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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 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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 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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":4390,"body":5076,"description":19056,"extension":19057,"links":19058,"meta":19059,"navigation":5260,"path":4391,"seo":19060,"stem":4392,"__hash__":19061},"docs\u002F18.web-development\u002F08.nestjs-providers-modules\u002F07.optional-providers.md",{"type":5077,"value":5078,"toc":19000},"minimark",[5079,5083,5088,5127,5130,5134,5154,5166,5191,5198,5428,5438,5493,5506,5583,5590,5597,5677,5679,5683,5699,5705,6043,6046,6100,6106,6161,6163,6167,6177,6185,6196,6508,6525,6532,6539,6542,6982,6992,7000,7010,7415,7419,7426,7790,7801,7809,7811,7815,7825,7829,8366,8369,8390,8394,8397,8867,8870,8983,8986,8988,8992,8995,8999,9005,9011,9392,9396,9401,9406,9815,9819,9824,9829,10254,10258,10263,10270,10332,10337,10340,10542,10550,10552,10556,10564,10568,10581,10691,10709,10713,11372,11375,11539,11628,11632,12354,12357,12658,12670,12672,12676,12679,12853,12857,12974,12976,12980,12983,12987,13618,13622,15072,15076,15310,15314,15902,15906,15911,15962,15967,16021,16026,16070,16077,16079,16083,16086,16090,16093,16104,16324,16328,16337,16640,16644,16649,16942,16946,16949,17658,17662,17668,17888,17892,17907,17968,17971,18089,18098,18100,18104,18614,18616,18620,18690,18694,18929,18931,18937,18940,18977,18996],[5080,5081,4390],"h1",{"id":5082},"опціональні-провайдери-та-декоратор-optional",[5084,5085,5087],"h2",{"id":5086},"короткий-зміст","Короткий зміст",[5089,5090,5091,5095,5103,5106,5109,5112,5115,5118,5121,5124],"ul",{},[5092,5093,5094],"li",{},"Проблема: залежність може бути відсутня у деяких конфігураціях",[5092,5096,5097,5098,5102],{},"Декоратор ",[5099,5100,5101],"code",{},"@Optional()",": позначення залежності як необов'язкової",[5092,5104,5105],{},"Перевірка на null\u002Fundefined перед використанням",[5092,5107,5108],{},"Значення за замовчуванням для відсутніх залежностей",[5092,5110,5111],{},"Сценарії використання: опціональні інтеграції, плагіни",[5092,5113,5114],{},"Приклад: опціональний logger (якщо модуль не імпортовано)",[5092,5116,5117],{},"Приклад: опціональний cache manager",[5092,5119,5120],{},"Комбінування @Optional та @Inject",[5092,5122,5123],{},"Відмінність від обов'язкових залежностей",[5092,5125,5126],{},"Best practices: документувати опціональні залежності",[5128,5129],"hr",{},[5084,5131,5133],{"id":5132},"проблема-залежність-може-бути-відсутня","Проблема: залежність може бути відсутня",[5135,5136,5137,5138,5141,5142,5141,5145,5148,5149,5153],"p",{},"У попередніх лекціях ми розглянули фундаментальні механізми ін'єкції залежностей у NestJS: стандартні провайдери, кастомні провайдери через ",[5099,5139,5140],{},"useValue",", ",[5099,5143,5144],{},"useClass",[5099,5146,5147],{},"useFactory",", та використання токенів для ідентифікації залежностей. У всіх цих прикладах ми виходили з припущення, що ",[5150,5151,5152],"strong",{},"кожна залежність, яку запитує сервіс, обов'язково присутня"," у DI-контейнері.",[5135,5155,5156,5157,5160,5161,5165],{},"Проте у реальних застосунках часто виникають ситуації, коли залежність є ",[5150,5158,5159],{},"опціональною"," (",[5162,5163,5164],"em",{},"optional",") — тобто її наявність або відсутність залежить від конфігурації, середовища виконання або підключених модулів. Наприклад:",[5089,5167,5168,5174,5179,5185],{},[5092,5169,5170,5173],{},[5150,5171,5172],{},"Логування",": у розробці ви можете використовувати детальний консольний логер, а у продакшні — інтеграцію з зовнішнім сервісом моніторингу (Sentry, Datadog). Якщо модуль логування не підключено, застосунок має продовжувати працювати без помилок.",[5092,5175,5176,5178],{},[5150,5177,942],{},": у невеликих застосунках або під час тестування кеш може бути відсутнім, і сервіси мають працювати напряму з базою даних.",[5092,5180,5181,5184],{},[5150,5182,5183],{},"Зовнішні інтеграції",": оплата, відправка SMS, аналітика — ці функції можуть бути вимкнені у тестовому або staging-середовищі.",[5092,5186,5187,5190],{},[5150,5188,5189],{},"Плагіни та розширення",": у модульній архітектурі певні функції можуть бути надані опціональними модулями, які адміністратор може вмикати або вимикати.",[5135,5192,5193,5194,5197],{},"Розглянемо проблемну ситуацію. Припустімо, у вас є сервіс користувачів, який логує операції через ",[5099,5195,5196],{},"LoggerService",":",[5199,5200,5205],"pre",{"className":5201,"code":5202,"language":5203,"meta":5204,"style":5204},"language-typescript shiki shiki-themes light-plus dark-plus dark-plus","import { Injectable } from '@nestjs\u002Fcommon';\nimport { LoggerService } from '.\u002Flogger.service';\n\n@Injectable()\nexport class UsersService {\n  constructor(private readonly logger: LoggerService) {}\n\n  async createUser(userData: any) {\n    this.logger.log(`Creating user: ${userData.email}`);\n    \u002F\u002F Логіка створення користувача\n    return { id: 1, ...userData };\n  }\n}\n","typescript","",[5099,5206,5207,5237,5255,5262,5274,5291,5317,5322,5344,5386,5393,5416,5422],{"__ignoreMap":5204},[5208,5209,5212,5216,5220,5224,5227,5230,5234],"span",{"class":5210,"line":5211},"line",1,[5208,5213,5215],{"class":5214},"s8xlr","import",[5208,5217,5219],{"class":5218},"sHH4Y"," { ",[5208,5221,5223],{"class":5222},"siwwj","Injectable",[5208,5225,5226],{"class":5218}," } ",[5208,5228,5229],{"class":5214},"from",[5208,5231,5233],{"class":5232},"sbdoH"," '@nestjs\u002Fcommon'",[5208,5235,5236],{"class":5218},";\n",[5208,5238,5240,5242,5244,5246,5248,5250,5253],{"class":5210,"line":5239},2,[5208,5241,5215],{"class":5214},[5208,5243,5219],{"class":5218},[5208,5245,5196],{"class":5222},[5208,5247,5226],{"class":5218},[5208,5249,5229],{"class":5214},[5208,5251,5252],{"class":5232}," '.\u002Flogger.service'",[5208,5254,5236],{"class":5218},[5208,5256,5258],{"class":5210,"line":5257},3,[5208,5259,5261],{"emptyLinePlaceholder":5260},true,"\n",[5208,5263,5265,5268,5271],{"class":5210,"line":5264},4,[5208,5266,5267],{"class":5218},"@",[5208,5269,5223],{"class":5270},"s8Opu",[5208,5272,5273],{"class":5218},"()\n",[5208,5275,5277,5280,5284,5288],{"class":5210,"line":5276},5,[5208,5278,5279],{"class":5214},"export",[5208,5281,5283],{"class":5282},"su1O8"," class",[5208,5285,5287],{"class":5286},"sN1BT"," UsersService",[5208,5289,5290],{"class":5218}," {\n",[5208,5292,5294,5297,5300,5303,5306,5309,5312,5314],{"class":5210,"line":5293},6,[5208,5295,5296],{"class":5282},"  constructor",[5208,5298,5299],{"class":5218},"(",[5208,5301,5302],{"class":5282},"private",[5208,5304,5305],{"class":5282}," readonly",[5208,5307,5308],{"class":5222}," logger",[5208,5310,5311],{"class":5218},": ",[5208,5313,5196],{"class":5286},[5208,5315,5316],{"class":5218},") {}\n",[5208,5318,5320],{"class":5210,"line":5319},7,[5208,5321,5261],{"emptyLinePlaceholder":5260},[5208,5323,5325,5328,5331,5333,5336,5338,5341],{"class":5210,"line":5324},8,[5208,5326,5327],{"class":5282},"  async",[5208,5329,5330],{"class":5270}," createUser",[5208,5332,5299],{"class":5218},[5208,5334,5335],{"class":5222},"userData",[5208,5337,5311],{"class":5218},[5208,5339,5340],{"class":5286},"any",[5208,5342,5343],{"class":5218},") {\n",[5208,5345,5347,5350,5353,5356,5358,5361,5363,5366,5369,5371,5374,5377,5380,5383],{"class":5210,"line":5346},9,[5208,5348,5349],{"class":5282},"    this",[5208,5351,5352],{"class":5218},".",[5208,5354,5355],{"class":5222},"logger",[5208,5357,5352],{"class":5218},[5208,5359,5360],{"class":5270},"log",[5208,5362,5299],{"class":5218},[5208,5364,5365],{"class":5232},"`Creating user: ",[5208,5367,5368],{"class":5282},"${",[5208,5370,5335],{"class":5222},[5208,5372,5352],{"class":5373},"sD7JJ",[5208,5375,5376],{"class":5222},"email",[5208,5378,5379],{"class":5282},"}",[5208,5381,5382],{"class":5232},"`",[5208,5384,5385],{"class":5218},");\n",[5208,5387,5389],{"class":5210,"line":5388},10,[5208,5390,5392],{"class":5391},"spJ8K","    \u002F\u002F Логіка створення користувача\n",[5208,5394,5396,5399,5401,5404,5408,5411,5413],{"class":5210,"line":5395},11,[5208,5397,5398],{"class":5214},"    return",[5208,5400,5219],{"class":5218},[5208,5402,5403],{"class":5222},"id:",[5208,5405,5407],{"class":5406},"sJj4R"," 1",[5208,5409,5410],{"class":5218},", ...",[5208,5412,5335],{"class":5222},[5208,5414,5415],{"class":5218}," };\n",[5208,5417,5419],{"class":5210,"line":5418},12,[5208,5420,5421],{"class":5218},"  }\n",[5208,5423,5425],{"class":5210,"line":5424},13,[5208,5426,5427],{"class":5218},"}\n",[5135,5429,5430,5431,5434,5435,5437],{},"Цей код працює ідеально, ",[5150,5432,5433],{},"доки"," ",[5099,5436,5196],{}," зареєстрований як провайдер у модулі. Але що станеться, якщо ви запускаєте застосунок у тестовому режимі без модуля логування?",[5199,5439,5441],{"className":5201,"code":5440,"language":5203,"meta":5204,"style":5204},"@Module({\n  providers: [\n    UsersService\n    \u002F\u002F LoggerService відсутній!\n  ]\n})\nexport class UsersModule {}\n",[5099,5442,5443,5453,5461,5466,5471,5476,5481],{"__ignoreMap":5204},[5208,5444,5445,5447,5450],{"class":5210,"line":5211},[5208,5446,5267],{"class":5218},[5208,5448,5449],{"class":5270},"Module",[5208,5451,5452],{"class":5218},"({\n",[5208,5454,5455,5458],{"class":5210,"line":5239},[5208,5456,5457],{"class":5222},"  providers:",[5208,5459,5460],{"class":5218}," [\n",[5208,5462,5463],{"class":5210,"line":5257},[5208,5464,5465],{"class":5222},"    UsersService\n",[5208,5467,5468],{"class":5210,"line":5264},[5208,5469,5470],{"class":5391},"    \u002F\u002F LoggerService відсутній!\n",[5208,5472,5473],{"class":5210,"line":5276},[5208,5474,5475],{"class":5218},"  ]\n",[5208,5477,5478],{"class":5210,"line":5293},[5208,5479,5480],{"class":5218},"})\n",[5208,5482,5483,5485,5487,5490],{"class":5210,"line":5319},[5208,5484,5279],{"class":5214},[5208,5486,5283],{"class":5282},[5208,5488,5489],{"class":5286}," UsersModule",[5208,5491,5492],{"class":5218}," {}\n",[5135,5494,5495,5496,5499,5500,5502,5503,5197],{},"NestJS спробує створити екземпляр ",[5099,5497,5498],{},"UsersService",", побачить залежність ",[5099,5501,5196],{}," у конструкторі, але не зможе знайти відповідний провайдер у DI-контейнері. Результат — ",[5150,5504,5505],{},"критична помилка під час запуску застосунку",[5507,5508,5511,5524,5527,5536,5545,5555,5558,5565,5573,5576],"terminal-preview",{":cursor":5509,"title":5510},"false","npm run start:dev",[5512,5513,5515,5434,5520],"div",{"className":5514},[5210],[5208,5516,5519],{"className":5517},[5518],"opacity-40","$",[5150,5521,5510],{"className":5522},[5523],"font-bold",[5512,5525],{"className":5526},[5210],[5512,5528,5530,5535],{"className":5529},[5210],[5208,5531,5534],{"className":5532},[5533,5523],"text-rose-400","Error:"," Nest can't resolve dependencies of the UsersService (?). ",[5512,5537,5539,5540,5544],{"className":5538},[5210],"Please make sure that the argument ",[5208,5541,5196],{"className":5542},[5543],"text-yellow-400"," at index [0] is available",[5512,5546,5548,5549,5554],{"className":5547},[5210],"in the ",[5208,5550,5553],{"className":5551},[5552],"text-blue-400","UsersModule"," context.",[5512,5556],{"className":5557},[5210],[5512,5559,5561,5562,5352],{"className":5560},[5210],"Hint: This error means that Nest cannot find a provider for ",[5208,5563,5196],{"className":5564},[5543,5523],[5512,5566,5568,5569,5572],{"className":5567},[5210],"Make sure this provider is registered in ",[5208,5570,5553],{"className":5571},[5552,5523]," or imported from another module.",[5512,5574],{"className":5575},[5210],[5512,5577,5579],{"className":5578},[5210],[5208,5580,5582],{"className":5581},[5533,5523],"Application failed to start.",[5135,5584,5585,5586,5589],{},"Це типова ситуація жорсткої залежності (",[5162,5587,5588],{},"hard dependency","): застосунок відмовляється запускатися, якщо будь-яка із залежностей відсутня. У багатьох випадках це правильна поведінка — якщо сервіс користувачів не може працювати без бази даних, краще отримати помилку відразу, ніж дозволити застосунку запуститися у невизначеному стані.",[5135,5591,5592,5593,5596],{},"Проте для ",[5150,5594,5595],{},"другорядних залежностей",", таких як логування або кешування, така поведінка надмірно сувора. Ми хочемо, щоб сервіс міг працювати і без логера, просто пропускаючи виклики логування, якщо логер відсутній.",[5598,5599,5600,5635],"card-group",{},[5601,5602,5605],"card",{"icon":5603,"title":5604},"i-lucide-target","🎯 Мета лекції",[5089,5606,5607,5610,5616,5619,5622,5625],{},[5092,5608,5609],{},"Зрозуміти концепцію опціональних залежностей у системі DI",[5092,5611,5612,5613,5615],{},"Опанувати використання декоратора ",[5099,5614,5101],{}," для позначення необов'язкових залежностей",[5092,5617,5618],{},"Навчитися безпечно працювати з потенційно відсутніми провайдерами",[5092,5620,5621],{},"Розробити стратегії обробки відсутніх залежностей через значення за замовчуванням",[5092,5623,5624],{},"Застосовувати опціональні залежності для плагінів та інтеграцій",[5092,5626,5627,5628,5630,5631,5634],{},"Комбінувати ",[5099,5629,5101],{}," з ",[5099,5632,5633],{},"@Inject()"," для токенізованих провайдерів",[5601,5636,5638],{"icon":4574,"title":5637},"🔑 Ключові терміни",[5089,5639,5640,5646,5652,5657,5671],{},[5092,5641,5642,5645],{},[5150,5643,5644],{},"Optional Dependency"," — необов'язкова залежність, відсутність якої не блокує створення сервісу",[5092,5647,5648,5651],{},[5150,5649,5650],{},"Hard Dependency"," — обов'язкова залежність, без якої сервіс не може функціонувати",[5092,5653,5654,5656],{},[5150,5655,5101],{}," — декоратор NestJS для позначення параметра конструктора як опціонального",[5092,5658,5659,5662,5663,5666,5667,5670],{},[5150,5660,5661],{},"Null Safety"," — перевірка на ",[5099,5664,5665],{},"null"," або ",[5099,5668,5669],{},"undefined"," перед використанням опціональної залежності",[5092,5672,5673,5676],{},[5150,5674,5675],{},"Fallback Value"," — значення за замовчуванням, яке використовується при відсутності залежності",[5128,5678],{},[5084,5680,5682],{"id":5681},"декоратор-optional-явне-позначення-опціональної-залежності","Декоратор @Optional(): явне позначення опціональної залежності",[5135,5684,5685,5686,5690,5691,5666,5696,5698],{},"NestJS надає спеціальний декоратор ",[5150,5687,5688],{},[5099,5689,5101],{},", який повідомляє DI-контейнеру, що залежність є необов'язковою. Якщо провайдер з відповідним токеном не знайдено, замість викидання помилки контейнер просто ",[5150,5692,5693,5694],{},"ін'єктує ",[5099,5695,5665],{},[5099,5697,5669],{}," (залежно від реалізації).",[5135,5700,5701,5702,5704],{},"Синтаксис декоратора надзвичайно простий — достатньо додати ",[5099,5703,5101],{}," перед параметром конструктора:",[5199,5706,5708],{"className":5201,"code":5707,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional } from '@nestjs\u002Fcommon';\nimport { LoggerService } from '.