],{"class":5427},[5228,18275,5431],{"class":5249},[5228,18277,18278],{"class":5703},"'Слухачів події \"error\":'",[5228,18280,5442],{"class":5249},[5228,18282,6326],{"class":5259},[5228,18284,5112],{"class":5249},[5228,18286,14144],{"class":5427},[5228,18288,5431],{"class":5249},[5228,18290,7896],{"class":5703},[5228,18292,14151],{"class":5249},[5228,18294,18295],{"class":5234},"\u002F\u002F 1\n",[5228,18297,18298],{"class":5230,"line":5354},[5228,18299,5306],{"emptyLinePlaceholder":5305},[5228,18301,18302],{"class":5230,"line":5360},[5228,18303,18304],{"class":5234},"\u002F\u002F Отримати список імен всіх подій\n",[5228,18306,18307,18309,18311,18313,18315,18318,18320,18322,18324,18327,18330],{"class":5230,"line":5378},[5228,18308,7459],{"class":5259},[5228,18310,5112],{"class":5249},[5228,18312,6361],{"class":5427},[5228,18314,5431],{"class":5249},[5228,18316,18317],{"class":5703},"'Всі події:'",[5228,18319,5442],{"class":5249},[5228,18321,6326],{"class":5259},[5228,18323,5112],{"class":5249},[5228,18325,18326],{"class":5427},"eventNames",[5228,18328,18329],{"class":5249},"()); ",[5228,18331,18332],{"class":5234},"\u002F\u002F ['data', 'error']\n",[6442,18334,18336],{"id":18335},"налагодження-через-подію-newlistener","Налагодження через подію 'newListener'",[5190,18338,18339,18340,18343],{},"EventEmitter генерує спеціальну подію ",[5109,18341,18342],{},"newListener"," при додаванні нового слухача:",[5219,18345,18347],{"className":5221,"code":18346,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\nemitter.on('newListener', (eventName, listener) => {\n  console.log(`Додано слухача для події: ${String(eventName)}`);\n});\n\nemitter.on('removeListener', (eventName, listener) => {\n  console.log(`Видалено слухача події: ${String(eventName)}`);\n});\n\nemitter.on('data', () => {}); \u002F\u002F Вивід: Додано слухача для події: data\nemitter.on('error', () => {}); \u002F\u002F Вивід: Додано слухача для події: error\n\nconst handler = () => {};\nemitter.on('test', handler);\nemitter.off('test', handler); \u002F\u002F Вивід: Видалено слухача події: test\n",[5109,18348,18349,18365,18369,18383,18387,18415,18445,18449,18453,18480,18509,18513,18517,18539,18560,18564,18579,18599],{"__ignoreMap":5224},[5228,18350,18351,18353,18355,18357,18359,18361,18363],{"class":5230,"line":5231},[5228,18352,5689],{"class":5480},[5228,18354,5692],{"class":5249},[5228,18356,5111],{"class":5259},[5228,18358,5697],{"class":5249},[5228,18360,5700],{"class":5480},[5228,18362,5704],{"class":5703},[5228,18364,5269],{"class":5249},[5228,18366,18367],{"class":5230,"line":5238},[5228,18368,5306],{"emptyLinePlaceholder":5305},[5228,18370,18371,18373,18375,18377,18379,18381],{"class":5230,"line":5253},[5228,18372,5952],{"class":5241},[5228,18374,6304],{"class":5474},[5228,18376,5371],{"class":5249},[5228,18378,5960],{"class":5241},[5228,18380,5786],{"class":5427},[5228,18382,5965],{"class":5249},[5228,18384,18385],{"class":5230,"line":5272},[5228,18386,5306],{"emptyLinePlaceholder":5305},[5228,18388,18389,18391,18393,18395,18397,18400,18402,18405,18407,18409,18411,18413],{"class":5230,"line":5287},[5228,18390,6326],{"class":5259},[5228,18392,5112],{"class":5249},[5228,18394,5981],{"class":5427},[5228,18396,5431],{"class":5249},[5228,18398,18399],{"class":5703},"'newListener'",[5228,18401,6338],{"class":5249},[5228,18403,18404],{"class":5259},"eventName",[5228,18406,5442],{"class":5249},[5228,18408,6451],{"class":5259},[5228,18410,6003],{"class":5249},[5228,18412,6006],{"class":5241},[5228,18414,5250],{"class":5249},[5228,18416,18417,18419,18421,18423,18425,18428,18430,18433,18435,18437,18439,18441,18443],{"class":5230,"line":5302},[5228,18418,6356],{"class":5259},[5228,18420,5112],{"class":5249},[5228,18422,6361],{"class":5427},[5228,18424,5431],{"class":5249},[5228,18426,18427],{"class":5703},"`Додано слухача для події: ",[5228,18429,6540],{"class":5241},[5228,18431,18432],{"class":5427},"String",[5228,18434,5431],{"class":7320},[5228,18436,18404],{"class":5259},[5228,18438,15735],{"class":7320},[5228,18440,6545],{"class":5241},[5228,18442,6548],{"class":5703},[5228,18444,5500],{"class":5249},[5228,18446,18447],{"class":5230,"line":5309},[5228,18448,6045],{"class":5249},[5228,18450,18451],{"class":5230,"line":5318},[5228,18452,5306],{"emptyLinePlaceholder":5305},[5228,18454,18455,18457,18459,18461,18463,18466,18468,18470,18472,18474,18476,18478],{"class":5230,"line":5331},[5228,18456,6326],{"class":5259},[5228,18458,5112],{"class":5249},[5228,18460,5981],{"class":5427},[5228,18462,5431],{"class":5249},[5228,18464,18465],{"class":5703},"'removeListener'",[5228,18467,6338],{"class":5249},[5228,18469,18404],{"class":5259},[5228,18471,5442],{"class":5249},[5228,18473,6451],{"class":5259},[5228,18475,6003],{"class":5249},[5228,18477,6006],{"class":5241},[5228,18479,5250],{"class":5249},[5228,18481,18482,18484,18486,18488,18490,18493,18495,18497,18499,18501,18503,18505,18507],{"class":5230,"line":5343},[5228,18483,6356],{"class":5259},[5228,18485,5112],{"class":5249},[5228,18487,6361],{"class":5427},[5228,18489,5431],{"class":5249},[5228,18491,18492],{"class":5703},"`Видалено слухача події: ",[5228,18494,6540],{"class":5241},[5228,18496,18432],{"class":5427},[5228,18498,5431],{"class":7320},[5228,18500,18404],{"class":5259},[5228,18502,15735],{"class":7320},[5228,18504,6545],{"class":5241},[5228,18506,6548],{"class":5703},[5228,18508,5500],{"class":5249},[5228,18510,18511],{"class":5230,"line":5354},[5228,18512,6045],{"class":5249},[5228,18514,18515],{"class":5230,"line":5360},[5228,18516,5306],{"emptyLinePlaceholder":5305},[5228,18518,18519,18521,18523,18525,18527,18529,18531,18533,18536],{"class":5230,"line":5378},[5228,18520,6326],{"class":5259},[5228,18522,5112],{"class":5249},[5228,18524,5981],{"class":5427},[5228,18526,5431],{"class":5249},[5228,18528,6335],{"class":5703},[5228,18530,6885],{"class":5249},[5228,18532,6006],{"class":5241},[5228,18534,18535],{"class":5249}," {}); ",[5228,18537,18538],{"class":5234},"\u002F\u002F Вивід: Додано слухача для події: data\n",[5228,18540,18541,18543,18545,18547,18549,18551,18553,18555,18557],{"class":5230,"line":5394},[5228,18542,6326],{"class":5259},[5228,18544,5112],{"class":5249},[5228,18546,5981],{"class":5427},[5228,18548,5431],{"class":5249},[5228,18550,7896],{"class":5703},[5228,18552,6885],{"class":5249},[5228,18554,6006],{"class":5241},[5228,18556,18535],{"class":5249},[5228,18558,18559],{"class":5234},"\u002F\u002F Вивід: Додано слухача для події: error\n",[5228,18561,18562],{"class":5230,"line":5410},[5228,18563,5306],{"emptyLinePlaceholder":5305},[5228,18565,18566,18568,18571,18574,18576],{"class":5230,"line":5416},[5228,18567,5952],{"class":5241},[5228,18569,18570],{"class":5427}," handler",[5228,18572,18573],{"class":5249}," = () ",[5228,18575,6006],{"class":5241},[5228,18577,18578],{"class":5249}," {};\n",[5228,18580,18581,18583,18585,18587,18589,18592,18594,18597],{"class":5230,"line":5421},[5228,18582,6326],{"class":5259},[5228,18584,5112],{"class":5249},[5228,18586,5981],{"class":5427},[5228,18588,5431],{"class":5249},[5228,18590,18591],{"class":5703},"'test'",[5228,18593,5442],{"class":5249},[5228,18595,18596],{"class":5259},"handler",[5228,18598,5500],{"class":5249},[5228,18600,18601,18603,18605,18607,18609,18611,18613,18615,18617],{"class":5230,"line":5468},[5228,18602,6326],{"class":5259},[5228,18604,5112],{"class":5249},[5228,18606,7721],{"class":5427},[5228,18608,5431],{"class":5249},[5228,18610,18591],{"class":5703},[5228,18612,5442],{"class":5249},[5228,18614,18596],{"class":5259},[5228,18616,6602],{"class":5249},[5228,18618,18619],{"class":5234},"\u002F\u002F Вивід: Видалено слухача події: test\n",[5190,18621,18622],{},"Це корисно для налагодження витоків пам'яті та відстеження динаміки підписок.",[6442,18624,18626],{"id":18625},"захист-від-витоків-памяті-setmaxlisteners","Захист від витоків пам'яті: setMaxListeners",[5219,18628,18630],{"className":5221,"code":18629,"language":5223,"meta":5224,"style":5224},"import { EventEmitter } from 'node:events';\n\nconst emitter = new EventEmitter();\n\n\u002F\u002F Збільшуємо ліміт для легітимних випадків (чат-сервер, WebSocket)\nemitter.setMaxListeners(1000);\n\nfor (let i = 0; i \u003C 500; i++) {\n  emitter.on('message', () => {\n    \u002F\u002F Обробка повідомлення\n  });\n}\n\nconsole.log('Кількість слухачів:', emitter.listenerCount('message')); \u002F\u002F 500\nconsole.log('Максимальний ліміт:', emitter.getMaxListeners()); \u002F\u002F 1000\n",[5109,18631,18632,18648,18652,18666,18670,18675,18690,18694,18722,18741,18746,18750,18754,18758,18787],{"__ignoreMap":5224},[5228,18633,18634,18636,18638,18640,18642,18644,18646],{"class":5230,"line":5231},[5228,18635,5689],{"class":5480},[5228,18637,5692],{"class":5249},[5228,18639,5111],{"class":5259},[5228,18641,5697],{"class":5249},[5228,18643,5700],{"class":5480},[5228,18645,5704],{"class":5703},[5228,18647,5269],{"class":5249},[5228,18649,18650],{"class":5230,"line":5238},[5228,18651,5306],{"emptyLinePlaceholder":5305},[5228,18653,18654,18656,18658,18660,18662,18664],{"class":5230,"line":5253},[5228,18655,5952],{"class":5241},[5228,18657,6304],{"class":5474},[5228,18659,5371],{"class":5249},[5228,18661,5960],{"class":5241},[5228,18663,5786],{"class":5427},[5228,18665,5965],{"class":5249},[5228,18667,18668],{"class":5230,"line":5272},[5228,18669,5306],{"emptyLinePlaceholder":5305},[5228,18671,18672],{"class":5230,"line":5287},[5228,18673,18674],{"class":5234},"\u002F\u002F Збільшуємо ліміт для легітимних випадків (чат-сервер, WebSocket)\n",[5228,18676,18677,18679,18681,18684,18686,18688],{"class":5230,"line":5302},[5228,18678,6326],{"class":5259},[5228,18680,5112],{"class":5249},[5228,18682,18683],{"class":5427},"setMaxListeners",[5228,18685,5431],{"class":5249},[5228,18687,10167],{"class":7154},[5228,18689,5500],{"class":5249},[5228,18691,18692],{"class":5230,"line":5309},[5228,18693,5306],{"emptyLinePlaceholder":5305},[5228,18695,18696,18698,18700,18702,18704,18706,18708,18710,18712,18714,18716,18718,18720],{"class":5230,"line":5318},[5228,18697,14064],{"class":5480},[5228,18699,5102],{"class":5249},[5228,18701,14069],{"class":5241},[5228,18703,14072],{"class":5259},[5228,18705,5371],{"class":5249},[5228,18707,9911],{"class":7154},[5228,18709,8917],{"class":5249},[5228,18711,14081],{"class":5259},[5228,18713,10080],{"class":5249},[5228,18715,17962],{"class":7154},[5228,18717,8917],{"class":5249},[5228,18719,14081],{"class":5259},[5228,18721,14093],{"class":5249},[5228,18723,18724,18727,18729,18731,18733,18735,18737,18739],{"class":5230,"line":5331},[5228,18725,18726],{"class":5259},"  emitter",[5228,18728,5112],{"class":5249},[5228,18730,5981],{"class":5427},[5228,18732,5431],{"class":5249},[5228,18734,6670],{"class":5703},[5228,18736,6885],{"class":5249},[5228,18738,6006],{"class":5241},[5228,18740,5250],{"class":5249},[5228,18742,18743],{"class":5230,"line":5343},[5228,18744,18745],{"class":5234},"    \u002F\u002F Обробка повідомлення\n",[5228,18747,18748],{"class":5230,"line":5354},[5228,18749,13269],{"class":5249},[5228,18751,18752],{"class":5230,"line":5360},[5228,18753,5610],{"class":5249},[5228,18755,18756],{"class":5230,"line":5378},[5228,18757,5306],{"emptyLinePlaceholder":5305},[5228,18759,18760,18762,18764,18766,18768,18770,18772,18774,18776,18778,18780,18782,18784],{"class":5230,"line":5394},[5228,18761,7459],{"class":5259},[5228,18763,5112],{"class":5249},[5228,18765,6361],{"class":5427},[5228,18767,5431],{"class":5249},[5228,18769,14134],{"class":5703},[5228,18771,5442],{"class":5249},[5228,18773,6326],{"class":5259},[5228,18775,5112],{"class":5249},[5228,18777,14144],{"class":5427},[5228,18779,5431],{"class":5249},[5228,18781,6670],{"class":5703},[5228,18783,14151],{"class":5249},[5228,18785,18786],{"class":5234},"\u002F\u002F 500\n",[5228,18788,18789,18791,18793,18795,18797,18800,18802,18804,18806,18809,18811],{"class":5230,"line":5410},[5228,18790,7459],{"class":5259},[5228,18792,5112],{"class":5249},[5228,18794,6361],{"class":5427},[5228,18796,5431],{"class":5249},[5228,18798,18799],{"class":5703},"'Максимальний ліміт:'",[5228,18801,5442],{"class":5249},[5228,18803,6326],{"class":5259},[5228,18805,5112],{"class":5249},[5228,18807,18808],{"class":5427},"getMaxListeners",[5228,18810,18329],{"class":5249},[5228,18812,18813],{"class":5234},"\u002F\u002F 1000\n",[5190,18815,18816,18817,5112],{},"За замовчуванням Node.js виводить попередження, якщо до однієї події додано більше 10 слухачів. Для систем з великою кількістю підписників (чати, нотифікації) збільште ліміт через ",[5109,18818,18819],{},"setMaxListeners()",[5185,18821,18823],{"id":18822},"підсумок-та-закріплення-матеріалу","Підсумок та закріплення матеріалу",[5084,18825,18826,18831,18876,18885,18903,18907],{},[5087,18827,18830],{"icon":18828,"title":18829},"i-lucide-eye","📌 Патерн Observer","EventEmitter реалізує патерн Observer для слабкого зв'язування компонентів через події. Об'єкти взаємодіють, не знаючи про конкретні реалізації один одного.",[5087,18832,18834],{"icon":4574,"title":18833},"🔑 Ключові методи",[5092,18835,18836,18844,18852,18860,18868],{},[5095,18837,18838,18843],{},[5099,18839,18840,14644],{},[5109,18841,18842],{},"on(event, listener)"," підписка