\u002Flogger.service';\n\n@Injectable()\nexport class UsersService {\n  constructor(\n    @Optional() private readonly logger?: LoggerService\n  ) {\n    if (this.logger) {\n      this.logger.log('UsersService initialized with logger');\n    } else {\n      console.log('UsersService initialized without logger (fallback mode)');\n    }\n  }\n\n  async createUser(userData: any) {\n    \u002F\u002F Безпечний виклик: перевірка на існування перед використанням\n    this.logger?.log(`Creating user: ${userData.email}`);\n\n    \u002F\u002F Основна логіка продовжує працювати незалежно від наявності логера\n    return { id: 1, ...userData };\n  }\n\n  async deleteUser(userId: number) {\n    this.logger?.log(`Deleting user with ID: ${userId}`);\n    \n    \u002F\u002F Логіка видалення\n  }\n}\n",[5099,5709,5710,5731,5747,5751,5759,5769,5776,5798,5803,5819,5839,5849,5865,5870,5875,5880,5897,5903,5935,5940,5946,5963,5968,5973,5993,6021,6027,6033,6038],{"__ignoreMap":5204},[5208,5711,5712,5714,5716,5718,5720,5723,5725,5727,5729],{"class":5210,"line":5211},[5208,5713,5215],{"class":5214},[5208,5715,5219],{"class":5218},[5208,5717,5223],{"class":5222},[5208,5719,5141],{"class":5218},[5208,5721,5722],{"class":5222},"Optional",[5208,5724,5226],{"class":5218},[5208,5726,5229],{"class":5214},[5208,5728,5233],{"class":5232},[5208,5730,5236],{"class":5218},[5208,5732,5733,5735,5737,5739,5741,5743,5745],{"class":5210,"line":5239},[5208,5734,5215],{"class":5214},[5208,5736,5219],{"class":5218},[5208,5738,5196],{"class":5222},[5208,5740,5226],{"class":5218},[5208,5742,5229],{"class":5214},[5208,5744,5252],{"class":5232},[5208,5746,5236],{"class":5218},[5208,5748,5749],{"class":5210,"line":5257},[5208,5750,5261],{"emptyLinePlaceholder":5260},[5208,5752,5753,5755,5757],{"class":5210,"line":5264},[5208,5754,5267],{"class":5218},[5208,5756,5223],{"class":5270},[5208,5758,5273],{"class":5218},[5208,5760,5761,5763,5765,5767],{"class":5210,"line":5276},[5208,5762,5279],{"class":5214},[5208,5764,5283],{"class":5282},[5208,5766,5287],{"class":5286},[5208,5768,5290],{"class":5218},[5208,5770,5771,5773],{"class":5210,"line":5293},[5208,5772,5296],{"class":5282},[5208,5774,5775],{"class":5218},"(\n",[5208,5777,5778,5781,5783,5786,5788,5790,5792,5795],{"class":5210,"line":5319},[5208,5779,5780],{"class":5218},"    @",[5208,5782,5722],{"class":5270},[5208,5784,5785],{"class":5218},"() ",[5208,5787,5302],{"class":5282},[5208,5789,5305],{"class":5282},[5208,5791,5308],{"class":5222},[5208,5793,5794],{"class":5218},"?: ",[5208,5796,5797],{"class":5286},"LoggerService\n",[5208,5799,5800],{"class":5210,"line":5324},[5208,5801,5802],{"class":5218},"  ) {\n",[5208,5804,5805,5808,5810,5813,5815,5817],{"class":5210,"line":5346},[5208,5806,5807],{"class":5214},"    if",[5208,5809,5160],{"class":5218},[5208,5811,5812],{"class":5282},"this",[5208,5814,5352],{"class":5218},[5208,5816,5355],{"class":5222},[5208,5818,5343],{"class":5218},[5208,5820,5821,5824,5826,5828,5830,5832,5834,5837],{"class":5210,"line":5388},[5208,5822,5823],{"class":5282},"      this",[5208,5825,5352],{"class":5218},[5208,5827,5355],{"class":5222},[5208,5829,5352],{"class":5218},[5208,5831,5360],{"class":5270},[5208,5833,5299],{"class":5218},[5208,5835,5836],{"class":5232},"'UsersService initialized with logger'",[5208,5838,5385],{"class":5218},[5208,5840,5841,5844,5847],{"class":5210,"line":5395},[5208,5842,5843],{"class":5218},"    } ",[5208,5845,5846],{"class":5214},"else",[5208,5848,5290],{"class":5218},[5208,5850,5851,5854,5856,5858,5860,5863],{"class":5210,"line":5418},[5208,5852,5853],{"class":5222},"      console",[5208,5855,5352],{"class":5218},[5208,5857,5360],{"class":5270},[5208,5859,5299],{"class":5218},[5208,5861,5862],{"class":5232},"'UsersService initialized without logger (fallback mode)'",[5208,5864,5385],{"class":5218},[5208,5866,5867],{"class":5210,"line":5424},[5208,5868,5869],{"class":5218},"    }\n",[5208,5871,5873],{"class":5210,"line":5872},14,[5208,5874,5421],{"class":5218},[5208,5876,5878],{"class":5210,"line":5877},15,[5208,5879,5261],{"emptyLinePlaceholder":5260},[5208,5881,5883,5885,5887,5889,5891,5893,5895],{"class":5210,"line":5882},16,[5208,5884,5327],{"class":5282},[5208,5886,5330],{"class":5270},[5208,5888,5299],{"class":5218},[5208,5890,5335],{"class":5222},[5208,5892,5311],{"class":5218},[5208,5894,5340],{"class":5286},[5208,5896,5343],{"class":5218},[5208,5898,5900],{"class":5210,"line":5899},17,[5208,5901,5902],{"class":5391},"    \u002F\u002F Безпечний виклик: перевірка на існування перед використанням\n",[5208,5904,5906,5908,5910,5912,5915,5917,5919,5921,5923,5925,5927,5929,5931,5933],{"class":5210,"line":5905},18,[5208,5907,5349],{"class":5282},[5208,5909,5352],{"class":5218},[5208,5911,5355],{"class":5222},[5208,5913,5914],{"class":5218},"?.",[5208,5916,5360],{"class":5270},[5208,5918,5299],{"class":5218},[5208,5920,5365],{"class":5232},[5208,5922,5368],{"class":5282},[5208,5924,5335],{"class":5222},[5208,5926,5352],{"class":5373},[5208,5928,5376],{"class":5222},[5208,5930,5379],{"class":5282},[5208,5932,5382],{"class":5232},[5208,5934,5385],{"class":5218},[5208,5936,5938],{"class":5210,"line":5937},19,[5208,5939,5261],{"emptyLinePlaceholder":5260},[5208,5941,5943],{"class":5210,"line":5942},20,[5208,5944,5945],{"class":5391},"    \u002F\u002F Основна логіка продовжує працювати незалежно від наявності логера\n",[5208,5947,5949,5951,5953,5955,5957,5959,5961],{"class":5210,"line":5948},21,[5208,5950,5398],{"class":5214},[5208,5952,5219],{"class":5218},[5208,5954,5403],{"class":5222},[5208,5956,5407],{"class":5406},[5208,5958,5410],{"class":5218},[5208,5960,5335],{"class":5222},[5208,5962,5415],{"class":5218},[5208,5964,5966],{"class":5210,"line":5965},22,[5208,5967,5421],{"class":5218},[5208,5969,5971],{"class":5210,"line":5970},23,[5208,5972,5261],{"emptyLinePlaceholder":5260},[5208,5974,5976,5978,5981,5983,5986,5988,5991],{"class":5210,"line":5975},24,[5208,5977,5327],{"class":5282},[5208,5979,5980],{"class":5270}," deleteUser",[5208,5982,5299],{"class":5218},[5208,5984,5985],{"class":5222},"userId",[5208,5987,5311],{"class":5218},[5208,5989,5990],{"class":5286},"number",[5208,5992,5343],{"class":5218},[5208,5994,5996,5998,6000,6002,6004,6006,6008,6011,6013,6015,6017,6019],{"class":5210,"line":5995},25,[5208,5997,5349],{"class":5282},[5208,5999,5352],{"class":5218},[5208,6001,5355],{"class":5222},[5208,6003,5914],{"class":5218},[5208,6005,5360],{"class":5270},[5208,6007,5299],{"class":5218},[5208,6009,6010],{"class":5232},"`Deleting user with ID: ",[5208,6012,5368],{"class":5282},[5208,6014,5985],{"class":5222},[5208,6016,5379],{"class":5282},[5208,6018,5382],{"class":5232},[5208,6020,5385],{"class":5218},[5208,6022,6024],{"class":5210,"line":6023},26,[5208,6025,6026],{"class":5218},"    \n",[5208,6028,6030],{"class":5210,"line":6029},27,[5208,6031,6032],{"class":5391},"    \u002F\u002F Логіка видалення\n",[5208,6034,6036],{"class":5210,"line":6035},28,[5208,6037,5421],{"class":5218},[5208,6039,6041],{"class":5210,"line":6040},29,[5208,6042,5427],{"class":5218},[5135,6044,6045],{},"Зверніть увагу на кілька ключових моментів у цьому коді:",[6047,6048,6049,6059,6079,6085],"ol",{},[5092,6050,6051,6055,6056,6058],{},[5150,6052,5097,6053],{},[5099,6054,5101],{}," повідомляє NestJS, що відсутність ",[5099,6057,5196],{}," не є критичною помилкою",[5092,6060,6061,6066,6067,6070,6071,5666,6073,6075,6076,6078],{},[5150,6062,6063,6064],{},"Оператор optional chaining ",[5099,6065,5914],{}," забезпечує безпечний виклик методів логера: якщо ",[5099,6068,6069],{},"this.logger"," є ",[5099,6072,5665],{},[5099,6074,5669],{},", вираз просто поверне ",[5099,6077,5669],{}," без викидання помилки",[5092,6080,6081,6084],{},[5150,6082,6083],{},"Перевірка у конструкторі"," дозволяє зафіксувати режим роботи сервісу — з логером чи без нього",[5092,6086,6087,6093,6094,6097,6098],{},[5150,6088,6089,6090],{},"TypeScript optional parameter ",[5099,6091,6092],{},"?"," у сигнатурі ",[5099,6095,6096],{},"logger?: LoggerService"," відображає, що це поле може бути ",[5099,6099,5669],{},[5135,6101,6102,6103,6105],{},"Тепер застосунок успішно запуститься, навіть якщо ",[5099,6104,5196],{}," відсутній у модулі:",[5507,6107,6108,6117,6120,6128,6135,6148],{":cursor":5509,"title":5510},[5512,6109,6111,5434,6114],{"className":6110},[5210],[5208,6112,5519],{"className":6113},[5518],[5150,6115,5510],{"className":6116},[5523],[5512,6118],{"className":6119},[5210],[5512,6121,6123,6127],{"className":6122},[5210],[5208,6124,6126],{"className":6125},[5552,5523],"INFO"," [NestFactory] Starting Nest application...",[5512,6129,6131,6134],{"className":6130},[5210],[5208,6132,6126],{"className":6133},[5552,5523]," [InstanceLoader] UsersModule dependencies initialized",[5512,6136,6138,6142,6143],{"className":6137},[5210],[5208,6139,6141],{"className":6140},[5543],"LOG"," UsersService initialized without logger ",[5208,6144,6147],{"className":6145},[6146],"opacity-60","(fallback mode)",[5512,6149,6151,6156,6157],{"className":6150},[5210],[5208,6152,6155],{"className":6153},[6154,5523],"text-green-400","SUCCESS"," Application is running on: ",[5208,6158,6160],{"className":6159},[5552,5523],"http:\u002F\u002Flocalhost:3000",[5128,6162],{},[5084,6164,6166],{"id":6165},"перевірка-на-nullundefined-паттерни-безпечного-використання","Перевірка на null\u002Fundefined: паттерни безпечного використання",[5135,6168,6169,6170,6172,6173,6176],{},"Позначення залежності як опціональної через ",[5099,6171,5101],{}," — це лише перший крок. Важливо розуміти, що тепер ",[5150,6174,6175],{},"ви несете відповідальність"," за перевірку наявності залежності перед її використанням. У TypeScript існує кілька паттернів для безпечної роботи з потенційно відсутніми значеннями.",[6178,6179,6181,6182,6184],"h3",{"id":6180},"паттерн-1-optional-chaining","Паттерн 1: Optional Chaining (",[5099,6183,5914],{},")",[5135,6186,6187,6188,6190,6191,5666,6193,6195],{},"Optional chaining — найелегантніший та найбільш рекомендований спосіб роботи з опціональними залежностями у TypeScript. Оператор ",[5099,6189,5914],{}," автоматично перевіряє, чи не є значення ",[5099,6192,5665],{},[5099,6194,5669],{},", перед доступом до властивості або викликом методу:",[5199,6197,6199],{"className":5201,"code":6198,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional } from '@nestjs\u002Fcommon';\nimport { LoggerService } from '.\u002Flogger.service';\n\n@Injectable()\nexport class OrdersService {\n  constructor(@Optional() private readonly logger?: LoggerService) {}\n\n  async createOrder(orderData: any) {\n    \u002F\u002F Лаконічний та безпечний виклик\n    this.logger?.log(`Creating order for user ${orderData.userId}`);\n    \n    \u002F\u002F Основна бізнес-логіка\n    const order = { id: Date.now(), ...orderData, status: 'pending' };\n    \n    this.logger?.log(`Order created with ID: ${order.id}`);\n    return order;\n  }\n\n  async cancelOrder(orderId: number) {\n    \u002F\u002F Опціональний виклик методу з параметрами\n    this.logger?.warn(`Cancelling order ${orderId}`);\n    \n    \u002F\u002F Логіка скасування\n  }\n}\n",[5099,6200,6201,6221,6237,6241,6249,6260,6283,6287,6305,6310,6341,6345,6350,6387,6391,6424,6432,6436,6440,6458,6463,6491,6495,6500,6504],{"__ignoreMap":5204},[5208,6202,6203,6205,6207,6209,6211,6213,6215,6217,6219],{"class":5210,"line":5211},[5208,6204,5215],{"class":5214},[5208,6206,5219],{"class":5218},[5208,6208,5223],{"class":5222},[5208,6210,5141],{"class":5218},[5208,6212,5722],{"class":5222},[5208,6214,5226],{"class":5218},[5208,6216,5229],{"class":5214},[5208,6218,5233],{"class":5232},[5208,6220,5236],{"class":5218},[5208,6222,6223,6225,6227,6229,6231,6233,6235],{"class":5210,"line":5239},[5208,6224,5215],{"class":5214},[5208,6226,5219],{"class":5218},[5208,6228,5196],{"class":5222},[5208,6230,5226],{"class":5218},[5208,6232,5229],{"class":5214},[5208,6234,5252],{"class":5232},[5208,6236,5236],{"class":5218},[5208,6238,6239],{"class":5210,"line":5257},[5208,6240,5261],{"emptyLinePlaceholder":5260},[5208,6242,6243,6245,6247],{"class":5210,"line":5264},[5208,6244,5267],{"class":5218},[5208,6246,5223],{"class":5270},[5208,6248,5273],{"class":5218},[5208,6250,6251,6253,6255,6258],{"class":5210,"line":5276},[5208,6252,5279],{"class":5214},[5208,6254,5283],{"class":5282},[5208,6256,6257],{"class":5286}," OrdersService",[5208,6259,5290],{"class":5218},[5208,6261,6262,6264,6267,6269,6271,6273,6275,6277,6279,6281],{"class":5210,"line":5293},[5208,6263,5296],{"class":5282},[5208,6265,6266],{"class":5218},"(@",[5208,6268,5722],{"class":5270},[5208,6270,5785],{"class":5218},[5208,6272,5302],{"class":5282},[5208,6274,5305],{"class":5282},[5208,6276,5308],{"class":5222},[5208,6278,5794],{"class":5218},[5208,6280,5196],{"class":5286},[5208,6282,5316],{"class":5218},[5208,6284,6285],{"class":5210,"line":5319},[5208,6286,5261],{"emptyLinePlaceholder":5260},[5208,6288,6289,6291,6294,6296,6299,6301,6303],{"class":5210,"line":5324},[5208,6290,5327],{"class":5282},[5208,6292,6293],{"class":5270}," createOrder",[5208,6295,5299],{"class":5218},[5208,6297,6298],{"class":5222},"orderData",[5208,6300,5311],{"class":5218},[5208,6302,5340],{"class":5286},[5208,6304,5343],{"class":5218},[5208,6306,6307],{"class":5210,"line":5346},[5208,6308,6309],{"class":5391},"    \u002F\u002F Лаконічний та безпечний виклик\n",[5208,6311,6312,6314,6316,6318,6320,6322,6324,6327,6329,6331,6333,6335,6337,6339],{"class":5210,"line":5388},[5208,6313,5349],{"class":5282},[5208,6315,5352],{"class":5218},[5208,6317,5355],{"class":5222},[5208,6319,5914],{"class":5218},[5208,6321,5360],{"class":5270},[5208,6323,5299],{"class":5218},[5208,6325,6326],{"class":5232},"`Creating order for user ",[5208,6328,5368],{"class":5282},[5208,6330,6298],{"class":5222},[5208,6332,5352],{"class":5373},[5208,6334,5985],{"class":5222},[5208,6336,5379],{"class":5282},[5208,6338,5382],{"class":5232},[5208,6340,5385],{"class":5218},[5208,6342,6343],{"class":5210,"line":5395},[5208,6344,6026],{"class":5218},[5208,6346,6347],{"class":5210,"line":5418},[5208,6348,6349],{"class":5391},"    \u002F\u002F Основна бізнес-логіка\n",[5208,6351,6352,6355,6359,6362,6364,6367,6369,6372,6375,6377,6379,6382,6385],{"class":5210,"line":5424},[5208,6353,6354],{"class":5282},"    const",[5208,6356,6358],{"class":6357},"s-QsJ"," order",[5208,6360,6361],{"class":5218}," = { ",[5208,6363,5403],{"class":5222},[5208,6365,6366],{"class":5222}," Date",[5208,6368,5352],{"class":5218},[5208,6370,6371],{"class":5270},"now",[5208,6373,6374],{"class":5218},"(), ...",[5208,6376,6298],{"class":5222},[5208,6378,5141],{"class":5218},[5208,6380,6381],{"class":5222},"status:",[5208,6383,6384],{"class":5232}," 'pending'",[5208,6386,5415],{"class":5218},[5208,6388,6389],{"class":5210,"line":5872},[5208,6390,6026],{"class":5218},[5208,6392,6393,6395,6397,6399,6401,6403,6405,6408,6410,6413,6415,6418,6420,6422],{"class":5210,"line":5877},[5208,6394,5349],{"class":5282},[5208,6396,5352],{"class":5218},[5208,6398,5355],{"class":5222},[5208,6400,5914],{"class":5218},[5208,6402,5360],{"class":5270},[5208,6404,5299],{"class":5218},[5208,6406,6407],{"class":5232},"`Order created with ID: ",[5208,6409,5368],{"class":5282},[5208,6411,6412],{"class":5222},"order",[5208,6414,5352],{"class":5373},[5208,6416,6417],{"class":5222},"id",[5208,6419,5379],{"class":5282},[5208,6421,5382],{"class":5232},[5208,6423,5385],{"class":5218},[5208,6425,6426,6428,6430],{"class":5210,"line":5882},[5208,6427,5398],{"class":5214},[5208,6429,6358],{"class":5222},[5208,6431,5236],{"class":5218},[5208,6433,6434],{"class":5210,"line":5899},[5208,6435,5421],{"class":5218},[5208,6437,6438],{"class":5210,"line":5905},[5208,6439,5261],{"emptyLinePlaceholder":5260},[5208,6441,6442,6444,6447,6449,6452,6454,6456],{"class":5210,"line":5937},[5208,6443,5327],{"class":5282},[5208,6445,6446],{"class":5270}," cancelOrder",[5208,6448,5299],{"class":5218},[5208,6450,6451],{"class":5222},"orderId",[5208,6453,5311],{"class":5218},[5208,6455,5990],{"class":5286},[5208,6457,5343],{"class":5218},[5208,6459,6460],{"class":5210,"line":5942},[5208,6461,6462],{"class":5391},"    \u002F\u002F Опціональний виклик методу з параметрами\n",[5208,6464,6465,6467,6469,6471,6473,6476,6478,6481,6483,6485,6487,6489],{"class":5210,"line":5948},[5208,6466,5349],{"class":5282},[5208,6468,5352],{"class":5218},[5208,6470,5355],{"class":5222},[5208,6472,5914],{"class":5218},[5208,6474,6475],{"class":5270},"warn",[5208,6477,5299],{"class":5218},[5208,6479,6480],{"class":5232},"`Cancelling order ",[5208,6482,5368],{"class":5282},[5208,6484,6451],{"class":5222},[5208,6486,5379],{"class":5282},[5208,6488,5382],{"class":5232},[5208,6490,5385],{"class":5218},[5208,6492,6493],{"class":5210,"line":5965},[5208,6494,6026],{"class":5218},[5208,6496,6497],{"class":5210,"line":5970},[5208,6498,6499],{"class":5391},"    \u002F\u002F Логіка скасування\n",[5208,6501,6502],{"class":5210,"line":5975},[5208,6503,5421],{"class":5218},[5208,6505,6506],{"class":5210,"line":5995},[5208,6507,5427],{"class":5218},[5135,6509,6510,6511,6070,6513,5666,6515,6517,6518,6521,6522,6524],{},"Якщо ",[5099,6512,6069],{},[5099,6514,5665],{},[5099,6516,5669],{},", вираз ",[5099,6519,6520],{},"this.logger?.log(...)"," просто поверне ",[5099,6523,5669],{}," без викидання помилки. Це дозволяє коду продовжувати виконання незалежно від наявності логера.",[6526,6527,6528,6529,6531],"tip",{},"Optional chaining (",[5099,6530,5914],{},") — ідіоматичний спосіб роботи з опціональними залежностями у сучасному TypeScript. Використовуйте його для всіх викликів методів опціональних провайдерів.",[6178,6533,6535,6536],{"id":6534},"паттерн-2-явна-перевірка-через-if","Паттерн 2: Явна перевірка через ",[5099,6537,6538],{},"if",[5135,6540,6541],{},"У випадках, коли ви хочете виконати складну логіку тільки при наявності залежності, використовуйте явну умовну конструкцію:",[5199,6543,6545],{"className":5201,"code":6544,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional } from '@nestjs\u002Fcommon';\nimport { CacheManager } from '.