на подію (багаторазово).",[5095,18845,18846,18851],{},[5099,18847,18848,14644],{},[5109,18849,18850],{},"once(event, listener)"," підписка на одну подію (один раз).",[5095,18853,18854,18859],{},[5099,18855,18856,14644],{},[5109,18857,18858],{},"emit(event, ...args)"," генерація події з передачею даних.",[5095,18861,18862,18867],{},[5099,18863,18864,14644],{},[5109,18865,18866],{},"off(event, listener)"," відписка від події.",[5095,18869,18870,18875],{},[5099,18871,18872,14644],{},[5109,18873,18874],{},"removeAllListeners(event?)"," видалення всіх слухачів.",[5087,18877,9574,18880,18882,18883,5112],{"icon":18878,"title":18879},"i-lucide-alert-triangle","⚠️ Обробка помилок",[5109,18881,7907],{}," має спеціальний статус: якщо жоден слухач не зареєстрований, процес Node.js аварійно завершується. Завжди додавайте обробник ",[5109,18884,7907],{},[5087,18886,18889],{"icon":18887,"title":18888},"i-lucide-git-compare","🔄 EventEmitter vs Promise",[5092,18890,18891,18897],{},[5095,18892,18893,18896],{},[5099,18894,18895],{},"EventEmitter:"," багаторазові події (клацання кнопок, нові з'єднання, зміни файлів).",[5095,18898,18899,18902],{},[5099,18900,18901],{},"Promise:"," одноразові операції (HTTP-запити, читання файлів, запити до БД).",[5087,18904,18906],{"icon":3028,"title":18905},"🛠️ Вбудовані емітери","Багато Node.js API успадковують EventEmitter: HTTP Server, Readable\u002FWritable Stream, Child Process, net.Socket, fs.FSWatcher.",[5087,18908,18911],{"icon":18909,"title":18910},"i-lucide-lightbulb","💡 Best Practices",[5092,18912,18913,18918,18921,18924,18927],{},[5095,18914,18915,18916,5112],{},"Завжди обробляйте ",[5109,18917,7907],{},[5095,18919,18920],{},"Відписуйтесь при знищенні об'єктів.",[5095,18922,18923],{},"Уникайте блокуючих операцій у слухачах.",[5095,18925,18926],{},"Документуйте події через TypeScript інтерфейси.",[5095,18928,18929,18930,13320],{},"Використовуйте namespace для імен подій (",[5109,18931,17491],{},[5185,18933,18935],{"id":18934},"інтерактивні-запитання-для-самоконтролю","Інтерактивні запитання для самоконтролю",[18937,18938,18939,18951,18968,18984,18999,19011],"accordion",{},[18940,18941,18944,18945,18947,18948,5112],"accordion-item",{"icon":18942,"label":18943},"i-lucide-help-circle","❓ Чому подія 'error' має спеціальний статус у EventEmitter?","Якщо EventEmitter генерує подію ",[5109,18946,7907],{},", але жоден слухач не зареєстрований для її обробки, Node.js вважає це критичною помилкою та аварійно завершує процес з кодом виходу 1. Це запобігає мовчазним відмовам, коли помилки ігноруються. Розробник зобов'язаний явно обробити помилку через ",[5109,18949,18950],{},"emitter.on('error', handler)",[18940,18952,6803,18954,18956,18957,18959,18960,18956,18962,18964,18965,18967],{"icon":18942,"label":18953},"❓ У чому різниця між on() та once()?",[5109,18955,6806],{}," реєструє слухача, який викликається ",[5099,18958,6455],{}," при генерації події. Метод ",[5109,18961,13844],{},[5099,18963,6824],{},", після чого автоматично відписується. ",[5109,18966,13844],{}," корисний для одноразових подій (завершення запуску сервера, перше з'єднання, завантаження конфігурації).",[18940,18969,7549,18971,18973,18974,18976,18977,18979,18980,7556,18982,7559],{"icon":18942,"label":18970},"❓ Чи викликаються слухачі подій синхронно чи асинхронно?",[5099,18972,7552],{}," у порядку їх реєстрації при виклику ",[5109,18975,7396],{},". Це означає, що метод ",[5109,18978,7396],{}," не повертає управління, поки всі слухачі не завершать виконання. Якщо слухач виконує важкі обчислення, він заблокує Event Loop. Для асинхронних операцій використовуйте ",[5109,18981,5990],{},[5109,18983,7396],{},[18940,18985,18987,18988,18991,18992,18995,18996,18998],{"icon":18942,"label":18986},"❓ Як запобігти витоку пам'яті при роботі з EventEmitter?","Витік пам'яті виникає, коли слухачі подій не відписуються при знищенні об'єкта. Вони залишаються у пам'яті, утримуючи посилання на об'єкт через замикання (",[5104,18989,18990],{},"closure","). Правильний підхід: зберігати посилання на функцію-слухач та викликати ",[5109,18993,18994],{},"emitter.off(event, listener)"," при знищенні об'єкта. Node.js виводить попередження ",[5109,18997,14629],{},", якщо кількість слухачів перевищує 10.",[18940,19000,19002,19003,19006,19007,19010],{"icon":18942,"label":19001},"❓ Коли варто використовувати EventEmitter замість Promise?","EventEmitter підходить для ",[5099,19004,19005],{},"багаторазових подій",", що відбуваються протягом життєвого циклу об'єкта (клацання кнопок, нові HTTP-з'єднання, зміни файлів, повідомлення WebSocket). Promise підходить для ",[5099,19008,19009],{},"одноразових асинхронних операцій"," з чітко визначеним завершенням (HTTP-запити, читання файлів, запити до бази даних). Promise вирішується один раз: fulfilled або rejected.",[18940,19012,19014,19015,13845,19017,5263,19019,19022,19023,19025,19026,5112],{"icon":18942,"label":19013},"❓ Як перетворити подію EventEmitter у Promise?","Використовуйте вбудовану функцію ",[5109,19016,13844],{},[5109,19018,6271],{},[5109,19020,19021],{},"await once(emitter, 'eventName')",". Це дозволяє очікувати одноразової події у асинхронних функціях. Для потоку подій використовуйте функцію ",[5109,19024,6806],{},", що перетворює EventEmitter у асинхронний ітератор: ",[5109,19027,19028],{},"for await (const [data] of on(emitter, 'data'))",[5185,19030,19032],{"id":19031},"додаткові-ресурси-та-практика","Додаткові ресурси та практика",[5084,19034,19035,19063,19097],{},[5087,19036,19038],{"icon":15,"title":19037},"📚 Офіційна документація",[5092,19039,19040,19049,19056],{},[5095,19041,19042],{},[19043,19044,19048],"a",{"href":19045,"rel":19046},"https:\u002F\u002Fnodejs.org\u002Fapi\u002Fevents.html",[19047],"nofollow","Node.js Events API",[5095,19050,19051],{},[19043,19052,19055],{"href":19053,"rel":19054},"https:\u002F\u002Fnodejs.org\u002Fapi\u002Fevents.html#class-eventemitter",[19047],"EventEmitter Reference",[5095,19057,19058],{},[19043,19059,19062],{"href":19060,"rel":19061},"https:\u002F\u002Frefactoring.guru\u002Fdesign-patterns\u002Fobserver",[19047],"Observer Pattern (Gang of Four)",[5087,19064,19066],{"icon":4365,"title":19065},"🔧 Корисні бібліотеки",[5092,19067,19068,19076,19083,19090],{},[5095,19069,19070,19075],{},[5099,19071,19072,14644],{},[5109,19073,19074],{},"eventemitter2"," Розширений EventEmitter з wildcards та пріоритетами.",[5095,19077,19078,19082],{},[5099,19079,19080,14644],{},[5109,19081,17341],{}," Мікро-бібліотека (~200 байт) для подій, TypeScript-native.",[5095,19084,19085,19089],{},[5099,19086,19087,14644],{},[5109,19088,6271],{}," Standalone