\u002Fcache.manager';\n\n@Injectable()\nexport class ProductsService {\n  constructor(@Optional() private readonly cache?: CacheManager) {}\n\n  async getProduct(productId: number) {\n    \u002F\u002F Спочатку перевіряємо кеш (якщо він доступний)\n    if (this.cache) {\n      const cached = await this.cache.get(`product:${productId}`);\n      if (cached) {\n        console.log(`Cache hit for product ${productId}`);\n        return cached;\n      }\n    }\n\n    \u002F\u002F Якщо кешу немає або дані відсутні — йдемо в БД\n    console.log(`Cache miss or unavailable, fetching from DB`);\n    const product = await this.fetchFromDatabase(productId);\n\n    \u002F\u002F Зберігаємо у кеш (якщо він доступний)\n    if (this.cache) {\n      await this.cache.set(`product:${productId}`, product, { ttl: 3600 });\n    }\n\n    return product;\n  }\n\n  private async fetchFromDatabase(id: number) {\n    \u002F\u002F Симуляція запиту до БД\n    return { id, name: `Product ${id}`, price: 99.99 };\n  }\n}\n",[5099,6546,6547,6567,6585,6589,6597,6608,6631,6635,6653,6658,6673,6714,6726,6750,6759,6764,6768,6772,6777,6793,6817,6821,6826,6840,6885,6889,6893,6901,6905,6909,6931,6937,6972,6977],{"__ignoreMap":5204},[5208,6548,6549,6551,6553,6555,6557,6559,6561,6563,6565],{"class":5210,"line":5211},[5208,6550,5215],{"class":5214},[5208,6552,5219],{"class":5218},[5208,6554,5223],{"class":5222},[5208,6556,5141],{"class":5218},[5208,6558,5722],{"class":5222},[5208,6560,5226],{"class":5218},[5208,6562,5229],{"class":5214},[5208,6564,5233],{"class":5232},[5208,6566,5236],{"class":5218},[5208,6568,6569,6571,6573,6576,6578,6580,6583],{"class":5210,"line":5239},[5208,6570,5215],{"class":5214},[5208,6572,5219],{"class":5218},[5208,6574,6575],{"class":5222},"CacheManager",[5208,6577,5226],{"class":5218},[5208,6579,5229],{"class":5214},[5208,6581,6582],{"class":5232}," '.\u002Fcache.manager'",[5208,6584,5236],{"class":5218},[5208,6586,6587],{"class":5210,"line":5257},[5208,6588,5261],{"emptyLinePlaceholder":5260},[5208,6590,6591,6593,6595],{"class":5210,"line":5264},[5208,6592,5267],{"class":5218},[5208,6594,5223],{"class":5270},[5208,6596,5273],{"class":5218},[5208,6598,6599,6601,6603,6606],{"class":5210,"line":5276},[5208,6600,5279],{"class":5214},[5208,6602,5283],{"class":5282},[5208,6604,6605],{"class":5286}," ProductsService",[5208,6607,5290],{"class":5218},[5208,6609,6610,6612,6614,6616,6618,6620,6622,6625,6627,6629],{"class":5210,"line":5293},[5208,6611,5296],{"class":5282},[5208,6613,6266],{"class":5218},[5208,6615,5722],{"class":5270},[5208,6617,5785],{"class":5218},[5208,6619,5302],{"class":5282},[5208,6621,5305],{"class":5282},[5208,6623,6624],{"class":5222}," cache",[5208,6626,5794],{"class":5218},[5208,6628,6575],{"class":5286},[5208,6630,5316],{"class":5218},[5208,6632,6633],{"class":5210,"line":5319},[5208,6634,5261],{"emptyLinePlaceholder":5260},[5208,6636,6637,6639,6642,6644,6647,6649,6651],{"class":5210,"line":5324},[5208,6638,5327],{"class":5282},[5208,6640,6641],{"class":5270}," getProduct",[5208,6643,5299],{"class":5218},[5208,6645,6646],{"class":5222},"productId",[5208,6648,5311],{"class":5218},[5208,6650,5990],{"class":5286},[5208,6652,5343],{"class":5218},[5208,6654,6655],{"class":5210,"line":5346},[5208,6656,6657],{"class":5391},"    \u002F\u002F Спочатку перевіряємо кеш (якщо він доступний)\n",[5208,6659,6660,6662,6664,6666,6668,6671],{"class":5210,"line":5388},[5208,6661,5807],{"class":5214},[5208,6663,5160],{"class":5218},[5208,6665,5812],{"class":5282},[5208,6667,5352],{"class":5218},[5208,6669,6670],{"class":5222},"cache",[5208,6672,5343],{"class":5218},[5208,6674,6675,6678,6681,6684,6687,6690,6692,6694,6696,6699,6701,6704,6706,6708,6710,6712],{"class":5210,"line":5395},[5208,6676,6677],{"class":5282},"      const",[5208,6679,6680],{"class":6357}," cached",[5208,6682,6683],{"class":5218}," = ",[5208,6685,6686],{"class":5214},"await",[5208,6688,6689],{"class":5282}," this",[5208,6691,5352],{"class":5218},[5208,6693,6670],{"class":5222},[5208,6695,5352],{"class":5218},[5208,6697,6698],{"class":5270},"get",[5208,6700,5299],{"class":5218},[5208,6702,6703],{"class":5232},"`product:",[5208,6705,5368],{"class":5282},[5208,6707,6646],{"class":5222},[5208,6709,5379],{"class":5282},[5208,6711,5382],{"class":5232},[5208,6713,5385],{"class":5218},[5208,6715,6716,6719,6721,6724],{"class":5210,"line":5418},[5208,6717,6718],{"class":5214},"      if",[5208,6720,5160],{"class":5218},[5208,6722,6723],{"class":5222},"cached",[5208,6725,5343],{"class":5218},[5208,6727,6728,6731,6733,6735,6737,6740,6742,6744,6746,6748],{"class":5210,"line":5424},[5208,6729,6730],{"class":5222},"        console",[5208,6732,5352],{"class":5218},[5208,6734,5360],{"class":5270},[5208,6736,5299],{"class":5218},[5208,6738,6739],{"class":5232},"`Cache hit for product ",[5208,6741,5368],{"class":5282},[5208,6743,6646],{"class":5222},[5208,6745,5379],{"class":5282},[5208,6747,5382],{"class":5232},[5208,6749,5385],{"class":5218},[5208,6751,6752,6755,6757],{"class":5210,"line":5872},[5208,6753,6754],{"class":5214},"        return",[5208,6756,6680],{"class":5222},[5208,6758,5236],{"class":5218},[5208,6760,6761],{"class":5210,"line":5877},[5208,6762,6763],{"class":5218},"      }\n",[5208,6765,6766],{"class":5210,"line":5882},[5208,6767,5869],{"class":5218},[5208,6769,6770],{"class":5210,"line":5899},[5208,6771,5261],{"emptyLinePlaceholder":5260},[5208,6773,6774],{"class":5210,"line":5905},[5208,6775,6776],{"class":5391},"    \u002F\u002F Якщо кешу немає або дані відсутні — йдемо в БД\n",[5208,6778,6779,6782,6784,6786,6788,6791],{"class":5210,"line":5937},[5208,6780,6781],{"class":5222},"    console",[5208,6783,5352],{"class":5218},[5208,6785,5360],{"class":5270},[5208,6787,5299],{"class":5218},[5208,6789,6790],{"class":5232},"`Cache miss or unavailable, fetching from DB`",[5208,6792,5385],{"class":5218},[5208,6794,6795,6797,6800,6802,6804,6806,6808,6811,6813,6815],{"class":5210,"line":5942},[5208,6796,6354],{"class":5282},[5208,6798,6799],{"class":6357}," product",[5208,6801,6683],{"class":5218},[5208,6803,6686],{"class":5214},[5208,6805,6689],{"class":5282},[5208,6807,5352],{"class":5218},[5208,6809,6810],{"class":5270},"fetchFromDatabase",[5208,6812,5299],{"class":5218},[5208,6814,6646],{"class":5222},[5208,6816,5385],{"class":5218},[5208,6818,6819],{"class":5210,"line":5948},[5208,6820,5261],{"emptyLinePlaceholder":5260},[5208,6822,6823],{"class":5210,"line":5965},[5208,6824,6825],{"class":5391},"    \u002F\u002F Зберігаємо у кеш (якщо він доступний)\n",[5208,6827,6828,6830,6832,6834,6836,6838],{"class":5210,"line":5970},[5208,6829,5807],{"class":5214},[5208,6831,5160],{"class":5218},[5208,6833,5812],{"class":5282},[5208,6835,5352],{"class":5218},[5208,6837,6670],{"class":5222},[5208,6839,5343],{"class":5218},[5208,6841,6842,6845,6847,6849,6851,6853,6856,6858,6860,6862,6864,6866,6868,6870,6873,6876,6879,6882],{"class":5210,"line":5975},[5208,6843,6844],{"class":5214},"      await",[5208,6846,6689],{"class":5282},[5208,6848,5352],{"class":5218},[5208,6850,6670],{"class":5222},[5208,6852,5352],{"class":5218},[5208,6854,6855],{"class":5270},"set",[5208,6857,5299],{"class":5218},[5208,6859,6703],{"class":5232},[5208,6861,5368],{"class":5282},[5208,6863,6646],{"class":5222},[5208,6865,5379],{"class":5282},[5208,6867,5382],{"class":5232},[5208,6869,5141],{"class":5218},[5208,6871,6872],{"class":5222},"product",[5208,6874,6875],{"class":5218},", { ",[5208,6877,6878],{"class":5222},"ttl:",[5208,6880,6881],{"class":5406}," 3600",[5208,6883,6884],{"class":5218}," });\n",[5208,6886,6887],{"class":5210,"line":5995},[5208,6888,5869],{"class":5218},[5208,6890,6891],{"class":5210,"line":6023},[5208,6892,5261],{"emptyLinePlaceholder":5260},[5208,6894,6895,6897,6899],{"class":5210,"line":6029},[5208,6896,5398],{"class":5214},[5208,6898,6799],{"class":5222},[5208,6900,5236],{"class":5218},[5208,6902,6903],{"class":5210,"line":6035},[5208,6904,5421],{"class":5218},[5208,6906,6907],{"class":5210,"line":6040},[5208,6908,5261],{"emptyLinePlaceholder":5260},[5208,6910,6912,6915,6918,6921,6923,6925,6927,6929],{"class":5210,"line":6911},30,[5208,6913,6914],{"class":5282},"  private",[5208,6916,6917],{"class":5282}," async",[5208,6919,6920],{"class":5270}," fetchFromDatabase",[5208,6922,5299],{"class":5218},[5208,6924,6417],{"class":5222},[5208,6926,5311],{"class":5218},[5208,6928,5990],{"class":5286},[5208,6930,5343],{"class":5218},[5208,6932,6934],{"class":5210,"line":6933},31,[5208,6935,6936],{"class":5391},"    \u002F\u002F Симуляція запиту до БД\n",[5208,6938,6940,6942,6944,6946,6948,6951,6954,6956,6958,6960,6962,6964,6967,6970],{"class":5210,"line":6939},32,[5208,6941,5398],{"class":5214},[5208,6943,5219],{"class":5218},[5208,6945,6417],{"class":5222},[5208,6947,5141],{"class":5218},[5208,6949,6950],{"class":5222},"name:",[5208,6952,6953],{"class":5232}," `Product ",[5208,6955,5368],{"class":5282},[5208,6957,6417],{"class":5222},[5208,6959,5379],{"class":5282},[5208,6961,5382],{"class":5232},[5208,6963,5141],{"class":5218},[5208,6965,6966],{"class":5222},"price:",[5208,6968,6969],{"class":5406}," 99.99",[5208,6971,5415],{"class":5218},[5208,6973,6975],{"class":5210,"line":6974},33,[5208,6976,5421],{"class":5218},[5208,6978,6980],{"class":5210,"line":6979},34,[5208,6981,5427],{"class":5218},[5135,6983,6984,6985,5160,6988,6991],{},"Цей підхід дозволяє створити ",[5150,6986,6987],{},"graceful degradation",[5162,6989,6990],{},"плавну деградацію функціональності","): якщо кеш недоступний, сервіс продовжує працювати, просто пропускаючи етап кешування.",[6178,6993,6995,6996,6999],{"id":6994},"паттерн-3-nullish-coalescing-для-значень-за-замовчуванням","Паттерн 3: Nullish Coalescing (",[5099,6997,6998],{},"??",") для значень за замовчуванням",[5135,7001,7002,7003,7005,7006,5666,7008,5197],{},"Оператор nullish coalescing ",[5099,7004,6998],{}," дозволяє надати значення за замовчуванням, якщо змінна є ",[5099,7007,5665],{},[5099,7009,5669],{},[5199,7011,7013],{"className":5201,"code":7012,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional } from '@nestjs\u002Fcommon';\nimport { MetricsCollector } from '.\u002Fmetrics.collector';\n\n@Injectable()\nexport class ApiService {\n  private readonly metrics: MetricsCollector | null;\n\n  constructor(@Optional() metricsCollector?: MetricsCollector) {\n    this.metrics = metricsCollector ?? null;\n    \n    \u002F\u002F Альтернатива: можна створити заглушку (no-op stub)\n    \u002F\u002F this.metrics = metricsCollector ?? new NoOpMetricsCollector();\n  }\n\n  async handleRequest(endpoint: string) {\n    const startTime = Date.now();\n\n    try {\n      \u002F\u002F Виконання запиту\n      const result = await this.processRequest(endpoint);\n      \n      \u002F\u002F Збір метрик (якщо доступно)\n      this.metrics?.recordSuccess(endpoint, Date.now() - startTime);\n      \n      return result;\n    } catch (error) {\n      this.metrics?.recordError(endpoint, error.message);\n      throw error;\n    }\n  }\n\n  private async processRequest(endpoint: string) {\n    \u002F\u002F Логіка обробки запиту\n    return { data: `Response from ${endpoint}` };\n  }\n}\n",[5099,7014,7015,7035,7053,7057,7065,7076,7096,7100,7119,7139,7143,7148,7153,7157,7161,7180,7199,7203,7210,7215,7239,7244,7249,7282,7286,7295,7309,7337,7347,7351,7355,7359,7378,7383,7405,7410],{"__ignoreMap":5204},[5208,7016,7017,7019,7021,7023,7025,7027,7029,7031,7033],{"class":5210,"line":5211},[5208,7018,5215],{"class":5214},[5208,7020,5219],{"class":5218},[5208,7022,5223],{"class":5222},[5208,7024,5141],{"class":5218},[5208,7026,5722],{"class":5222},[5208,7028,5226],{"class":5218},[5208,7030,5229],{"class":5214},[5208,7032,5233],{"class":5232},[5208,7034,5236],{"class":5218},[5208,7036,7037,7039,7041,7044,7046,7048,7051],{"class":5210,"line":5239},[5208,7038,5215],{"class":5214},[5208,7040,5219],{"class":5218},[5208,7042,7043],{"class":5222},"MetricsCollector",[5208,7045,5226],{"class":5218},[5208,7047,5229],{"class":5214},[5208,7049,7050],{"class":5232}," '.\u002Fmetrics.collector'",[5208,7052,5236],{"class":5218},[5208,7054,7055],{"class":5210,"line":5257},[5208,7056,5261],{"emptyLinePlaceholder":5260},[5208,7058,7059,7061,7063],{"class":5210,"line":5264},[5208,7060,5267],{"class":5218},[5208,7062,5223],{"class":5270},[5208,7064,5273],{"class":5218},[5208,7066,7067,7069,7071,7074],{"class":5210,"line":5276},[5208,7068,5279],{"class":5214},[5208,7070,5283],{"class":5282},[5208,7072,7073],{"class":5286}," ApiService",[5208,7075,5290],{"class":5218},[5208,7077,7078,7080,7082,7085,7087,7089,7092,7094],{"class":5210,"line":5293},[5208,7079,6914],{"class":5282},[5208,7081,5305],{"class":5282},[5208,7083,7084],{"class":5222}," metrics",[5208,7086,5311],{"class":5218},[5208,7088,7043],{"class":5286},[5208,7090,7091],{"class":5218}," | ",[5208,7093,5665],{"class":5286},[5208,7095,5236],{"class":5218},[5208,7097,7098],{"class":5210,"line":5319},[5208,7099,5261],{"emptyLinePlaceholder":5260},[5208,7101,7102,7104,7106,7108,7110,7113,7115,7117],{"class":5210,"line":5324},[5208,7103,5296],{"class":5282},[5208,7105,6266],{"class":5218},[5208,7107,5722],{"class":5270},[5208,7109,5785],{"class":5218},[5208,7111,7112],{"class":5222},"metricsCollector",[5208,7114,5794],{"class":5218},[5208,7116,7043],{"class":5286},[5208,7118,5343],{"class":5218},[5208,7120,7121,7123,7125,7128,7130,7132,7135,7137],{"class":5210,"line":5346},[5208,7122,5349],{"class":5282},[5208,7124,5352],{"class":5218},[5208,7126,7127],{"class":5222},"metrics",[5208,7129,6683],{"class":5218},[5208,7131,7112],{"class":5222},[5208,7133,7134],{"class":5218}," ?? ",[5208,7136,5665],{"class":5282},[5208,7138,5236],{"class":5218},[5208,7140,7141],{"class":5210,"line":5388},[5208,7142,6026],{"class":5218},[5208,7144,7145],{"class":5210,"line":5395},[5208,7146,7147],{"class":5391},"    \u002F\u002F Альтернатива: можна створити заглушку (no-op stub)\n",[5208,7149,7150],{"class":5210,"line":5418},[5208,7151,7152],{"class":5391},"    \u002F\u002F this.metrics = metricsCollector ?? new NoOpMetricsCollector();\n",[5208,7154,7155],{"class":5210,"line":5424},[5208,7156,5421],{"class":5218},[5208,7158,7159],{"class":5210,"line":5872},[5208,7160,5261],{"emptyLinePlaceholder":5260},[5208,7162,7163,7165,7168,7170,7173,7175,7178],{"class":5210,"line":5877},[5208,7164,5327],{"class":5282},[5208,7166,7167],{"class":5270}," handleRequest",[5208,7169,5299],{"class":5218},[5208,7171,7172],{"class":5222},"endpoint",[5208,7174,5311],{"class":5218},[5208,7176,7177],{"class":5286},"string",[5208,7179,5343],{"class":5218},[5208,7181,7182,7184,7187,7189,7192,7194,7196],{"class":5210,"line":5882},[5208,7183,6354],{"class":5282},[5208,7185,7186],{"class":6357}," startTime",[5208,7188,6683],{"class":5218},[5208,7190,7191],{"class":5222},"Date",[5208,7193,5352],{"class":5218},[5208,7195,6371],{"class":5270},[5208,7197,7198],{"class":5218},"();\n",[5208,7200,7201],{"class":5210,"line":5899},[5208,7202,5261],{"emptyLinePlaceholder":5260},[5208,7204,7205,7208],{"class":5210,"line":5905},[5208,7206,7207],{"class":5214},"    try",[5208,7209,5290],{"class":5218},[5208,7211,7212],{"class":5210,"line":5937},[5208,7213,7214],{"class":5391},"      \u002F\u002F Виконання запиту\n",[5208,7216,7217,7219,7222,7224,7226,7228,7230,7233,7235,7237],{"class":5210,"line":5942},[5208,7218,6677],{"class":5282},[5208,7220,7221],{"class":6357}," result",[5208,7223,6683],{"class":5218},[5208,7225,6686],{"class":5214},[5208,7227,6689],{"class":5282},[5208,7229,5352],{"class":5218},[5208,7231,7232],{"class":5270},"processRequest",[5208,7234,5299],{"class":5218},[5208,7236,7172],{"class":5222},[5208,7238,5385],{"class":5218},[5208,7240,7241],{"class":5210,"line":5948},[5208,7242,7243],{"class":5218},"      \n",[5208,7245,7246],{"class":5210,"line":5965},[5208,7247,7248],{"class":5391},"      \u002F\u002F Збір метрик (якщо доступно)\n",[5208,7250,7251,7253,7255,7257,7259,7262,7264,7266,7268,7270,7272,7274,7277,7280],{"class":5210,"line":5970},[5208,7252,5823],{"class":5282},[5208,7254,5352],{"class":5218},[5208,7256,7127],{"class":5222},[5208,7258,5914],{"class":5218},[5208,7260,7261],{"class":5270},"recordSuccess",[5208,7263,5299],{"class":5218},[5208,7265,7172],{"class":5222},[5208,7267,5141],{"class":5218},[5208,7269,7191],{"class":5222},[5208,7271,5352],{"class":5218},[5208,7273,6371],{"class":5270},[5208,7275,7276],{"class":5218},"() - ",[5208,7278,7279],{"class":5222},"startTime",[5208,7281,5385],{"class":5218},[5208,7283,7284],{"class":5210,"line":5975},[5208,7285,7243],{"class":5218},[5208,7287,7288,7291,7293],{"class":5210,"line":5995},[5208,7289,7290],{"class":5214},"      return",[5208,7292,7221],{"class":5222},[5208,7294,5236],{"class":5218},[5208,7296,7297,7299,7302,7304,7307],{"class":5210,"line":6023},[5208,7298,5843],{"class":5218},[5208,7300,7301],{"class":5214},"catch",[5208,7303,5160],{"class":5218},[5208,7305,7306],{"class":5222},"error",[5208,7308,5343],{"class":5218},[5208,7310,7311,7313,7315,7317,7319,7322,7324,7326,7328,7330,7332,7335],{"class":5210,"line":6029},[5208,7312,5823],{"class":5282},[5208,7314,5352],{"class":5218},[5208,7316,7127],{"class":5222},[5208,7318,5914],{"class":5218},[5208,7320,7321],{"class":5270},"recordError",[5208,7323,5299],{"class":5218},[5208,7325,7172],{"class":5222},[5208,7327,5141],{"class":5218},[5208,7329,7306],{"class":5222},[5208,7331,5352],{"class":5218},[5208,7333,7334],{"class":5222},"message",[5208,7336,5385],{"class":5218},[5208,7338,7339,7342,7345],{"class":5210,"line":6035},[5208,7340,7341],{"class":5214},"      throw",[5208,7343,7344],{"class":5222}," error",[5208,7346,5236],{"class":5218},[5208,7348,7349],{"class":5210,"line":6040},[5208,7350,5869],{"class":5218},[5208,7352,7353],{"class":5210,"line":6911},[5208,7354,5421],{"class":5218},[5208,7356,7357],{"class":5210,"line":6933},[5208,7358,5261],{"emptyLinePlaceholder":5260},[5208,7360,7361,7363,7365,7368,7370,7372,7374,7376],{"class":5210,"line":6939},[5208,7362,6914],{"class":5282},[5208,7364,6917],{"class":5282},[5208,7366,7367],{"class":5270}," processRequest",[5208,7369,5299],{"class":5218},[5208,7371,7172],{"class":5222},[5208,7373,5311],{"class":5218},[5208,7375,7177],{"class":5286},[5208,7377,5343],{"class":5218},[5208,7379,7380],{"class":5210,"line":6974},[5208,7381,7382],{"class":5391},"    \u002F\u002F Логіка обробки запиту\n",[5208,7384,7385,7387,7389,7392,7395,7397,7399,7401,7403],{"class":5210,"line":6979},[5208,7386,5398],{"class":5214},[5208,7388,5219],{"class":5218},[5208,7390,7391],{"class":5222},"data:",[5208,7393,7394],{"class":5232}," `Response from ",[5208,7396,5368],{"class":5282},[5208,7398,7172],{"class":5222},[5208,7400,5379],{"class":5282},[5208,7402,5382],{"class":5232},[5208,7404,5415],{"class":5218},[5208,7406,7408],{"class":5210,"line":7407},35,[5208,7409,5421],{"class":5218},[5208,7411,7413],{"class":5210,"line":7412},36,[5208,7414,5427],{"class":5218},[6178,7416,7418],{"id":7417},"паттерн-4-no-op-stub-заглушка-без-операцій","Паттерн 4: No-Op Stub (заглушка без операцій)",[5135,7420,7421,7422,7425],{},"Іноді зручніше створити об'єкт-заглушку (",[5162,7423,7424],{},"stub","), який має той самий інтерфейс, що й реальний провайдер, але не виконує жодних дій:",[5199,7427,7429],{"className":5201,"code":7428,"language":5203,"meta":5204,"style":5204},"\u002F\u002F stubs\u002Fno-op-logger.stub.ts\nexport class NoOpLogger {\n  log(message: string): void {\n    \u002F\u002F Нічого не робимо\n  }\n\n  error(message: string, trace?: string): void {\n    \u002F\u002F Нічого не робимо\n  }\n\n  warn(message: string): void {\n    \u002F\u002F Нічого не робимо\n  }\n}\n\n\u002F\u002F services\u002Fusers.service.ts\nimport { Injectable, Optional } from '@nestjs\u002Fcommon';\nimport { LoggerService } from '.