версія Node.js EventEmitter для браузерів.",[5095,19091,19092,19096],{},[5099,19093,19094,14644],{},[5109,19095,11494],{}," Type-safe EventEmitter для TypeScript.",[5087,19098,19100],{"icon":5089,"title":19099},"🎯 Практичні вправи",[5615,19101,19102,19105,19117,19129],{},[5095,19103,19104],{},"Реалізуйте систему логування з підпискою на різні рівні (info, warn, error).",[5095,19106,19107,19108,5442,19111,5442,19114,5112],{},"Створіть клас FileWatcher, що генерує події ",[5109,19109,19110],{},"created",[5109,19112,19113],{},"modified",[5109,19115,19116],{},"deleted",[5095,19118,19119,19120,5442,19123,5442,19126,5112],{},"Напишіть Task Queue з подіями ",[5109,19121,19122],{},"task:queued",[5109,19124,19125],{},"task:started",[5109,19127,19128],{},"task:completed",[5095,19130,19131],{},"Імплементуйте чат-систему з EventEmitter для обміну повідомленнями.",[5185,19133,19135],{"id":19134},"висновок","Висновок",[5190,19137,19138],{},"EventEmitter є фундаментальним інструментом Node.js для побудови подієвих архітектур із слабким зв'язуванням компонентів. Розуміння патерна Observer та правильне використання подій дозволяє створювати гнучкі, масштабовані та підтримувані системи.",[5190,19140,19141],{},"Ключові принципи:",[5092,19143,19144,19152,19158,19164,19170],{},[5095,19145,19146,19151],{},[5099,19147,19148,19149],{},"Завжди обробляйте події ",[5109,19150,7907],{}," — це запобігає аварійним завершенням процесу.",[5095,19153,19154,19157],{},[5099,19155,19156],{},"Відписуйтесь від подій"," при знищенні об'єктів для уникнення витоків пам'яті.",[5095,19159,19160,19163],{},[5099,19161,19162],{},"Використовуйте EventEmitter для багаторазових подій",", Promise — для одноразових операцій.",[5095,19165,19166,19169],{},[5099,19167,19168],{},"Документуйте події"," через TypeScript інтерфейси для кращої підтримуваності.",[5095,19171,19172,19175],{},[5099,19173,19174],{},"Уникайте блокуючих операцій"," у слухачах — вони викликаються синхронно.",[5190,19177,19178,19179,19182],{},"Наступна лекція розгляне ",[5099,19180,19181],{},"Worker Threads"," для виконання CPU-інтенсивних завдань без блокування Event Loop.",[19184,19185],"hr",{},[5190,19187,19188,19191,19192,19195,19198],{},[5099,19189,19190],{},"Попередня лекція:"," Паралельне vs послідовне виконання асинхронних операцій",[19193,19194],"br",{},[5099,19196,19197],{},"Наступна лекція:"," Worker Threads — багатопотоковість у Node.js",[19200,19201,19202],"style",{},"html pre.shiki code .spJ8K, html code.shiki .spJ8K{--shiki-light:#008000;--shiki-default:#6A9955;--shiki-dark:#6A9955}html pre.shiki code .su1O8, html code.shiki .su1O8{--shiki-light:#0000FF;--shiki-default:#569CD6;--shiki-dark:#569CD6}html pre.shiki code .sN1BT, html code.shiki .sN1BT{--shiki-light:#267F99;--shiki-default:#4EC9B0;--shiki-dark:#4EC9B0}html pre.shiki code .sHH4Y, html code.shiki .sHH4Y{--shiki-light:#000000;--shiki-default:#D4D4D4;--shiki-dark:#D4D4D4}html pre.shiki code .siwwj, html code.shiki .siwwj{--shiki-light:#001080;--shiki-default:#9CDCFE;--shiki-dark:#9CDCFE}html pre.shiki code .s8Opu, html code.shiki .s8Opu{--shiki-light:#795E26;--shiki-default:#DCDCAA;--shiki-dark:#DCDCAA}html pre.shiki code .s-QsJ, html code.shiki .s-QsJ{--shiki-light:#0070C1;--shiki-default:#4FC1FF;--shiki-dark:#4FC1FF}html