\u002Flogger.service';\nimport { NoOpLogger } from '.\u002Fstubs\u002Fno-op-logger.stub';\n\n@Injectable()\nexport class UsersService {\n  private readonly logger: LoggerService | NoOpLogger;\n\n  constructor(@Optional() logger?: LoggerService) {\n    \u002F\u002F Завжди маємо об'єкт з методами логування\n    this.logger = logger ?? new NoOpLogger();\n  }\n\n  async createUser(userData: any) {\n    \u002F\u002F Тепер можна викликати без перевірки\n    this.logger.log(`Creating user: ${userData.email}`);\n    \n    return { id: 1, ...userData };\n  }\n}\n",[5099,7430,7431,7436,7447,7468,7473,7477,7481,7509,7513,7517,7521,7540,7544,7548,7552,7556,7561,7581,7597,7615,7619,7627,7637,7655,7659,7677,7682,7703,7707,7711,7727,7732,7762,7766,7782,7786],{"__ignoreMap":5204},[5208,7432,7433],{"class":5210,"line":5211},[5208,7434,7435],{"class":5391},"\u002F\u002F stubs\u002Fno-op-logger.stub.ts\n",[5208,7437,7438,7440,7442,7445],{"class":5210,"line":5239},[5208,7439,5279],{"class":5214},[5208,7441,5283],{"class":5282},[5208,7443,7444],{"class":5286}," NoOpLogger",[5208,7446,5290],{"class":5218},[5208,7448,7449,7452,7454,7456,7458,7460,7463,7466],{"class":5210,"line":5257},[5208,7450,7451],{"class":5270},"  log",[5208,7453,5299],{"class":5218},[5208,7455,7334],{"class":5222},[5208,7457,5311],{"class":5218},[5208,7459,7177],{"class":5286},[5208,7461,7462],{"class":5218},"): ",[5208,7464,7465],{"class":5286},"void",[5208,7467,5290],{"class":5218},[5208,7469,7470],{"class":5210,"line":5264},[5208,7471,7472],{"class":5391},"    \u002F\u002F Нічого не робимо\n",[5208,7474,7475],{"class":5210,"line":5276},[5208,7476,5421],{"class":5218},[5208,7478,7479],{"class":5210,"line":5293},[5208,7480,5261],{"emptyLinePlaceholder":5260},[5208,7482,7483,7486,7488,7490,7492,7494,7496,7499,7501,7503,7505,7507],{"class":5210,"line":5319},[5208,7484,7485],{"class":5270},"  error",[5208,7487,5299],{"class":5218},[5208,7489,7334],{"class":5222},[5208,7491,5311],{"class":5218},[5208,7493,7177],{"class":5286},[5208,7495,5141],{"class":5218},[5208,7497,7498],{"class":5222},"trace",[5208,7500,5794],{"class":5218},[5208,7502,7177],{"class":5286},[5208,7504,7462],{"class":5218},[5208,7506,7465],{"class":5286},[5208,7508,5290],{"class":5218},[5208,7510,7511],{"class":5210,"line":5324},[5208,7512,7472],{"class":5391},[5208,7514,7515],{"class":5210,"line":5346},[5208,7516,5421],{"class":5218},[5208,7518,7519],{"class":5210,"line":5388},[5208,7520,5261],{"emptyLinePlaceholder":5260},[5208,7522,7523,7526,7528,7530,7532,7534,7536,7538],{"class":5210,"line":5395},[5208,7524,7525],{"class":5270},"  warn",[5208,7527,5299],{"class":5218},[5208,7529,7334],{"class":5222},[5208,7531,5311],{"class":5218},[5208,7533,7177],{"class":5286},[5208,7535,7462],{"class":5218},[5208,7537,7465],{"class":5286},[5208,7539,5290],{"class":5218},[5208,7541,7542],{"class":5210,"line":5418},[5208,7543,7472],{"class":5391},[5208,7545,7546],{"class":5210,"line":5424},[5208,7547,5421],{"class":5218},[5208,7549,7550],{"class":5210,"line":5872},[5208,7551,5427],{"class":5218},[5208,7553,7554],{"class":5210,"line":5877},[5208,7555,5261],{"emptyLinePlaceholder":5260},[5208,7557,7558],{"class":5210,"line":5882},[5208,7559,7560],{"class":5391},"\u002F\u002F services\u002Fusers.service.ts\n",[5208,7562,7563,7565,7567,7569,7571,7573,7575,7577,7579],{"class":5210,"line":5899},[5208,7564,5215],{"class":5214},[5208,7566,5219],{"class":5218},[5208,7568,5223],{"class":5222},[5208,7570,5141],{"class":5218},[5208,7572,5722],{"class":5222},[5208,7574,5226],{"class":5218},[5208,7576,5229],{"class":5214},[5208,7578,5233],{"class":5232},[5208,7580,5236],{"class":5218},[5208,7582,7583,7585,7587,7589,7591,7593,7595],{"class":5210,"line":5905},[5208,7584,5215],{"class":5214},[5208,7586,5219],{"class":5218},[5208,7588,5196],{"class":5222},[5208,7590,5226],{"class":5218},[5208,7592,5229],{"class":5214},[5208,7594,5252],{"class":5232},[5208,7596,5236],{"class":5218},[5208,7598,7599,7601,7603,7606,7608,7610,7613],{"class":5210,"line":5937},[5208,7600,5215],{"class":5214},[5208,7602,5219],{"class":5218},[5208,7604,7605],{"class":5222},"NoOpLogger",[5208,7607,5226],{"class":5218},[5208,7609,5229],{"class":5214},[5208,7611,7612],{"class":5232}," '.\u002Fstubs\u002Fno-op-logger.stub'",[5208,7614,5236],{"class":5218},[5208,7616,7617],{"class":5210,"line":5942},[5208,7618,5261],{"emptyLinePlaceholder":5260},[5208,7620,7621,7623,7625],{"class":5210,"line":5948},[5208,7622,5267],{"class":5218},[5208,7624,5223],{"class":5270},[5208,7626,5273],{"class":5218},[5208,7628,7629,7631,7633,7635],{"class":5210,"line":5965},[5208,7630,5279],{"class":5214},[5208,7632,5283],{"class":5282},[5208,7634,5287],{"class":5286},[5208,7636,5290],{"class":5218},[5208,7638,7639,7641,7643,7645,7647,7649,7651,7653],{"class":5210,"line":5970},[5208,7640,6914],{"class":5282},[5208,7642,5305],{"class":5282},[5208,7644,5308],{"class":5222},[5208,7646,5311],{"class":5218},[5208,7648,5196],{"class":5286},[5208,7650,7091],{"class":5218},[5208,7652,7605],{"class":5286},[5208,7654,5236],{"class":5218},[5208,7656,7657],{"class":5210,"line":5975},[5208,7658,5261],{"emptyLinePlaceholder":5260},[5208,7660,7661,7663,7665,7667,7669,7671,7673,7675],{"class":5210,"line":5995},[5208,7662,5296],{"class":5282},[5208,7664,6266],{"class":5218},[5208,7666,5722],{"class":5270},[5208,7668,5785],{"class":5218},[5208,7670,5355],{"class":5222},[5208,7672,5794],{"class":5218},[5208,7674,5196],{"class":5286},[5208,7676,5343],{"class":5218},[5208,7678,7679],{"class":5210,"line":6023},[5208,7680,7681],{"class":5391},"    \u002F\u002F Завжди маємо об'єкт з методами логування\n",[5208,7683,7684,7686,7688,7690,7692,7694,7696,7699,7701],{"class":5210,"line":6029},[5208,7685,5349],{"class":5282},[5208,7687,5352],{"class":5218},[5208,7689,5355],{"class":5222},[5208,7691,6683],{"class":5218},[5208,7693,5355],{"class":5222},[5208,7695,7134],{"class":5218},[5208,7697,7698],{"class":5282},"new",[5208,7700,7444],{"class":5270},[5208,7702,7198],{"class":5218},[5208,7704,7705],{"class":5210,"line":6035},[5208,7706,5421],{"class":5218},[5208,7708,7709],{"class":5210,"line":6040},[5208,7710,5261],{"emptyLinePlaceholder":5260},[5208,7712,7713,7715,7717,7719,7721,7723,7725],{"class":5210,"line":6911},[5208,7714,5327],{"class":5282},[5208,7716,5330],{"class":5270},[5208,7718,5299],{"class":5218},[5208,7720,5335],{"class":5222},[5208,7722,5311],{"class":5218},[5208,7724,5340],{"class":5286},[5208,7726,5343],{"class":5218},[5208,7728,7729],{"class":5210,"line":6933},[5208,7730,7731],{"class":5391},"    \u002F\u002F Тепер можна викликати без перевірки\n",[5208,7733,7734,7736,7738,7740,7742,7744,7746,7748,7750,7752,7754,7756,7758,7760],{"class":5210,"line":6939},[5208,7735,5349],{"class":5282},[5208,7737,5352],{"class":5218},[5208,7739,5355],{"class":5222},[5208,7741,5352],{"class":5218},[5208,7743,5360],{"class":5270},[5208,7745,5299],{"class":5218},[5208,7747,5365],{"class":5232},[5208,7749,5368],{"class":5282},[5208,7751,5335],{"class":5222},[5208,7753,5352],{"class":5373},[5208,7755,5376],{"class":5222},[5208,7757,5379],{"class":5282},[5208,7759,5382],{"class":5232},[5208,7761,5385],{"class":5218},[5208,7763,7764],{"class":5210,"line":6974},[5208,7765,6026],{"class":5218},[5208,7767,7768,7770,7772,7774,7776,7778,7780],{"class":5210,"line":6979},[5208,7769,5398],{"class":5214},[5208,7771,5219],{"class":5218},[5208,7773,5403],{"class":5222},[5208,7775,5407],{"class":5406},[5208,7777,5410],{"class":5218},[5208,7779,5335],{"class":5222},[5208,7781,5415],{"class":5218},[5208,7783,7784],{"class":5210,"line":7407},[5208,7785,5421],{"class":5218},[5208,7787,7788],{"class":5210,"line":7412},[5208,7789,5427],{"class":5218},[5135,7791,7792,7793,7796,7797,7800],{},"Перевага цього підходу — ",[5150,7794,7795],{},"відсутність необхідності перевіряти наявність логера"," у кожному місці використання. Викликаючий код просто використовує ",[5099,7798,7799],{},"this.logger.log(...)",", а якщо логер відсутній, заглушка ігнорує виклик.",[7802,7803,7804,7805,7808],"note",{},"Паттерн No-Op Stub особливо корисний, коли опціональна залежність використовується у багатьох місцях коду. Замість розміщення перевірок ",[5099,7806,7807],{},"if (this.logger)"," у кожному методі, ви створюєте заглушку один раз у конструкторі.",[5128,7810],{},[5084,7812,7814],{"id":7813},"значення-за-замовчуванням-ініціалізація-у-конструкторі","Значення за замовчуванням: ініціалізація у конструкторі",[5135,7816,7817,7818,5160,7821,7824],{},"Альтернативний підхід до обробки відсутніх залежностей — ",[5150,7819,7820],{},"надання значень за замовчуванням",[5162,7822,7823],{},"default values",") безпосередньо у конструкторі або через ініціалізацію полів класу. Це дозволяє гарантувати, що поле завжди матиме якесь значення, навіть якщо провайдер не знайдено.",[6178,7826,7828],{"id":7827},"приклад-конфігурація-за-замовчуванням","Приклад: конфігурація за замовчуванням",[5199,7830,7832],{"className":5201,"code":7831,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional, Inject } from '@nestjs\u002Fcommon';\n\ninterface AppConfig {\n  apiUrl: string;\n  timeout: number;\n  retryAttempts: number;\n}\n\nconst DEFAULT_CONFIG: AppConfig = {\n  apiUrl: 'http:\u002F\u002Flocalhost:3000',\n  timeout: 5000,\n  retryAttempts: 3\n};\n\n@Injectable()\nexport class ApiClientService {\n  private readonly config: AppConfig;\n\n  constructor(\n    @Optional()\n    @Inject('APP_CONFIG')\n    providedConfig?: AppConfig\n  ) {\n    \u002F\u002F Якщо конфігурація не надана — використовуємо значення за замовчуванням\n    this.config = providedConfig ?? DEFAULT_CONFIG;\n    \n    console.log(`API Client initialized with URL: ${this.config.apiUrl}`);\n  }\n\n  async fetchData(endpoint: string) {\n    const controller = new AbortController();\n    const timeoutId = setTimeout(\n      () => controller.abort(),\n      this.config.timeout\n    );\n\n    try {\n      const response = await fetch(`${this.config.apiUrl}${endpoint}`, {\n        signal: controller.signal\n      });\n      clearTimeout(timeoutId);\n      return response.json();\n    } catch (error) {\n      console.error(`API request failed: ${error.message}`);\n      throw error;\n    }\n  }\n}\n",[5099,7833,7834,7859,7863,7873,7884,7895,7906,7910,7914,7930,7941,7951,7959,7964,7968,7976,7987,8002,8006,8012,8020,8034,8044,8048,8053,8074,8078,8110,8114,8118,8135,8151,8165,8183,8196,8201,8205,8212,8255,8268,8274,8287,8301,8314,8342,8351,8356,8361],{"__ignoreMap":5204},[5208,7835,7836,7838,7840,7842,7844,7846,7848,7851,7853,7855,7857],{"class":5210,"line":5211},[5208,7837,5215],{"class":5214},[5208,7839,5219],{"class":5218},[5208,7841,5223],{"class":5222},[5208,7843,5141],{"class":5218},[5208,7845,5722],{"class":5222},[5208,7847,5141],{"class":5218},[5208,7849,7850],{"class":5222},"Inject",[5208,7852,5226],{"class":5218},[5208,7854,5229],{"class":5214},[5208,7856,5233],{"class":5232},[5208,7858,5236],{"class":5218},[5208,7860,7861],{"class":5210,"line":5239},[5208,7862,5261],{"emptyLinePlaceholder":5260},[5208,7864,7865,7868,7871],{"class":5210,"line":5257},[5208,7866,7867],{"class":5282},"interface",[5208,7869,7870],{"class":5286}," 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",[5099,8384,8385],{},"this.config"," завжди має коректний тип ",[5099,8388,7926],{},", що забезпечує типобезпеку",[6178,8391,8393],{"id":8392},"приклад-часткове-злиття-конфігурацій","Приклад: часткове злиття конфігурацій",[5135,8395,8396],{},"Можна комбінувати надану конфігурацію зі значеннями за замовчуванням через оператор spread:",[5199,8398,8400],{"className":5201,"code":8399,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional, Inject } from '@nestjs\u002Fcommon';\n\ninterface DatabaseOptions {\n  host: string;\n  port: number;\n  username: string;\n  password: string;\n  poolSize?: number;\n  connectionTimeout?: number;\n}\n\nconst DEFAULT_DB_OPTIONS: Partial\u003CDatabaseOptions> = {\n  host: 'localhost',\n  port: 5432,\n  username: 'postgres',\n  password: '',\n  poolSize: 10,\n  connectionTimeout: 5000\n};\n\n@Injectable()\nexport class DatabaseService {\n  private readonly options: DatabaseOptions;\n\n  constructor(\n    @Optional()\n    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5000\n",[5208,8593,8594],{"class":5210,"line":5937},[5208,8595,7963],{"class":5218},[5208,8597,8598],{"class":5210,"line":5942},[5208,8599,5261],{"emptyLinePlaceholder":5260},[5208,8601,8602,8604,8606],{"class":5210,"line":5948},[5208,8603,5267],{"class":5218},[5208,8605,5223],{"class":5270},[5208,8607,5273],{"class":5218},[5208,8609,8610,8612,8614,8617],{"class":5210,"line":5965},[5208,8611,5279],{"class":5214},[5208,8613,5283],{"class":5282},[5208,8615,8616],{"class":5286}," DatabaseService",[5208,8618,5290],{"class":5218},[5208,8620,8621,8623,8625,8628,8630,8632],{"class":5210,"line":5970},[5208,8622,6914],{"class":5282},[5208,8624,5305],{"class":5282},[5208,8626,8627],{"class":5222}," options",[5208,8629,5311],{"class":5218},[5208,8631,8530],{"class":5286},[5208,8633,5236],{"class":5218},[5208,8635,8636],{"class":5210,"line":5975},[5208,8637,5261],{"emptyLinePlaceholder":5260},[5208,8639,8640,8642],{"class":5210,"line":5995},[5208,8641,5296],{"class":5282},[5208,8643,5775],{"class":5218},[5208,8645,8646,8648,8650],{"class":5210,"line":6023},[5208,8647,5780],{"class":5218},[5208,8649,5722],{"class":5270},[5208,8651,5273],{"class":5218},[5208,8653,8654,8656,8658,8660,8663],{"class":5210,"line":6029},[5208,8655,5780],{"class":5218},[5208,8657,7850],{"class":5270},[5208,8659,5299],{"class":5218},[5208,8661,8662],{"class":5232},"'DB_OPTIONS'",[5208,8664,8033],{"class":5218},[5208,8666,8667,8670,8672,8674,8676,8678],{"class":5210,"line":6035},[5208,8668,8669],{"class":5222},"    providedOptions",[5208,8671,5794],{"class":5218},[5208,8673,8524],{"class":5286},[5208,8675,8527],{"class":5218},[5208,8677,8530],{"class":5286},[5208,8679,8680],{"class":5218},">\n",[5208,8682,8683],{"class":5210,"line":6040},[5208,8684,5802],{"class":5218},[5208,8686,8687],{"class":5210,"line":6911},[5208,8688,8689],{"class":5391},"    \u002F\u002F Злиття: надані опції перевизначають значення за замовчуванням\n",[5208,8691,8692,8694,8696,8699],{"class":5210,"line":6933},[5208,8693,5349],{"class":5282},[5208,8695,5352],{"class":5218},[5208,8697,8698],{"class":5222},"options",[5208,8700,7929],{"class":5218},[5208,8702,8703,8706,8709],{"class":5210,"line":6939},[5208,8704,8705],{"class":5218},"      ...",[5208,8707,8708],{"class":6357},"DEFAULT_DB_OPTIONS",[5208,8710,7940],{"class":5218},[5208,8712,8713,8715],{"class":5210,"line":6974},[5208,8714,8705],{"class":5218},[5208,8716,8717],{"class":5222},"providedOptions\n",[5208,8719,8720,8722,8725,8727],{"class":5210,"line":6979},[5208,8721,5843],{"class":5218},[5208,8723,8724],{"class":5214},"as",[5208,8726,8436],{"class":5286},[5208,8728,5236],{"class":5218},[5208,8730,8731],{"class":5210,"line":7407},[5208,8732,5261],{"emptyLinePlaceholder":5260},[5208,8734,8735,8737,8739,8741],{"class":5210,"line":7412},[5208,8736,6781],{"class":5222},[5208,8738,5352],{"class":5218},[5208,8740,5360],{"class":5270},[5208,8742,5775],{"class":5218},[5208,8744,8745,8748,8750,8752,8754,8756,8758,8761,8763,8765,8767,8769,8771,8773,8775,8778,8780,8782,8784,8786,8788,8790,8792,8795,8797],{"class":5210,"line":8207},[5208,8746,8747],{"class":5232},"      `Database configured: ",[5208,8749,5368],{"class":5282},[5208,8751,5812],{"class":5282},[5208,8753,5352],{"class":5373},[5208,8755,8698],{"class":5222},[5208,8757,5352],{"class":5373},[5208,8759,8760],{"class":5222},"username",[5208,8762,5379],{"class":5282},[5208,8764,5267],{"class":5232},[5208,8766,5368],{"class":5282},[5208,8768,5812],{"class":5282},[5208,8770,5352],{"class":5373},[5208,8772,8698],{"class":5222},[5208,8774,5352],{"class":5373},[5208,8776,8777],{"class":5222},"host",[5208,8779,5379],{"class":5282},[5208,8781,5197],{"class":5232},[5208,8783,5368],{"class":5282},[5208,8785,5812],{"class":5282},[5208,8787,5352],{"class":5373},[5208,8789,8698],{"class":5222},[5208,8791,5352],{"class":5373},[5208,8793,8794],{"class":5222},"port",[5208,8796,5379],{"class":5282},[5208,8798,8799],{"class":5232},"`\n",[5208,8801,8802],{"class":5210,"line":8214},[5208,8803,8200],{"class":5218},[5208,8805,8806],{"class":5210,"line":8257},[5208,8807,5421],{"class":5218},[5208,8809,8810],{"class":5210,"line":8270},[5208,8811,5261],{"emptyLinePlaceholder":5260},[5208,8813,8814,8816,8819],{"class":5210,"line":8276},[5208,8815,5327],{"class":5282},[5208,8817,8818],{"class":5270}," connect",[5208,8820,8821],{"class":5218},"() {\n",[5208,8823,8824,8826,8828,8830,8832,8835,8837,8839,8841,8843,8845,8848,8850,8852],{"class":5210,"line":8289},[5208,8825,6781],{"class":5222},[5208,8827,5352],{"class":5218},[5208,8829,5360],{"class":5270},[5208,8831,5299],{"class":5218},[5208,8833,8834],{"class":5232},"`Connecting with pool size: ",[5208,8836,5368],{"class":5282},[5208,8838,5812],{"class":5282},[5208,8840,5352],{"class":5373},[5208,8842,8698],{"class":5222},[5208,8844,5352],{"class":5373},[5208,8846,8847],{"class":5222},"poolSize",[5208,8849,5379],{"class":5282},[5208,8851,5382],{"class":5232},[5208,8853,5385],{"class":5218},[5208,8855,8856],{"class":5210,"line":8303},[5208,8857,8858],{"class":5391},"    \u002F\u002F Логіка підключення\n",[5208,8860,8861],{"class":5210,"line":8316},[5208,8862,5421],{"class":5218},[5208,8864,8865],{"class":5210,"line":8344},[5208,8866,5427],{"class":5218},[5135,8868,8869],{},"Тепер адміністратор може надати лише частину конфігурації, а решта заповниться значеннями за замовчуванням:",[5199,8871,8873],{"className":5201,"code":8872,"language":5203,"meta":5204,"style":5204},"\u002F\u002F app.module.ts\n@Module({\n  providers: [\n    DatabaseService,\n    {\n      provide: 'DB_OPTIONS',\n      useValue: {\n        host: 'prod-db.example.com',\n        password: process.env.DB_PASSWORD\n        \u002F\u002F port, username, poolSize використають значення за замовчуванням\n      }\n    }\n  ]\n})\nexport class AppModule {}\n",[5099,8874,8875,8880,8888,8894,8901,8906,8916,8923,8933,8951,8956,8960,8964,8968,8972],{"__ignoreMap":5204},[5208,8876,8877],{"class":5210,"line":5211},[5208,8878,8879],{"class":5391},"\u002F\u002F app.module.ts\n",[5208,8881,8882,8884,8886],{"class":5210,"line":5239},[5208,8883,5267],{"class":5218},[5208,8885,5449],{"class":5270},[5208,8887,5452],{"class":5218},[5208,8889,8890,8892],{"class":5210,"line":5257},[5208,8891,5457],{"class":5222},[5208,8893,5460],{"class":5218},[5208,8895,8896,8899],{"class":5210,"line":5264},[5208,8897,8898],{"class":5222},"    DatabaseService",[5208,8900,7940],{"class":5218},[5208,8902,8903],{"class":5210,"line":5276},[5208,8904,8905],{"class":5218},"    {\n",[5208,8907,8908,8911,8914],{"class":5210,"line":5293},[5208,8909,8910],{"class":5222},"      provide:",[5208,8912,8913],{"class":5232}," 'DB_OPTIONS'",[5208,8915,7940],{"class":5218},[5208,8917,8918,8921],{"class":5210,"line":5319},[5208,8919,8920],{"class":5222},"      useValue:",[5208,8922,5290],{"class":5218},[5208,8924,8925,8928,8931],{"class":5210,"line":5324},[5208,8926,8927],{"class":5222},"        host:",[5208,8929,8930],{"class":5232}," 'prod-db.example.com'",[5208,8932,7940],{"class":5218},[5208,8934,8935,8938,8941,8943,8946,8948],{"class":5210,"line":5346},[5208,8936,8937],{"class":5222},"        password:",[5208,8939,8940],{"class":5222}," process",[5208,8942,5352],{"class":5218},[5208,8944,8945],{"class":5222},"env",[5208,8947,5352],{"class":5218},[5208,8949,8950],{"class":6357},"DB_PASSWORD\n",[5208,8952,8953],{"class":5210,"line":5388},[5208,8954,8955],{"class":5391},"        \u002F\u002F port, username, poolSize використають значення за замовчуванням\n",[5208,8957,8958],{"class":5210,"line":5395},[5208,8959,6763],{"class":5218},[5208,8961,8962],{"class":5210,"line":5418},[5208,8963,5869],{"class":5218},[5208,8965,8966],{"class":5210,"line":5424},[5208,8967,5475],{"class":5218},[5208,8969,8970],{"class":5210,"line":5872},[5208,8971,5480],{"class":5218},[5208,8973,8974,8976,8978,8981],{"class":5210,"line":5877},[5208,8975,5279],{"class":5214},[5208,8977,5283],{"class":5282},[5208,8979,8980],{"class":5286}," AppModule",[5208,8982,5492],{"class":5218},[6526,8984,8985],{},"Використовуйте часткове злиття конфігурацій для надання гнучкості: розробники можуть перевизначати лише ті параметри, які відрізняються від стандартних, не дублюючи всю конфігурацію.",[5128,8987],{},[5084,8989,8991],{"id":8990},"сценарії-використання-коли-опціональні-залежності-доречні","Сценарії використання: коли опціональні залежності доречні",[5135,8993,8994],{},"Опціональні залежності є потужним інструментом, але їх слід використовувати обережно. Розглянемо типові сценарії, де вони справді необхідні, та ситуації, коли краще залишити залежність обов'язковою.",[6178,8996,8998],{"id":8997},"сценарій-1-опціональне-логування-та-моніторинг","✅ Сценарій 1: Опціональне логування та моніторинг",[5135,9000,9001,9004],{},[5150,9002,9003],{},"Проблема",": У розробці ви хочете бачити детальні логи у консолі, а у продакшні — відправляти їх у централізовану систему моніторингу (Sentry, Datadog). Під час тестування логування взагалі не потрібне.",[5135,9006,9007,9010],{},[5150,9008,9009],{},"Рішення",": Зробити залежність від логера опціональною:",[5199,9012,9014],{"className":5201,"code":9013,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional } from '@nestjs\u002Fcommon';\nimport { Logger } from '.\u002Flogger.interface';\n\n@Injectable()\nexport class PaymentService {\n  constructor(@Optional() private readonly logger?: Logger) {}\n\n  async processPayment(amount: number, userId: number) {\n    this.logger?.log(`Processing payment: ${amount} for user ${userId}`);\n\n    try {\n      \u002F\u002F Логіка обробки платежу\n      const transactionId = await this.chargeCard(amount);\n      \n      this.logger?.log(`Payment successful: transaction ${transactionId}`);\n      return { success: true, transactionId };\n    } catch (error) {\n      this.logger?.error(`Payment failed: ${error.message}`, error.stack);\n      throw error;\n    }\n  }\n\n  private async chargeCard(amount: number): Promise\u003Cstring> {\n    \u002F\u002F Симуляція API платіжної системи\n    return `txn_${Date.now()}`;\n  }\n}\n",[5099,9015,9016,9036,9054,9058,9066,9077,9099,9103,9129,9165,9169,9175,9180,9204,9208,9236,9254,9266,9306,9314,9318,9322,9326,9355,9360,9384,9388],{"__ignoreMap":5204},[5208,9017,9018,9020,9022,9024,9026,9028,9030,9032,9034],{"class":5210,"line":5211},[5208,9019,5215],{"class":5214},[5208,9021,5219],{"class":5218},[5208,9023,5223],{"class":5222},[5208,9025,5141],{"class":5218},[5208,9027,5722],{"class":5222},[5208,9029,5226],{"class":5218},[5208,9031,5229],{"class":5214},[5208,9033,5233],{"class":5232},[5208,9035,5236],{"class":5218},[5208,9037,9038,9040,9042,9045,9047,9049,9052],{"class":5210,"line":5239},[5208,9039,5215],{"class":5214},[5208,9041,5219],{"class":5218},[5208,9043,9044],{"class":5222},"Logger",[5208,9046,5226],{"class":5218},[5208,9048,5229],{"class":5214},[5208,9050,9051],{"class":5232}," '.\u002Flogger.interface'",[5208,9053,5236],{"class":5218},[5208,9055,9056],{"class":5210,"line":5257},[5208,9057,5261],{"emptyLinePlaceholder":5260},[5208,9059,9060,9062,9064],{"class":5210,"line":5264},[5208,9061,5267],{"class":5218},[5208,9063,5223],{"class":5270},[5208,9065,5273],{"class":5218},[5208,9067,9068,9070,9072,9075],{"class":5210,"line":5276},[5208,9069,5279],{"class":5214},[5208,9071,5283],{"class":5282},[5208,9073,9074],{"class":5286}," PaymentService",[5208,9076,5290],{"class":5218},[5208,9078,9079,9081,9083,9085,9087,9089,9091,9093,9095,9097],{"class":5210,"line":5293},[5208,9080,5296],{"class":5282},[5208,9082,6266],{"class":5218},[5208,9084,5722],{"class":5270},[5208,9086,5785],{"class":5218},[5208,9088,5302],{"class":5282},[5208,9090,5305],{"class":5282},[5208,9092,5308],{"class":5222},[5208,9094,5794],{"class":5218},[5208,9096,9044],{"class":5286},[5208,9098,5316],{"class":5218},[5208,9100,9101],{"class":5210,"line":5319},[5208,9102,5261],{"emptyLinePlaceholder":5260},[5208,9104,9105,9107,9110,9112,9115,9117,9119,9121,9123,9125,9127],{"class":5210,"line":5324},[5208,9106,5327],{"class":5282},[5208,9108,9109],{"class":5270}," processPayment",[5208,9111,5299],{"class":5218},[5208,9113,9114],{"class":5222},"amount",[5208,9116,5311],{"class":5218},[5208,9118,5990],{"class":5286},[5208,9120,5141],{"class":5218},[5208,9122,5985],{"class":5222},[5208,9124,5311],{"class":5218},[5208,9126,5990],{"class":5286},[5208,9128,5343],{"class":5218},[5208,9130,9131,9133,9135,9137,9139,9141,9143,9146,9148,9150,9152,9155,9157,9159,9161,9163],{"class":5210,"line":5346},[5208,9132,5349],{"class":5282},[5208,9134,5352],{"class":5218},[5208,9136,5355],{"class":5222},[5208,9138,5914],{"class":5218},[5208,9140,5360],{"class":5270},[5208,9142,5299],{"class":5218},[5208,9144,9145],{"class":5232},"`Processing payment: ",[5208,9147,5368],{"class":5282},[5208,9149,9114],{"class":5222},[5208,9151,5379],{"class":5282},[5208,9153,9154],{"class":5232}," for user ",[5208,9156,5368],{"class":5282},[5208,9158,5985],{"class":5222},[5208,9160,5379],{"class":5282},[5208,9162,5382],{"class":5232},[5208,9164,5385],{"class":5218},[5208,9166,9167],{"class":5210,"line":5388},[5208,9168,5261],{"emptyLinePlaceholder":5260},[5208,9170,9171,9173],{"class":5210,"line":5395},[5208,9172,7207],{"class":5214},[5208,9174,5290],{"class":5218},[5208,9176,9177],{"class":5210,"line":5418},[5208,9178,9179],{"class":5391},"      \u002F\u002F Логіка обробки платежу\n",[5208,9181,9182,9184,9187,9189,9191,9193,9195,9198,9200,9202],{"class":5210,"line":5424},[5208,9183,6677],{"class":5282},[5208,9185,9186],{"class":6357}," transactionId",[5208,9188,6683],{"class":5218},[5208,9190,6686],{"class":5214},[5208,9192,6689],{"class":5282},[5208,9194,5352],{"class":5218},[5208,9196,9197],{"class":5270},"chargeCard",[5208,9199,5299],{"class":5218},[5208,9201,9114],{"class":5222},[5208,9203,5385],{"class":5218},[5208,9205,9206],{"class":5210,"line":5872},[5208,9207,7243],{"class":5218},[5208,9209,9210,9212,9214,9216,9218,9220,9222,9225,9227,9230,9232,9234],{"class":5210,"line":5877},[5208,9211,5823],{"class":5282},[5208,9213,5352],{"class":5218},[5208,9215,5355],{"class":5222},[5208,9217,5914],{"class":5218},[5208,9219,5360],{"class":5270},[5208,9221,5299],{"class":5218},[5208,9223,9224],{"class":5232},"`Payment successful: transaction ",[5208,9226,5368],{"class":5282},[5208,9228,9229],{"class":5222},"transactionId",[5208,9231,5379],{"class":5282},[5208,9233,5382],{"class":5232},[5208,9235,5385],{"class":5218},[5208,9237,9238,9240,9242,9245,9248,9250,9252],{"class":5210,"line":5882},[5208,9239,7290],{"class":5214},[5208,9241,5219],{"class":5218},[5208,9243,9244],{"class":5222},"success:",[5208,9246,9247],{"class":5282}," true",[5208,9249,5141],{"class":5218},[5208,9251,9229],{"class":5222},[5208,9253,5415],{"class":5218},[5208,9255,9256,9258,9260,9262,9264],{"class":5210,"line":5899},[5208,9257,5843],{"class":5218},[5208,9259,7301],{"class":5214},[5208,9261,5160],{"class":5218},[5208,9263,7306],{"class":5222},[5208,9265,5343],{"class":5218},[5208,9267,9268,9270,9272,9274,9276,9278,9280,9283,9285,9287,9289,9291,9293,9295,9297,9299,9301,9304],{"class":5210,"line":5905},[5208,9269,5823],{"class":5282},[5208,9271,5352],{"class":5218},[5208,9273,5355],{"class":5222},[5208,9275,5914],{"class":5218},[5208,9277,7306],{"class":5270},[5208,9279,5299],{"class":5218},[5208,9281,9282],{"class":5232},"`Payment failed: ",[5208,9284,5368],{"class":5282},[5208,9286,7306],{"class":5222},[5208,9288,5352],{"class":5373},[5208,9290,7334],{"class":5222},[5208,9292,5379],{"class":5282},[5208,9294,5382],{"class":5232},[5208,9296,5141],{"class":5218},[5208,9298,7306],{"class":5222},[5208,9300,5352],{"class":5218},[5208,9302,9303],{"class":5222},"stack",[5208,9305,5385],{"class":5218},[5208,9307,9308,9310,9312],{"class":5210,"line":5937},[5208,9309,7341],{"class":5214},[5208,9311,7344],{"class":5222},[5208,9313,5236],{"class":5218},[5208,9315,9316],{"class":5210,"line":5942},[5208,9317,5869],{"class":5218},[5208,9319,9320],{"class":5210,"line":5948},[5208,9321,5421],{"class":5218},[5208,9323,9324],{"class":5210,"line":5965},[5208,9325,5261],{"emptyLinePlaceholder":5260},[5208,9327,9328,9330,9332,9335,9337,9339,9341,9343,9345,9348,9350,9352],{"class":5210,"line":5970},[5208,9329,6914],{"class":5282},[5208,9331,6917],{"class":5282},[5208,9333,9334],{"class":5270}," chargeCard",[5208,9336,5299],{"class":5218},[5208,9338,9114],{"class":5222},[5208,9340,5311],{"class":5218},[5208,9342,5990],{"class":5286},[5208,9344,7462],{"class":5218},[5208,9346,9347],{"class":5286},"Promise",[5208,9349,8527],{"class":5218},[5208,9351,7177],{"class":5286},[5208,9353,9354],{"class":5218},"> {\n",[5208,9356,9357],{"class":5210,"line":5975},[5208,9358,9359],{"class":5391},"    \u002F\u002F Симуляція API платіжної системи\n",[5208,9361,9362,9364,9367,9369,9371,9373,9375,9378,9380,9382],{"class":5210,"line":5995},[5208,9363,5398],{"class":5214},[5208,9365,9366],{"class":5232}," `txn_",[5208,9368,5368],{"class":5282},[5208,9370,7191],{"class":5222},[5208,9372,5352],{"class":5373},[5208,9374,6371],{"class":5270},[5208,9376,9377],{"class":5373},"()",[5208,9379,5379],{"class":5282},[5208,9381,5382],{"class":5232},[5208,9383,5236],{"class":5218},[5208,9385,9386],{"class":5210,"line":6023},[5208,9387,5421],{"class":5218},[5208,9389,9390],{"class":5210,"line":6029},[5208,9391,5427],{"class":5218},[6178,9393,9395],{"id":9394},"сценарій-2-опціональне-кешування","✅ Сценарій 2: Опціональне кешування",[5135,9397,9398,9400],{},[5150,9399,9003],{},": У продакшні ви використовуєте Redis для кешування, але у розробці хочете обходитися без нього для простоти налаштування.",[5135,9402,9403,9405],{},[5150,9404,9009],{},": Кеш-менеджер як опціональна залежність:",[5199,9407,9409],{"className":5201,"code":9408,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional } from '@nestjs\u002Fcommon';\nimport { CacheManager } from '@nestjs\u002Fcache-manager';\n\n@Injectable()\nexport class UsersRepository {\n  constructor(@Optional() private readonly cache?: CacheManager) {}\n\n  async findById(userId: number) {\n    \u002F\u002F Спроба отримати з кешу\n    if (this.cache) {\n      const cached = await this.cache.get(`user:${userId}`);\n      if (cached) {\n        console.log('Cache HIT');\n        return cached;\n      }\n    }\n\n    \u002F\u002F Запит до БД\n    console.log('Cache MISS or disabled, querying database');\n    const user = await this.queryDatabase(userId);\n\n    \u002F\u002F Збереження у кеш (якщо доступний)\n    if (this.cache) {\n      await this.cache.set(`user:${userId}`, user, 3600);\n    }\n\n    return user;\n  }\n\n  private async queryDatabase(id: number) {\n    \u002F\u002F Симуляція запиту до БД\n    return { id, name: `User ${id}`, email: `user${id}@example.com` };\n  }\n}\n",[5099,9410,9411,9431,9448,9452,9460,9471,9493,9497,9514,9519,9533,9568,9578,9593,9601,9605,9609,9613,9618,9633,9657,9661,9666,9680,9718,9722,9726,9734,9738,9742,9761,9765,9807,9811],{"__ignoreMap":5204},[5208,9412,9413,9415,9417,9419,9421,9423,9425,9427,9429],{"class":5210,"line":5211},[5208,9414,5215],{"class":5214},[5208,9416,5219],{"class":5218},[5208,9418,5223],{"class":5222},[5208,9420,5141],{"class":5218},[5208,9422,5722],{"class":5222},[5208,9424,5226],{"class":5218},[5208,9426,5229],{"class":5214},[5208,9428,5233],{"class":5232},[5208,9430,5236],{"class":5218},[5208,9432,9433,9435,9437,9439,9441,9443,9446],{"class":5210,"line":5239},[5208,9434,5215],{"class":5214},[5208,9436,5219],{"class":5218},[5208,9438,6575],{"class":5222},[5208,9440,5226],{"class":5218},[5208,9442,5229],{"class":5214},[5208,9444,9445],{"class":5232}," '@nestjs\u002Fcache-manager'",[5208,9447,5236],{"class":5218},[5208,9449,9450],{"class":5210,"line":5257},[5208,9451,5261],{"emptyLinePlaceholder":5260},[5208,9453,9454,9456,9458],{"class":5210,"line":5264},[5208,9455,5267],{"class":5218},[5208,9457,5223],{"class":5270},[5208,9459,5273],{"class":5218},[5208,9461,9462,9464,9466,9469],{"class":5210,"line":5276},[5208,9463,5279],{"class":5214},[5208,9465,5283],{"class":5282},[5208,9467,9468],{"class":5286}," UsersRepository",[5208,9470,5290],{"class":5218},[5208,9472,9473,9475,9477,9479,9481,9483,9485,9487,9489,9491],{"class":5210,"line":5293},[5208,9474,5296],{"class":5282},[5208,9476,6266],{"class":5218},[5208,9478,5722],{"class":5270},[5208,9480,5785],{"class":5218},[5208,9482,5302],{"class":5282},[5208,9484,5305],{"class":5282},[5208,9486,6624],{"class":5222},[5208,9488,5794],{"class":5218},[5208,9490,6575],{"class":5286},[5208,9492,5316],{"class":5218},[5208,9494,9495],{"class":5210,"line":5319},[5208,9496,5261],{"emptyLinePlaceholder":5260},[5208,9498,9499,9501,9504,9506,9508,9510,9512],{"class":5210,"line":5324},[5208,9500,5327],{"class":5282},[5208,9502,9503],{"class":5270}," findById",[5208,9505,5299],{"class":5218},[5208,9507,5985],{"class":5222},[5208,9509,5311],{"class":5218},[5208,9511,5990],{"class":5286},[5208,9513,5343],{"class":5218},[5208,9515,9516],{"class":5210,"line":5346},[5208,9517,9518],{"class":5391},"    \u002F\u002F Спроба отримати з кешу\n",[5208,9520,9521,9523,9525,9527,9529,9531],{"class":5210,"line":5388},[5208,9522,5807],{"class":5214},[5208,9524,5160],{"class":5218},[5208,9526,5812],{"class":5282},[5208,9528,5352],{"class":5218},[5208,9530,6670],{"class":5222},[5208,9532,5343],{"class":5218},[5208,9534,9535,9537,9539,9541,9543,9545,9547,9549,9551,9553,9555,9558,9560,9562,9564,9566],{"class":5210,"line":5395},[5208,9536,6677],{"class":5282},[5208,9538,6680],{"class":6357},[5208,9540,6683],{"class":5218},[5208,9542,6686],{"class":5214},[5208,9544,6689],{"class":5282},[5208,9546,5352],{"class":5218},[5208,9548,6670],{"class":5222},[5208,9550,5352],{"class":5218},[5208,9552,6698],{"class":5270},[5208,9554,5299],{"class":5218},[5208,9556,9557],{"class":5232},"`user:",[5208,9559,5368],{"class":5282},[5208,9561,5985],{"class":5222},[5208,9563,5379],{"class":5282},[5208,9565,5382],{"class":5232},[5208,9567,5385],{"class":5218},[5208,9569,9570,9572,9574,9576],{"class":5210,"line":5418},[5208,9571,6718],{"class":5214},[5208,9573,5160],{"class":5218},[5208,9575,6723],{"class":5222},[5208,9577,5343],{"class":5218},[5208,9579,9580,9582,9584,9586,9588,9591],{"class":5210,"line":5424},[5208,9581,6730],{"class":5222},[5208,9583,5352],{"class":5218},[5208,9585,5360],{"class":5270},[5208,9587,5299],{"class":5218},[5208,9589,9590],{"class":5232},"'Cache HIT'",[5208,9592,5385],{"class":5218},[5208,9594,9595,9597,9599],{"class":5210,"line":5872},[5208,9596,6754],{"class":5214},[5208,9598,6680],{"class":5222},[5208,9600,5236],{"class":5218},[5208,9602,9603],{"class":5210,"line":5877},[5208,9604,6763],{"class":5218},[5208,9606,9607],{"class":5210,"line":5882},[5208,9608,5869],{"class":5218},[5208,9610,9611],{"class":5210,"line":5899},[5208,9612,5261],{"emptyLinePlaceholder":5260},[5208,9614,9615],{"class":5210,"line":5905},[5208,9616,9617],{"class":5391},"    \u002F\u002F Запит до БД\n",[5208,9619,9620,9622,9624,9626,9628,9631],{"class":5210,"line":5937},[5208,9621,6781],{"class":5222},[5208,9623,5352],{"class":5218},[5208,9625,5360],{"class":5270},[5208,9627,5299],{"class":5218},[5208,9629,9630],{"class":5232},"'Cache MISS or disabled, querying database'",[5208,9632,5385],{"class":5218},[5208,9634,9635,9637,9640,9642,9644,9646,9648,9651,9653,9655],{"class":5210,"line":5942},[5208,9636,6354],{"class":5282},[5208,9638,9639],{"class":6357}," user",[5208,9641,6683],{"class":5218},[5208,9643,6686],{"class":5214},[5208,9645,6689],{"class":5282},[5208,9647,5352],{"class":5218},[5208,9649,9650],{"class":5270},"queryDatabase",[5208,9652,5299],{"class":5218},[5208,9654,5985],{"class":5222},[5208,9656,5385],{"class":5218},[5208,9658,9659],{"class":5210,"line":5948},[5208,9660,5261],{"emptyLinePlaceholder":5260},[5208,9662,9663],{"class":5210,"line":5965},[5208,9664,9665],{"class":5391},"    \u002F\u002F Збереження у кеш (якщо доступний)\n",[5208,9667,9668,9670,9672,9674,9676,9678],{"class":5210,"line":5970},[5208,9669,5807],{"class":5214},[5208,9671,5160],{"class":5218},[5208,9673,5812],{"class":5282},[5208,9675,5352],{"class":5218},[5208,9677,6670],{"class":5222},[5208,9679,5343],{"class":5218},[5208,9681,9682,9684,9686,9688,9690,9692,9694,9696,9698,9700,9702,9704,9706,9708,9711,9713,9716],{"class":5210,"line":5975},[5208,9683,6844],{"class":5214},[5208,9685,6689],{"class":5282},[5208,9687,5352],{"class":5218},[5208,9689,6670],{"class":5222},[5208,9691,5352],{"class":5218},[5208,9693,6855],{"class":5270},[5208,9695,5299],{"class":5218},[5208,9697,9557],{"class":5232},[5208,9699,5368],{"class":5282},[5208,9701,5985],{"class":5222},[5208,9703,5379],{"class":5282},[5208,9705,5382],{"class":5232},[5208,9707,5141],{"class":5218},[5208,9709,9710],{"class":5222},"user",[5208,9712,5141],{"class":5218},[5208,9714,9715],{"class":5406},"3600",[5208,9717,5385],{"class":5218},[5208,9719,9720],{"class":5210,"line":5995},[5208,9721,5869],{"class":5218},[5208,9723,9724],{"class":5210,"line":6023},[5208,9725,5261],{"emptyLinePlaceholder":5260},[5208,9727,9728,9730,9732],{"class":5210,"line":6029},[5208,9729,5398],{"class":5214},[5208,9731,9639],{"class":5222},[5208,9733,5236],{"class":5218},[5208,9735,9736],{"class":5210,"line":6035},[5208,9737,5421],{"class":5218},[5208,9739,9740],{"class":5210,"line":6040},[5208,9741,5261],{"emptyLinePlaceholder":5260},[5208,9743,9744,9746,9748,9751,9753,9755,9757,9759],{"class":5210,"line":6911},[5208,9745,6914],{"class":5282},[5208,9747,6917],{"class":5282},[5208,9749,9750],{"class":5270}," queryDatabase",[5208,9752,5299],{"class":5218},[5208,9754,6417],{"class":5222},[5208,9756,5311],{"class":5218},[5208,9758,5990],{"class":5286},[5208,9760,5343],{"class":5218},[5208,9762,9763],{"class":5210,"line":6933},[5208,9764,6936],{"class":5391},[5208,9766,9767,9769,9771,9773,9775,9777,9780,9782,9784,9786,9788,9790,9793,9796,9798,9800,9802,9805],{"class":5210,"line":6939},[5208,9768,5398],{"class":5214},[5208,9770,5219],{"class":5218},[5208,9772,6417],{"class":5222},[5208,9774,5141],{"class":5218},[5208,9776,6950],{"class":5222},[5208,9778,9779],{"class":5232}," `User ",[5208,9781,5368],{"class":5282},[5208,9783,6417],{"class":5222},[5208,9785,5379],{"class":5282},[5208,9787,5382],{"class":5232},[5208,9789,5141],{"class":5218},[5208,9791,9792],{"class":5222},"email:",[5208,9794,9795],{"class":5232}," `user",[5208,9797,5368],{"class":5282},[5208,9799,6417],{"class":5222},[5208,9801,5379],{"class":5282},[5208,9803,9804],{"class":5232},"@example.com`",[5208,9806,5415],{"class":5218},[5208,9808,9809],{"class":5210,"line":6974},[5208,9810,5421],{"class":5218},[5208,9812,9813],{"class":5210,"line":6979},[5208,9814,5427],{"class":5218},[6178,9816,9818],{"id":9817},"сценарій-3-плагіни-та-розширення","✅ Сценарій 3: Плагіни та розширення",[5135,9820,9821,9823],{},[5150,9822,9003],{},": Ваш застосунок підтримує опціональні плагіни (наприклад, інтеграцію з аналітикою, системами оплати, повідомленнями).",[5135,9825,9826,9828],{},[5150,9827,9009],{},": Кожен плагін — опціональна залежність:",[5199,9830,9832],{"className":5201,"code":9831,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional } from '@nestjs\u002Fcommon';\nimport { AnalyticsService } from '.\u002Fanalytics.service';\nimport { NotificationService } from '.\u002Fnotification.service';\n\n@Injectable()\nexport class OrderCompletionHandler {\n  constructor(\n    @Optional() private readonly analytics?: AnalyticsService,\n    @Optional() private readonly notifications?: NotificationService\n  ) {}\n\n  async handleOrderCompleted(orderId: number, userId: number) {\n    console.log(`Order ${orderId} completed for user ${userId}`);\n\n    \u002F\u002F Відправка аналітики (якщо модуль підключено)\n    this.analytics?.trackEvent('order_completed', {\n      orderId,\n      userId,\n      timestamp: Date.now()\n    });\n\n    \u002F\u002F Відправка повідомлення (якщо модуль підключено)\n    await this.notifications?.sendEmail(\n      userId,\n      'Order Completed',\n      `Your order #${orderId} has been successfully completed.`\n    );\n\n    \u002F\u002F Основна логіка виконується завжди\n    await this.updateOrderStatus(orderId, 'completed');\n  }\n\n  private async updateOrderStatus(orderId: number, status: string) {\n    console.log(`Updating order ${orderId} to status: ${status}`);\n  }\n}\n",[5099,9833,9834,9854,9872,9890,9894,9902,9913,9919,9940,9960,9965,9969,9994,10026,10030,10035,10056,10063,10070,10083,10088,10092,10097,10116,10122,10129,10143,10147,10151,10156,10178,10182,10186,10214,10246,10250],{"__ignoreMap":5204},[5208,9835,9836,9838,9840,9842,9844,9846,9848,9850,9852],{"class":5210,"line":5211},[5208,9837,5215],{"class":5214},[5208,9839,5219],{"class":5218},[5208,9841,5223],{"class":5222},[5208,9843,5141],{"class":5218},[5208,9845,5722],{"class":5222},[5208,9847,5226],{"class":5218},[5208,9849,5229],{"class":5214},[5208,9851,5233],{"class":5232},[5208,9853,5236],{"class":5218},[5208,9855,9856,9858,9860,9863,9865,9867,9870],{"class":5210,"line":5239},[5208,9857,5215],{"class":5214},[5208,9859,5219],{"class":5218},[5208,9861,9862],{"class":5222},"AnalyticsService",[5208,9864,5226],{"class":5218},[5208,9866,5229],{"class":5214},[5208,9868,9869],{"class":5232}," '.\u002Fanalytics.service'",[5208,9871,5236],{"class":5218},[5208,9873,9874,9876,9878,9881,9883,9885,9888],{"class":5210,"line":5257},[5208,9875,5215],{"class":5214},[5208,9877,5219],{"class":5218},[5208,9879,9880],{"class":5222},"NotificationService",[5208,9882,5226],{"class":5218},[5208,9884,5229],{"class":5214},[5208,9886,9887],{"class":5232}," '.\u002Fnotification.service'",[5208,9889,5236],{"class":5218},[5208,9891,9892],{"class":5210,"line":5264},[5208,9893,5261],{"emptyLinePlaceholder":5260},[5208,9895,9896,9898,9900],{"class":5210,"line":5276},[5208,9897,5267],{"class":5218},[5208,9899,5223],{"class":5270},[5208,9901,5273],{"class":5218},[5208,9903,9904,9906,9908,9911],{"class":5210,"line":5293},[5208,9905,5279],{"class":5214},[5208,9907,5283],{"class":5282},[5208,9909,9910],{"class":5286}," OrderCompletionHandler",[5208,9912,5290],{"class":5218},[5208,9914,9915,9917],{"class":5210,"line":5319},[5208,9916,5296],{"class":5282},[5208,9918,5775],{"class":5218},[5208,9920,9921,9923,9925,9927,9929,9931,9934,9936,9938],{"class":5210,"line":5324},[5208,9922,5780],{"class":5218},[5208,9924,5722],{"class":5270},[5208,9926,5785],{"class":5218},[5208,9928,5302],{"class":5282},[5208,9930,5305],{"class":5282},[5208,9932,9933],{"class":5222}," analytics",[5208,9935,5794],{"class":5218},[5208,9937,9862],{"class":5286},[5208,9939,7940],{"class":5218},[5208,9941,9942,9944,9946,9948,9950,9952,9955,9957],{"class":5210,"line":5346},[5208,9943,5780],{"class":5218},[5208,9945,5722],{"class":5270},[5208,9947,5785],{"class":5218},[5208,9949,5302],{"class":5282},[5208,9951,5305],{"class":5282},[5208,9953,9954],{"class":5222}," notifications",[5208,9956,5794],{"class":5218},[5208,9958,9959],{"class":5286},"NotificationService\n",[5208,9961,9962],{"class":5210,"line":5388},[5208,9963,9964],{"class":5218},"  ) {}\n",[5208,9966,9967],{"class":5210,"line":5395},[5208,9968,5261],{"emptyLinePlaceholder":5260},[5208,9970,9971,9973,9976,9978,9980,9982,9984,9986,9988,9990,9992],{"class":5210,"line":5418},[5208,9972,5327],{"class":5282},[5208,9974,9975],{"class":5270}," handleOrderCompleted",[5208,9977,5299],{"class":5218},[5208,9979,6451],{"class":5222},[5208,9981,5311],{"class":5218},[5208,9983,5990],{"class":5286},[5208,9985,5141],{"class":5218},[5208,9987,5985],{"class":5222},[5208,9989,5311],{"class":5218},[5208,9991,5990],{"class":5286},[5208,9993,5343],{"class":5218},[5208,9995,9996,9998,10000,10002,10004,10007,10009,10011,10013,10016,10018,10020,10022,10024],{"class":5210,"line":5424},[5208,9997,6781],{"class":5222},[5208,9999,5352],{"class":5218},[5208,10001,5360],{"class":5270},[5208,10003,5299],{"class":5218},[5208,10005,10006],{"class":5232},"`Order ",[5208,10008,5368],{"class":5282},[5208,10010,6451],{"class":5222},[5208,10012,5379],{"class":5282},[5208,10014,10015],{"class":5232}," completed for user ",[5208,10017,5368],{"class":5282},[5208,10019,5985],{"class":5222},[5208,10021,5379],{"class":5282},[5208,10023,5382],{"class":5232},[5208,10025,5385],{"class":5218},[5208,10027,10028],{"class":5210,"line":5872},[5208,10029,5261],{"emptyLinePlaceholder":5260},[5208,10031,10032],{"class":5210,"line":5877},[5208,10033,10034],{"class":5391},"    \u002F\u002F Відправка аналітики (якщо модуль підключено)\n",[5208,10036,10037,10039,10041,10044,10046,10049,10051,10054],{"class":5210,"line":5882},[5208,10038,5349],{"class":5282},[5208,10040,5352],{"class":5218},[5208,10042,10043],{"class":5222},"analytics",[5208,10045,5914],{"class":5218},[5208,10047,10048],{"class":5270},"trackEvent",[5208,10050,5299],{"class":5218},[5208,10052,10053],{"class":5232},"'order_completed'",[5208,10055,8254],{"class":5218},[5208,10057,10058,10061],{"class":5210,"line":5899},[5208,10059,10060],{"class":5222},"      orderId",[5208,10062,7940],{"class":5218},[5208,10064,10065,10068],{"class":5210,"line":5905},[5208,10066,10067],{"class":5222},"      userId",[5208,10069,7940],{"class":5218},[5208,10071,10072,10075,10077,10079,10081],{"class":5210,"line":5937},[5208,10073,10074],{"class":5222},"      timestamp:",[5208,10076,6366],{"class":5222},[5208,10078,5352],{"class":5218},[5208,10080,6371],{"class":5270},[5208,10082,5273],{"class":5218},[5208,10084,10085],{"class":5210,"line":5942},[5208,10086,10087],{"class":5218},"    });\n",[5208,10089,10090],{"class":5210,"line":5948},[5208,10091,5261],{"emptyLinePlaceholder":5260},[5208,10093,10094],{"class":5210,"line":5965},[5208,10095,10096],{"class":5391},"    \u002F\u002F Відправка повідомлення (якщо модуль підключено)\n",[5208,10098,10099,10102,10104,10106,10109,10111,10114],{"class":5210,"line":5970},[5208,10100,10101],{"class":5214},"    await",[5208,10103,6689],{"class":5282},[5208,10105,5352],{"class":5218},[5208,10107,10108],{"class":5222},"notifications",[5208,10110,5914],{"class":5218},[5208,10112,10113],{"class":5270},"sendEmail",[5208,10115,5775],{"class":5218},[5208,10117,10118,10120],{"class":5210,"line":5975},[5208,10119,10067],{"class":5222},[5208,10121,7940],{"class":5218},[5208,10123,10124,10127],{"class":5210,"line":5995},[5208,10125,10126],{"class":5232},"      'Order Completed'",[5208,10128,7940],{"class":5218},[5208,10130,10131,10134,10136,10138,10140],{"class":5210,"line":6023},[5208,10132,10133],{"class":5232},"      `Your order #",[5208,10135,5368],{"class":5282},[5208,10137,6451],{"class":5222},[5208,10139,5379],{"class":5282},[5208,10141,10142],{"class":5232}," has been successfully completed.