pre.shiki code .s8xlr, html code.shiki .s8xlr{--shiki-light:#AF00DB;--shiki-default:#C586C0;--shiki-dark:#C586C0}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .sbdoH, html code.shiki .sbdoH{--shiki-light:#A31515;--shiki-default:#CE9178;--shiki-dark:#CE9178}html pre.shiki code .sJj4R, html code.shiki .sJj4R{--shiki-light:#098658;--shiki-default:#B5CEA8;--shiki-dark:#B5CEA8}html pre.shiki code .sD7JJ, html code.shiki .sD7JJ{--shiki-light:#000000FF;--shiki-default:#D4D4D4;--shiki-dark:#D4D4D4}html pre.shiki code .sjcCO, html code.shiki .sjcCO{--shiki-light:#EE0000;--shiki-default:#D7BA7D;--shiki-dark:#D7BA7D}",{"title":5224,"searchDepth":5238,"depth":5238,"links":19204},[19205,19206,19213,19216,19220,19221,19222,19227,19228,19233,19234,19235,19244,19248,19253,19254,19255,19256],{"id":5187,"depth":5238,"text":5188},{"id":6261,"depth":5238,"text":6262,"children":19207},[19208,19209,19210,19211,19212],{"id":6444,"depth":5253,"text":6445},{"id":6817,"depth":5253,"text":6818},{"id":7160,"depth":5253,"text":7161},{"id":7562,"depth":5253,"text":7563},{"id":7775,"depth":5253,"text":7776},{"id":8053,"depth":5238,"text":8054,"children":19214},[19215],{"id":8063,"depth":5253,"text":8064},{"id":9570,"depth":5238,"text":9571,"children":19217},[19218,19219],{"id":9583,"depth":5253,"text":9584},{"id":9688,"depth":5253,"text":9689},{"id":10463,"depth":5238,"text":10464},{"id":11502,"depth":5238,"text":11503},{"id":11807,"depth":5238,"text":11808,"children":19223},[19224,19225,19226],{"id":11817,"depth":5253,"text":11818},{"id":12147,"depth":5253,"text":12148},{"id":12398,"depth":5253,"text":12399},{"id":12702,"depth":5238,"text":12703},{"id":13855,"depth":5238,"text":13856,"children":19229},[19230,19231,19232],{"id":13859,"depth":5253,"text":13860},{"id":14637,"depth":5253,"text":14638},{"id":15072,"depth":5253,"text":15073},{"id":15355,"depth":5238,"text":15356},{"id":16856,"depth":5238,"text":16857},{"id":17467,"depth":5238,"text":17468,"children":19236},[19237,19238,19239,19240,19241,19242,19243],{"id":17474,"depth":5253,"text":17475},{"id":17484,"depth":5253,"text":17485},{"id":17501,"depth":5253,"text":17502},{"id":17508,"depth":5253,"text":17509},{"id":17522,"depth":5253,"text":17523},{"id":17534,"depth":5253,"text":17535},{"id":17541,"depth":5253,"text":17542},{"id":17548,"depth":5238,"text":17549,"children":19245},[19246,19247],{"id":17555,"depth":5253,"text":17556},{"id":17753,"depth":5253,"text":17754},{"id":18126,"depth":5238,"text":18127,"children":19249},[19250,19251,19252],{"id":18133,"depth":5253,"text":18134},{"id":18335,"depth":5253,"text":18336},{"id":18625,"depth":5253,"text":18626},{"id":18822,"depth":5238,"text":18823},{"id":18934,"depth":5238,"text":18935},{"id":19031,"depth":5238,"text":19032},{"id":19134,"depth":5238,"text":19135},"Патерн Observer, створення власних подій, підписка, emit, використання у Node.js","md",null,{},{"title":4250,"description":19257},"uyikPyUg-fT1dWdwl-7-lz6xT3E5mhnFmokbxtxSYTQ",[19264,19266],{"title":4246,"path":4247,"stem":4248,"description":19265,"children":-1},"Практичні патерни асинхронного коду, оптимізація продуктивності",{"title":4254,"path":4255,"stem":4256,"description":19267,"children":-1},"Модуль worker_threads, створення робочих потоків, передача даних, коли використовувати",1790366048878]