`\n",[5208,10144,10145],{"class":5210,"line":6029},[5208,10146,8200],{"class":5218},[5208,10148,10149],{"class":5210,"line":6035},[5208,10150,5261],{"emptyLinePlaceholder":5260},[5208,10152,10153],{"class":5210,"line":6040},[5208,10154,10155],{"class":5391},"    \u002F\u002F Основна логіка виконується завжди\n",[5208,10157,10158,10160,10162,10164,10167,10169,10171,10173,10176],{"class":5210,"line":6911},[5208,10159,10101],{"class":5214},[5208,10161,6689],{"class":5282},[5208,10163,5352],{"class":5218},[5208,10165,10166],{"class":5270},"updateOrderStatus",[5208,10168,5299],{"class":5218},[5208,10170,6451],{"class":5222},[5208,10172,5141],{"class":5218},[5208,10174,10175],{"class":5232},"'completed'",[5208,10177,5385],{"class":5218},[5208,10179,10180],{"class":5210,"line":6933},[5208,10181,5421],{"class":5218},[5208,10183,10184],{"class":5210,"line":6939},[5208,10185,5261],{"emptyLinePlaceholder":5260},[5208,10187,10188,10190,10192,10195,10197,10199,10201,10203,10205,10208,10210,10212],{"class":5210,"line":6974},[5208,10189,6914],{"class":5282},[5208,10191,6917],{"class":5282},[5208,10193,10194],{"class":5270}," updateOrderStatus",[5208,10196,5299],{"class":5218},[5208,10198,6451],{"class":5222},[5208,10200,5311],{"class":5218},[5208,10202,5990],{"class":5286},[5208,10204,5141],{"class":5218},[5208,10206,10207],{"class":5222},"status",[5208,10209,5311],{"class":5218},[5208,10211,7177],{"class":5286},[5208,10213,5343],{"class":5218},[5208,10215,10216,10218,10220,10222,10224,10227,10229,10231,10233,10236,10238,10240,10242,10244],{"class":5210,"line":6979},[5208,10217,6781],{"class":5222},[5208,10219,5352],{"class":5218},[5208,10221,5360],{"class":5270},[5208,10223,5299],{"class":5218},[5208,10225,10226],{"class":5232},"`Updating order ",[5208,10228,5368],{"class":5282},[5208,10230,6451],{"class":5222},[5208,10232,5379],{"class":5282},[5208,10234,10235],{"class":5232}," to status: ",[5208,10237,5368],{"class":5282},[5208,10239,10207],{"class":5222},[5208,10241,5379],{"class":5282},[5208,10243,5382],{"class":5232},[5208,10245,5385],{"class":5218},[5208,10247,10248],{"class":5210,"line":7407},[5208,10249,5421],{"class":5218},[5208,10251,10252],{"class":5210,"line":7412},[5208,10253,5427],{"class":5218},[6178,10255,10257],{"id":10256},"коли-не-використовувати-опціональні-залежності","❌ Коли НЕ використовувати опціональні залежності",[5135,10259,10260],{},[5150,10261,10262],{},"1. Критичні інфраструктурні залежності",[5135,10264,10265,10266,10269],{},"Підключення до бази даних, системи черг, файлового сховища — ці залежності ",[5150,10267,10268],{},"мають бути обов'язковими",". Якщо вони відсутні, застосунок не може виконувати свої основні функції:",[5199,10271,10273],{"className":5201,"code":10272,"language":5203,"meta":5204,"style":5204},"\u002F\u002F ❌ НЕПРАВИЛЬНО: база даних не може бути опціональною\nconstructor(@Optional() private readonly db?: DataSource) {}\n\n\u002F\u002F ✅ ПРАВИЛЬНО: база даних — критична залежність\nconstructor(private readonly db: DataSource) {}\n",[5099,10274,10275,10280,10305,10309,10314],{"__ignoreMap":5204},[5208,10276,10277],{"class":5210,"line":5211},[5208,10278,10279],{"class":5391},"\u002F\u002F ❌ НЕПРАВИЛЬНО: база даних не може бути опціональною\n",[5208,10281,10282,10285,10287,10289,10291,10293,10295,10298,10300,10303],{"class":5210,"line":5239},[5208,10283,10284],{"class":5270},"constructor",[5208,10286,6266],{"class":5218},[5208,10288,5722],{"class":5270},[5208,10290,5785],{"class":5218},[5208,10292,5302],{"class":5222},[5208,10294,5305],{"class":5222},[5208,10296,10297],{"class":5222}," db",[5208,10299,5794],{"class":5218},[5208,10301,10302],{"class":5222},"DataSource",[5208,10304,5316],{"class":5218},[5208,10306,10307],{"class":5210,"line":5257},[5208,10308,5261],{"emptyLinePlaceholder":5260},[5208,10310,10311],{"class":5210,"line":5264},[5208,10312,10313],{"class":5391},"\u002F\u002F ✅ ПРАВИЛЬНО: база даних — критична залежність\n",[5208,10315,10316,10318,10320,10322,10324,10326,10328,10330],{"class":5210,"line":5276},[5208,10317,10284],{"class":5270},[5208,10319,5299],{"class":5218},[5208,10321,5302],{"class":5222},[5208,10323,5305],{"class":5222},[5208,10325,10297],{"class":5222},[5208,10327,5311],{"class":5218},[5208,10329,10302],{"class":5222},[5208,10331,5316],{"class":5218},[5135,10333,10334],{},[5150,10335,10336],{},"2. Бізнес-логіка залежить від провайдера",[5135,10338,10339],{},"Якщо сервіс не може виконати свою основну роботу без залежності, вона має бути обов'язковою:",[5199,10341,10343],{"className":5201,"code":10342,"language":5203,"meta":5204,"style":5204},"\u002F\u002F ❌ НЕПРАВИЛЬНО: сервіс оплати не може працювати без платіжного шлюзу\n@Injectable()\nexport class PaymentService {\n  constructor(@Optional() private readonly gateway?: PaymentGateway) {}\n  \n  async charge(amount: number) {\n    \u002F\u002F Що робити, якщо gateway відсутній?\n    return this.gateway?.charge(amount);\n  }\n}\n\n\u002F\u002F ✅ ПРАВИЛЬНО: платіжний шлюз — обов'язкова залежність\n@Injectable()\nexport class PaymentService {\n  constructor(private readonly gateway: PaymentGateway) {}\n  \n  async charge(amount: number) {\n    return this.gateway.charge(amount);\n  }\n}\n",[5099,10344,10345,10350,10358,10368,10392,10397,10414,10419,10441,10445,10449,10453,10458,10466,10476,10494,10498,10514,10534,10538],{"__ignoreMap":5204},[5208,10346,10347],{"class":5210,"line":5211},[5208,10348,10349],{"class":5391},"\u002F\u002F ❌ НЕПРАВИЛЬНО: сервіс оплати не може працювати без платіжного шлюзу\n",[5208,10351,10352,10354,10356],{"class":5210,"line":5239},[5208,10353,5267],{"class":5218},[5208,10355,5223],{"class":5270},[5208,10357,5273],{"class":5218},[5208,10359,10360,10362,10364,10366],{"class":5210,"line":5257},[5208,10361,5279],{"class":5214},[5208,10363,5283],{"class":5282},[5208,10365,9074],{"class":5286},[5208,10367,5290],{"class":5218},[5208,10369,10370,10372,10374,10376,10378,10380,10382,10385,10387,10390],{"class":5210,"line":5264},[5208,10371,5296],{"class":5282},[5208,10373,6266],{"class":5218},[5208,10375,5722],{"class":5270},[5208,10377,5785],{"class":5218},[5208,10379,5302],{"class":5282},[5208,10381,5305],{"class":5282},[5208,10383,10384],{"class":5222}," gateway",[5208,10386,5794],{"class":5218},[5208,10388,10389],{"class":5286},"PaymentGateway",[5208,10391,5316],{"class":5218},[5208,10393,10394],{"class":5210,"line":5276},[5208,10395,10396],{"class":5218},"  \n",[5208,10398,10399,10401,10404,10406,10408,10410,10412],{"class":5210,"line":5293},[5208,10400,5327],{"class":5282},[5208,10402,10403],{"class":5270}," charge",[5208,10405,5299],{"class":5218},[5208,10407,9114],{"class":5222},[5208,10409,5311],{"class":5218},[5208,10411,5990],{"class":5286},[5208,10413,5343],{"class":5218},[5208,10415,10416],{"class":5210,"line":5319},[5208,10417,10418],{"class":5391},"    \u002F\u002F Що робити, якщо gateway відсутній?\n",[5208,10420,10421,10423,10425,10427,10430,10432,10435,10437,10439],{"class":5210,"line":5324},[5208,10422,5398],{"class":5214},[5208,10424,6689],{"class":5282},[5208,10426,5352],{"class":5218},[5208,10428,10429],{"class":5222},"gateway",[5208,10431,5914],{"class":5218},[5208,10433,10434],{"class":5270},"charge",[5208,10436,5299],{"class":5218},[5208,10438,9114],{"class":5222},[5208,10440,5385],{"class":5218},[5208,10442,10443],{"class":5210,"line":5346},[5208,10444,5421],{"class":5218},[5208,10446,10447],{"class":5210,"line":5388},[5208,10448,5427],{"class":5218},[5208,10450,10451],{"class":5210,"line":5395},[5208,10452,5261],{"emptyLinePlaceholder":5260},[5208,10454,10455],{"class":5210,"line":5418},[5208,10456,10457],{"class":5391},"\u002F\u002F ✅ ПРАВИЛЬНО: платіжний шлюз — обов'язкова залежність\n",[5208,10459,10460,10462,10464],{"class":5210,"line":5424},[5208,10461,5267],{"class":5218},[5208,10463,5223],{"class":5270},[5208,10465,5273],{"class":5218},[5208,10467,10468,10470,10472,10474],{"class":5210,"line":5872},[5208,10469,5279],{"class":5214},[5208,10471,5283],{"class":5282},[5208,10473,9074],{"class":5286},[5208,10475,5290],{"class":5218},[5208,10477,10478,10480,10482,10484,10486,10488,10490,10492],{"class":5210,"line":5877},[5208,10479,5296],{"class":5282},[5208,10481,5299],{"class":5218},[5208,10483,5302],{"class":5282},[5208,10485,5305],{"class":5282},[5208,10487,10384],{"class":5222},[5208,10489,5311],{"class":5218},[5208,10491,10389],{"class":5286},[5208,10493,5316],{"class":5218},[5208,10495,10496],{"class":5210,"line":5882},[5208,10497,10396],{"class":5218},[5208,10499,10500,10502,10504,10506,10508,10510,10512],{"class":5210,"line":5899},[5208,10501,5327],{"class":5282},[5208,10503,10403],{"class":5270},[5208,10505,5299],{"class":5218},[5208,10507,9114],{"class":5222},[5208,10509,5311],{"class":5218},[5208,10511,5990],{"class":5286},[5208,10513,5343],{"class":5218},[5208,10515,10516,10518,10520,10522,10524,10526,10528,10530,10532],{"class":5210,"line":5905},[5208,10517,5398],{"class":5214},[5208,10519,6689],{"class":5282},[5208,10521,5352],{"class":5218},[5208,10523,10429],{"class":5222},[5208,10525,5352],{"class":5218},[5208,10527,10434],{"class":5270},[5208,10529,5299],{"class":5218},[5208,10531,9114],{"class":5222},[5208,10533,5385],{"class":5218},[5208,10535,10536],{"class":5210,"line":5937},[5208,10537,5421],{"class":5218},[5208,10539,10540],{"class":5210,"line":5942},[5208,10541,5427],{"class":5218},[10543,10544,10545,10546,10549],"warning",{},"Використовуйте опціональні залежності лише для ",[5150,10547,10548],{},"другорядної функціональності",": логування, кешування, аналітика, повідомлення. Критичні компоненти, без яких застосунок не може функціонувати, мають бути обов'язковими залежностями.",[5128,10551],{},[5084,10553,10555],{"id":10554},"комбінування-optional-та-inject-токенізовані-опціональні-залежності","Комбінування @Optional та @Inject: токенізовані опціональні залежності",[5135,10557,10558,10559,10561,10562,5352],{},"У попередній лекції ми розглянули використання токенів (рядкових та символьних) для ідентифікації провайдерів, які не є класами. Опціональні залежності чудово комбінуються з токенами через одночасне застосування декораторів ",[5099,10560,5101],{}," та ",[5099,10563,5633],{},[6178,10565,10567],{"id":10566},"синтаксис-порядок-декораторів-має-значення","Синтаксис: порядок декораторів має значення",[5135,10569,10570,10571,10574,10575,10577,10578,10580],{},"При комбінуванні декораторів ",[5150,10572,10573],{},"порядок їх застосування важливий",". Загальне правило: ",[5099,10576,5633],{}," завжди йде першим (найближче до параметра), а ",[5099,10579,5101],{}," — перед ним:",[5199,10582,10584],{"className":5201,"code":10583,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional, Inject } from '@nestjs\u002Fcommon';\n\n@Injectable()\nexport class ExampleService {\n  constructor(\n    @Optional()                    \u002F\u002F Позначаємо як опціональне\n    @Inject('SOME_TOKEN')          \u002F\u002F Вказуємо токен\n    private readonly dependency?: any\n  ) {}\n}\n",[5099,10585,10586,10610,10614,10622,10633,10639,10651,10668,10683,10687],{"__ignoreMap":5204},[5208,10587,10588,10590,10592,10594,10596,10598,10600,10602,10604,10606,10608],{"class":5210,"line":5211},[5208,10589,5215],{"class":5214},[5208,10591,5219],{"class":5218},[5208,10593,5223],{"class":5222},[5208,10595,5141],{"class":5218},[5208,10597,5722],{"class":5222},[5208,10599,5141],{"class":5218},[5208,10601,7850],{"class":5222},[5208,10603,5226],{"class":5218},[5208,10605,5229],{"class":5214},[5208,10607,5233],{"class":5232},[5208,10609,5236],{"class":5218},[5208,10611,10612],{"class":5210,"line":5239},[5208,10613,5261],{"emptyLinePlaceholder":5260},[5208,10615,10616,10618,10620],{"class":5210,"line":5257},[5208,10617,5267],{"class":5218},[5208,10619,5223],{"class":5270},[5208,10621,5273],{"class":5218},[5208,10623,10624,10626,10628,10631],{"class":5210,"line":5264},[5208,10625,5279],{"class":5214},[5208,10627,5283],{"class":5282},[5208,10629,10630],{"class":5286}," ExampleService",[5208,10632,5290],{"class":5218},[5208,10634,10635,10637],{"class":5210,"line":5276},[5208,10636,5296],{"class":5282},[5208,10638,5775],{"class":5218},[5208,10640,10641,10643,10645,10648],{"class":5210,"line":5293},[5208,10642,5780],{"class":5218},[5208,10644,5722],{"class":5270},[5208,10646,10647],{"class":5218},"()                    ",[5208,10649,10650],{"class":5391},"\u002F\u002F Позначаємо як опціональне\n",[5208,10652,10653,10655,10657,10659,10662,10665],{"class":5210,"line":5319},[5208,10654,5780],{"class":5218},[5208,10656,7850],{"class":5270},[5208,10658,5299],{"class":5218},[5208,10660,10661],{"class":5232},"'SOME_TOKEN'",[5208,10663,10664],{"class":5218},")          ",[5208,10666,10667],{"class":5391},"\u002F\u002F Вказуємо токен\n",[5208,10669,10670,10673,10675,10678,10680],{"class":5210,"line":5324},[5208,10671,10672],{"class":5282},"    private",[5208,10674,5305],{"class":5282},[5208,10676,10677],{"class":5222}," dependency",[5208,10679,5794],{"class":5218},[5208,10681,10682],{"class":5286},"any\n",[5208,10684,10685],{"class":5210,"line":5346},[5208,10686,9964],{"class":5218},[5208,10688,10689],{"class":5210,"line":5388},[5208,10690,5427],{"class":5218},[5135,10692,10693,10694,10697,10698,10701,10702,5160,10705,10708],{},"Ця послідовність відображає логіку обробки: спочатку NestJS визначає ",[5150,10695,10696],{},"який саме провайдер"," запитується (",[5099,10699,10700],{},"@Inject","), а потім дізнається, що його відсутність ",[5150,10703,10704],{},"не є критичною",[5099,10706,10707],{},"@Optional",").",[6178,10710,10712],{"id":10711},"приклад-опціональна-конфігурація-через-symbol-токен","Приклад: опціональна конфігурація через Symbol-токен",[5199,10714,10716],{"className":5201,"code":10715,"language":5203,"meta":5204,"style":5204},"\u002F\u002F config\u002Fconfig.tokens.ts\nexport const CONFIG_TOKENS = {\n  ANALYTICS: Symbol('AnalyticsConfig'),\n  FEATURE_FLAGS: Symbol('FeatureFlags'),\n  RATE_LIMITS: Symbol('RateLimits')\n} as const;\n\n\u002F\u002F config\u002Fanalytics.config.ts\nexport interface AnalyticsConfig {\n  enabled: boolean;\n  trackingId: string;\n  sampleRate: number;\n}\n\n\u002F\u002F services\u002Fanalytics-tracker.service.ts\nimport { Injectable, Optional, Inject } from '@nestjs\u002Fcommon';\nimport { CONFIG_TOKENS } from '..\u002Fconfig\u002Fconfig.tokens';\nimport { AnalyticsConfig } from '..\u002Fconfig\u002Fanalytics.config';\n\n@Injectable()\nexport class AnalyticsTracker {\n  private readonly config: AnalyticsConfig | null;\n\n  constructor(\n    @Optional()\n    @Inject(CONFIG_TOKENS.ANALYTICS)\n    analyticsConfig?: AnalyticsConfig\n  ) {\n    this.config = analyticsConfig ?? null;\n\n    if (this.config?.enabled) {\n      console.log(`Analytics enabled with tracking ID: ${this.config.trackingId}`);\n    } else {\n      console.log('Analytics disabled or not configured');\n    }\n  }\n\n  trackEvent(eventName: string, properties?: Record\u003Cstring, any>): void {\n    if (!this.config?.enabled) {\n      \u002F\u002F Аналітика вимкнена — нічого не робимо\n      return;\n    }\n\n    \u002F\u002F Перевірка sample rate (відправляємо не всі події)\n    if (Math.random() > this.config.sampleRate) {\n      return;\n    }\n\n    console.log(`[Analytics] Event: ${eventName}`, properties);\n    \u002F\u002F Реальна відправка даних у аналітичну систему\n  }\n\n  trackPageView(url: string): void {\n    if (!this.config?.enabled) return;\n\n    console.log(`[Analytics] Page view: ${url}`);\n  }\n}\n",[5099,10717,10718,10723,10735,10751,10765,10779,10790,10794,10799,10811,10823,10834,10845,10849,10853,10858,10882,10900,10918,10922,10930,10941,10959,10963,10969,10977,10994,11004,11008,11027,11031,11050,11082,11090,11105,11109,11113,11117,11156,11175,11180,11186,11190,11194,11199,11229,11235,11239,11243,11271,11277,11282,11287,11308,11333,11338,11362,11367],{"__ignoreMap":5204},[5208,10719,10720],{"class":5210,"line":5211},[5208,10721,10722],{"class":5391},"\u002F\u002F config\u002Fconfig.tokens.ts\n",[5208,10724,10725,10727,10730,10733],{"class":5210,"line":5239},[5208,10726,5279],{"class":5214},[5208,10728,10729],{"class":5282}," const",[5208,10731,10732],{"class":6357}," CONFIG_TOKENS",[5208,10734,7929],{"class":5218},[5208,10736,10737,10740,10743,10745,10748],{"class":5210,"line":5257},[5208,10738,10739],{"class":5222},"  ANALYTICS:",[5208,10741,10742],{"class":5270}," Symbol",[5208,10744,5299],{"class":5218},[5208,10746,10747],{"class":5232},"'AnalyticsConfig'",[5208,10749,10750],{"class":5218},"),\n",[5208,10752,10753,10756,10758,10760,10763],{"class":5210,"line":5264},[5208,10754,10755],{"class":5222},"  FEATURE_FLAGS:",[5208,10757,10742],{"class":5270},[5208,10759,5299],{"class":5218},[5208,10761,10762],{"class":5232},"'FeatureFlags'",[5208,10764,10750],{"class":5218},[5208,10766,10767,10770,10772,10774,10777],{"class":5210,"line":5276},[5208,10768,10769],{"class":5222},"  RATE_LIMITS:",[5208,10771,10742],{"class":5270},[5208,10773,5299],{"class":5218},[5208,10775,10776],{"class":5232},"'RateLimits'",[5208,10778,8033],{"class":5218},[5208,10780,10781,10784,10786,10788],{"class":5210,"line":5293},[5208,10782,10783],{"class":5218},"} ",[5208,10785,8724],{"class":5214},[5208,10787,10729],{"class":5282},[5208,10789,5236],{"class":5218},[5208,10791,10792],{"class":5210,"line":5319},[5208,10793,5261],{"emptyLinePlaceholder":5260},[5208,10795,10796],{"class":5210,"line":5324},[5208,10797,10798],{"class":5391},"\u002F\u002F config\u002Fanalytics.config.ts\n",[5208,10800,10801,10803,10806,10809],{"class":5210,"line":5346},[5208,10802,5279],{"class":5214},[5208,10804,10805],{"class":5282}," interface",[5208,10807,10808],{"class":5286}," AnalyticsConfig",[5208,10810,5290],{"class":5218},[5208,10812,10813,10816,10818,10821],{"class":5210,"line":5388},[5208,10814,10815],{"class":5222},"  enabled",[5208,10817,5311],{"class":5218},[5208,10819,10820],{"class":5286},"boolean",[5208,10822,5236],{"class":5218},[5208,10824,10825,10828,10830,10832],{"class":5210,"line":5395},[5208,10826,10827],{"class":5222},"  trackingId",[5208,10829,5311],{"class":5218},[5208,10831,7177],{"class":5286},[5208,10833,5236],{"class":5218},[5208,10835,10836,10839,10841,10843],{"class":5210,"line":5418},[5208,10837,10838],{"class":5222},"  sampleRate",[5208,10840,5311],{"class":5218},[5208,10842,5990],{"class":5286},[5208,10844,5236],{"class":5218},[5208,10846,10847],{"class":5210,"line":5424},[5208,10848,5427],{"class":5218},[5208,10850,10851],{"class":5210,"line":5872},[5208,10852,5261],{"emptyLinePlaceholder":5260},[5208,10854,10855],{"class":5210,"line":5877},[5208,10856,10857],{"class":5391},"\u002F\u002F services\u002Fanalytics-tracker.service.ts\n",[5208,10859,10860,10862,10864,10866,10868,10870,10872,10874,10876,10878,10880],{"class":5210,"line":5882},[5208,10861,5215],{"class":5214},[5208,10863,5219],{"class":5218},[5208,10865,5223],{"class":5222},[5208,10867,5141],{"class":5218},[5208,10869,5722],{"class":5222},[5208,10871,5141],{"class":5218},[5208,10873,7850],{"class":5222},[5208,10875,5226],{"class":5218},[5208,10877,5229],{"class":5214},[5208,10879,5233],{"class":5232},[5208,10881,5236],{"class":5218},[5208,10883,10884,10886,10888,10891,10893,10895,10898],{"class":5210,"line":5899},[5208,10885,5215],{"class":5214},[5208,10887,5219],{"class":5218},[5208,10889,10890],{"class":5222},"CONFIG_TOKENS",[5208,10892,5226],{"class":5218},[5208,10894,5229],{"class":5214},[5208,10896,10897],{"class":5232}," '..\u002Fconfig\u002Fconfig.tokens'",[5208,10899,5236],{"class":5218},[5208,10901,10902,10904,10906,10909,10911,10913,10916],{"class":5210,"line":5905},[5208,10903,5215],{"class":5214},[5208,10905,5219],{"class":5218},[5208,10907,10908],{"class":5222},"AnalyticsConfig",[5208,10910,5226],{"class":5218},[5208,10912,5229],{"class":5214},[5208,10914,10915],{"class":5232}," '..\u002Fconfig\u002Fanalytics.config'",[5208,10917,5236],{"class":5218},[5208,10919,10920],{"class":5210,"line":5937},[5208,10921,5261],{"emptyLinePlaceholder":5260},[5208,10923,10924,10926,10928],{"class":5210,"line":5942},[5208,10925,5267],{"class":5218},[5208,10927,5223],{"class":5270},[5208,10929,5273],{"class":5218},[5208,10931,10932,10934,10936,10939],{"class":5210,"line":5948},[5208,10933,5279],{"class":5214},[5208,10935,5283],{"class":5282},[5208,10937,10938],{"class":5286}," AnalyticsTracker",[5208,10940,5290],{"class":5218},[5208,10942,10943,10945,10947,10949,10951,10953,10955,10957],{"class":5210,"line":5965},[5208,10944,6914],{"class":5282},[5208,10946,5305],{"class":5282},[5208,10948,7995],{"class":5222},[5208,10950,5311],{"class":5218},[5208,10952,10908],{"class":5286},[5208,10954,7091],{"class":5218},[5208,10956,5665],{"class":5286},[5208,10958,5236],{"class":5218},[5208,10960,10961],{"class":5210,"line":5970},[5208,10962,5261],{"emptyLinePlaceholder":5260},[5208,10964,10965,10967],{"class":5210,"line":5975},[5208,10966,5296],{"class":5282},[5208,10968,5775],{"class":5218},[5208,10970,10971,10973,10975],{"class":5210,"line":5995},[5208,10972,5780],{"class":5218},[5208,10974,5722],{"class":5270},[5208,10976,5273],{"class":5218},[5208,10978,10979,10981,10983,10985,10987,10989,10992],{"class":5210,"line":6023},[5208,10980,5780],{"class":5218},[5208,10982,7850],{"class":5270},[5208,10984,5299],{"class":5218},[5208,10986,10890],{"class":6357},[5208,10988,5352],{"class":5218},[5208,10990,10991],{"class":6357},"ANALYTICS",[5208,10993,8033],{"class":5218},[5208,10995,10996,10999,11001],{"class":5210,"line":6029},[5208,10997,10998],{"class":5222},"    analyticsConfig",[5208,11000,5794],{"class":5218},[5208,11002,11003],{"class":5286},"AnalyticsConfig\n",[5208,11005,11006],{"class":5210,"line":6035},[5208,11007,5802],{"class":5218},[5208,11009,11010,11012,11014,11016,11018,11021,11023,11025],{"class":5210,"line":6040},[5208,11011,5349],{"class":5282},[5208,11013,5352],{"class":5218},[5208,11015,8061],{"class":5222},[5208,11017,6683],{"class":5218},[5208,11019,11020],{"class":5222},"analyticsConfig",[5208,11022,7134],{"class":5218},[5208,11024,5665],{"class":5282},[5208,11026,5236],{"class":5218},[5208,11028,11029],{"class":5210,"line":6911},[5208,11030,5261],{"emptyLinePlaceholder":5260},[5208,11032,11033,11035,11037,11039,11041,11043,11045,11048],{"class":5210,"line":6933},[5208,11034,5807],{"class":5214},[5208,11036,5160],{"class":5218},[5208,11038,5812],{"class":5282},[5208,11040,5352],{"class":5218},[5208,11042,8061],{"class":5222},[5208,11044,5914],{"class":5218},[5208,11046,11047],{"class":5222},"enabled",[5208,11049,5343],{"class":5218},[5208,11051,11052,11054,11056,11058,11060,11063,11065,11067,11069,11071,11073,11076,11078,11080],{"class":5210,"line":6939},[5208,11053,5853],{"class":5222},[5208,11055,5352],{"class":5218},[5208,11057,5360],{"class":5270},[5208,11059,5299],{"class":5218},[5208,11061,11062],{"class":5232},"`Analytics enabled with tracking ID: ",[5208,11064,5368],{"class":5282},[5208,11066,5812],{"class":5282},[5208,11068,5352],{"class":5373},[5208,11070,8061],{"class":5222},[5208,11072,5352],{"class":5373},[5208,11074,11075],{"class":5222},"trackingId",[5208,11077,5379],{"class":5282},[5208,11079,5382],{"class":5232},[5208,11081,5385],{"class":5218},[5208,11083,11084,11086,11088],{"class":5210,"line":6974},[5208,11085,5843],{"class":5218},[5208,11087,5846],{"class":5214},[5208,11089,5290],{"class":5218},[5208,11091,11092,11094,11096,11098,11100,11103],{"class":5210,"line":6979},[5208,11093,5853],{"class":5222},[5208,11095,5352],{"class":5218},[5208,11097,5360],{"class":5270},[5208,11099,5299],{"class":5218},[5208,11101,11102],{"class":5232},"'Analytics disabled or not configured'",[5208,11104,5385],{"class":5218},[5208,11106,11107],{"class":5210,"line":7407},[5208,11108,5869],{"class":5218},[5208,11110,11111],{"class":5210,"line":7412},[5208,11112,5421],{"class":5218},[5208,11114,11115],{"class":5210,"line":8207},[5208,11116,5261],{"emptyLinePlaceholder":5260},[5208,11118,11119,11122,11124,11127,11129,11131,11133,11136,11138,11141,11143,11145,11147,11149,11152,11154],{"class":5210,"line":8214},[5208,11120,11121],{"class":5270},"  trackEvent",[5208,11123,5299],{"class":5218},[5208,11125,11126],{"class":5222},"eventName",[5208,11128,5311],{"class":5218},[5208,11130,7177],{"class":5286},[5208,11132,5141],{"class":5218},[5208,11134,11135],{"class":5222},"properties",[5208,11137,5794],{"class":5218},[5208,11139,11140],{"class":5286},"Record",[5208,11142,8527],{"class":5218},[5208,11144,7177],{"class":5286},[5208,11146,5141],{"class":5218},[5208,11148,5340],{"class":5286},[5208,11150,11151],{"class":5218},">): ",[5208,11153,7465],{"class":5286},[5208,11155,5290],{"class":5218},[5208,11157,11158,11160,11163,11165,11167,11169,11171,11173],{"class":5210,"line":8257},[5208,11159,5807],{"class":5214},[5208,11161,11162],{"class":5218}," (!",[5208,11164,5812],{"class":5282},[5208,11166,5352],{"class":5218},[5208,11168,8061],{"class":5222},[5208,11170,5914],{"class":5218},[5208,11172,11047],{"class":5222},[5208,11174,5343],{"class":5218},[5208,11176,11177],{"class":5210,"line":8270},[5208,11178,11179],{"class":5391},"      \u002F\u002F Аналітика вимкнена — нічого не робимо\n",[5208,11181,11182,11184],{"class":5210,"line":8276},[5208,11183,7290],{"class":5214},[5208,11185,5236],{"class":5218},[5208,11187,11188],{"class":5210,"line":8289},[5208,11189,5869],{"class":5218},[5208,11191,11192],{"class":5210,"line":8303},[5208,11193,5261],{"emptyLinePlaceholder":5260},[5208,11195,11196],{"class":5210,"line":8316},[5208,11197,11198],{"class":5391},"    \u002F\u002F Перевірка sample rate (відправляємо не всі події)\n",[5208,11200,11201,11203,11205,11208,11210,11213,11216,11218,11220,11222,11224,11227],{"class":5210,"line":8344},[5208,11202,5807],{"class":5214},[5208,11204,5160],{"class":5218},[5208,11206,11207],{"class":5222},"Math",[5208,11209,5352],{"class":5218},[5208,11211,11212],{"class":5270},"random",[5208,11214,11215],{"class":5218},"() > ",[5208,11217,5812],{"class":5282},[5208,11219,5352],{"class":5218},[5208,11221,8061],{"class":5222},[5208,11223,5352],{"class":5218},[5208,11225,11226],{"class":5222},"sampleRate",[5208,11228,5343],{"class":5218},[5208,11230,11231,11233],{"class":5210,"line":8353},[5208,11232,7290],{"class":5214},[5208,11234,5236],{"class":5218},[5208,11236,11237],{"class":5210,"line":8358},[5208,11238,5869],{"class":5218},[5208,11240,11241],{"class":5210,"line":8363},[5208,11242,5261],{"emptyLinePlaceholder":5260},[5208,11244,11246,11248,11250,11252,11254,11257,11259,11261,11263,11265,11267,11269],{"class":5210,"line":11245},49,[5208,11247,6781],{"class":5222},[5208,11249,5352],{"class":5218},[5208,11251,5360],{"class":5270},[5208,11253,5299],{"class":5218},[5208,11255,11256],{"class":5232},"`[Analytics] Event: ",[5208,11258,5368],{"class":5282},[5208,11260,11126],{"class":5222},[5208,11262,5379],{"class":5282},[5208,11264,5382],{"class":5232},[5208,11266,5141],{"class":5218},[5208,11268,11135],{"class":5222},[5208,11270,5385],{"class":5218},[5208,11272,11274],{"class":5210,"line":11273},50,[5208,11275,11276],{"class":5391},"    \u002F\u002F Реальна відправка даних у аналітичну систему\n",[5208,11278,11280],{"class":5210,"line":11279},51,[5208,11281,5421],{"class":5218},[5208,11283,11285],{"class":5210,"line":11284},52,[5208,11286,5261],{"emptyLinePlaceholder":5260},[5208,11288,11290,11293,11295,11298,11300,11302,11304,11306],{"class":5210,"line":11289},53,[5208,11291,11292],{"class":5270},"  trackPageView",[5208,11294,5299],{"class":5218},[5208,11296,11297],{"class":5222},"url",[5208,11299,5311],{"class":5218},[5208,11301,7177],{"class":5286},[5208,11303,7462],{"class":5218},[5208,11305,7465],{"class":5286},[5208,11307,5290],{"class":5218},[5208,11309,11311,11313,11315,11317,11319,11321,11323,11325,11328,11331],{"class":5210,"line":11310},54,[5208,11312,5807],{"class":5214},[5208,11314,11162],{"class":5218},[5208,11316,5812],{"class":5282},[5208,11318,5352],{"class":5218},[5208,11320,8061],{"class":5222},[5208,11322,5914],{"class":5218},[5208,11324,11047],{"class":5222},[5208,11326,11327],{"class":5218},") ",[5208,11329,11330],{"class":5214},"return",[5208,11332,5236],{"class":5218},[5208,11334,11336],{"class":5210,"line":11335},55,[5208,11337,5261],{"emptyLinePlaceholder":5260},[5208,11339,11341,11343,11345,11347,11349,11352,11354,11356,11358,11360],{"class":5210,"line":11340},56,[5208,11342,6781],{"class":5222},[5208,11344,5352],{"class":5218},[5208,11346,5360],{"class":5270},[5208,11348,5299],{"class":5218},[5208,11350,11351],{"class":5232},"`[Analytics] Page view: ",[5208,11353,5368],{"class":5282},[5208,11355,11297],{"class":5222},[5208,11357,5379],{"class":5282},[5208,11359,5382],{"class":5232},[5208,11361,5385],{"class":5218},[5208,11363,11365],{"class":5210,"line":11364},57,[5208,11366,5421],{"class":5218},[5208,11368,11370],{"class":5210,"line":11369},58,[5208,11371,5427],{"class":5218},[5135,11373,11374],{},"Тепер модуль може надати конфігурацію аналітики або не надавати — сервіс працюватиме в обох випадках:",[5199,11376,11378],{"className":5201,"code":11377,"language":5203,"meta":5204,"style":5204},"\u002F\u002F app.module.ts (з аналітикою)\nimport { Module } from '@nestjs\u002Fcommon';\nimport { CONFIG_TOKENS } from '.\u002Fconfig\u002Fconfig.tokens';\nimport { AnalyticsTracker } from '.\u002Fservices\u002Fanalytics-tracker.service';\n\n@Module({\n  providers: [\n    AnalyticsTracker,\n    {\n      provide: CONFIG_TOKENS.ANALYTICS,\n      useValue: {\n        enabled: true,\n        trackingId: 'UA-123456789-1',\n        sampleRate: 0.1  \u002F\u002F Відправляємо 10% подій\n      }\n    }\n  ]\n})\nexport class AppModule {}\n",[5099,11379,11380,11385,11401,11418,11436,11440,11448,11454,11461,11465,11477,11483,11492,11502,11513,11517,11521,11525,11529],{"__ignoreMap":5204},[5208,11381,11382],{"class":5210,"line":5211},[5208,11383,11384],{"class":5391},"\u002F\u002F app.module.ts (з аналітикою)\n",[5208,11386,11387,11389,11391,11393,11395,11397,11399],{"class":5210,"line":5239},[5208,11388,5215],{"class":5214},[5208,11390,5219],{"class":5218},[5208,11392,5449],{"class":5222},[5208,11394,5226],{"class":5218},[5208,11396,5229],{"class":5214},[5208,11398,5233],{"class":5232},[5208,11400,5236],{"class":5218},[5208,11402,11403,11405,11407,11409,11411,11413,11416],{"class":5210,"line":5257},[5208,11404,5215],{"class":5214},[5208,11406,5219],{"class":5218},[5208,11408,10890],{"class":5222},[5208,11410,5226],{"class":5218},[5208,11412,5229],{"class":5214},[5208,11414,11415],{"class":5232}," '.\u002Fconfig\u002Fconfig.tokens'",[5208,11417,5236],{"class":5218},[5208,11419,11420,11422,11424,11427,11429,11431,11434],{"class":5210,"line":5264},[5208,11421,5215],{"class":5214},[5208,11423,5219],{"class":5218},[5208,11425,11426],{"class":5222},"AnalyticsTracker",[5208,11428,5226],{"class":5218},[5208,11430,5229],{"class":5214},[5208,11432,11433],{"class":5232}," '.\u002Fservices\u002Fanalytics-tracker.service'",[5208,11435,5236],{"class":5218},[5208,11437,11438],{"class":5210,"line":5276},[5208,11439,5261],{"emptyLinePlaceholder":5260},[5208,11441,11442,11444,11446],{"class":5210,"line":5293},[5208,11443,5267],{"class":5218},[5208,11445,5449],{"class":5270},[5208,11447,5452],{"class":5218},[5208,11449,11450,11452],{"class":5210,"line":5319},[5208,11451,5457],{"class":5222},[5208,11453,5460],{"class":5218},[5208,11455,11456,11459],{"class":5210,"line":5324},[5208,11457,11458],{"class":5222},"    AnalyticsTracker",[5208,11460,7940],{"class":5218},[5208,11462,11463],{"class":5210,"line":5346},[5208,11464,8905],{"class":5218},[5208,11466,11467,11469,11471,11473,11475],{"class":5210,"line":5388},[5208,11468,8910],{"class":5222},[5208,11470,10732],{"class":6357},[5208,11472,5352],{"class":5218},[5208,11474,10991],{"class":6357},[5208,11476,7940],{"class":5218},[5208,11478,11479,11481],{"class":5210,"line":5395},[5208,11480,8920],{"class":5222},[5208,11482,5290],{"class":5218},[5208,11484,11485,11488,11490],{"class":5210,"line":5418},[5208,11486,11487],{"class":5222},"        enabled:",[5208,11489,9247],{"class":5282},[5208,11491,7940],{"class":5218},[5208,11493,11494,11497,11500],{"class":5210,"line":5424},[5208,11495,11496],{"class":5222},"        trackingId:",[5208,11498,11499],{"class":5232}," 'UA-123456789-1'",[5208,11501,7940],{"class":5218},[5208,11503,11504,11507,11510],{"class":5210,"line":5872},[5208,11505,11506],{"class":5222},"        sampleRate:",[5208,11508,11509],{"class":5406}," 0.1",[5208,11511,11512],{"class":5391},"  \u002F\u002F Відправляємо 10% подій\n",[5208,11514,11515],{"class":5210,"line":5877},[5208,11516,6763],{"class":5218},[5208,11518,11519],{"class":5210,"line":5882},[5208,11520,5869],{"class":5218},[5208,11522,11523],{"class":5210,"line":5899},[5208,11524,5475],{"class":5218},[5208,11526,11527],{"class":5210,"line":5905},[5208,11528,5480],{"class":5218},[5208,11530,11531,11533,11535,11537],{"class":5210,"line":5937},[5208,11532,5279],{"class":5214},[5208,11534,5283],{"class":5282},[5208,11536,8980],{"class":5286},[5208,11538,5492],{"class":5218},[5199,11540,11542],{"className":5201,"code":11541,"language":5203,"meta":5204,"style":5204},"\u002F\u002F test.module.ts (без аналітики)\nimport { Module } from '@nestjs\u002Fcommon';\nimport { AnalyticsTracker } from '.\u002Fservices\u002Fanalytics-tracker.service';\n\n@Module({\n  providers: [\n    AnalyticsTracker\n    \u002F\u002F Провайдер CONFIG_TOKENS.ANALYTICS відсутній\n  ]\n})\nexport class TestModule {}\n",[5099,11543,11544,11549,11565,11581,11585,11593,11599,11604,11609,11613,11617],{"__ignoreMap":5204},[5208,11545,11546],{"class":5210,"line":5211},[5208,11547,11548],{"class":5391},"\u002F\u002F test.module.ts (без аналітики)\n",[5208,11550,11551,11553,11555,11557,11559,11561,11563],{"class":5210,"line":5239},[5208,11552,5215],{"class":5214},[5208,11554,5219],{"class":5218},[5208,11556,5449],{"class":5222},[5208,11558,5226],{"class":5218},[5208,11560,5229],{"class":5214},[5208,11562,5233],{"class":5232},[5208,11564,5236],{"class":5218},[5208,11566,11567,11569,11571,11573,11575,11577,11579],{"class":5210,"line":5257},[5208,11568,5215],{"class":5214},[5208,11570,5219],{"class":5218},[5208,11572,11426],{"class":5222},[5208,11574,5226],{"class":5218},[5208,11576,5229],{"class":5214},[5208,11578,11433],{"class":5232},[5208,11580,5236],{"class":5218},[5208,11582,11583],{"class":5210,"line":5264},[5208,11584,5261],{"emptyLinePlaceholder":5260},[5208,11586,11587,11589,11591],{"class":5210,"line":5276},[5208,11588,5267],{"class":5218},[5208,11590,5449],{"class":5270},[5208,11592,5452],{"class":5218},[5208,11594,11595,11597],{"class":5210,"line":5293},[5208,11596,5457],{"class":5222},[5208,11598,5460],{"class":5218},[5208,11600,11601],{"class":5210,"line":5319},[5208,11602,11603],{"class":5222},"    AnalyticsTracker\n",[5208,11605,11606],{"class":5210,"line":5324},[5208,11607,11608],{"class":5391},"    \u002F\u002F Провайдер CONFIG_TOKENS.ANALYTICS відсутній\n",[5208,11610,11611],{"class":5210,"line":5346},[5208,11612,5475],{"class":5218},[5208,11614,11615],{"class":5210,"line":5388},[5208,11616,5480],{"class":5218},[5208,11618,11619,11621,11623,11626],{"class":5210,"line":5395},[5208,11620,5279],{"class":5214},[5208,11622,5283],{"class":5282},[5208,11624,11625],{"class":5286}," TestModule",[5208,11627,5492],{"class":5218},[6178,11629,11631],{"id":11630},"приклад-опціональне-підключення-до-redis","Приклад: опціональне підключення до Redis",[5199,11633,11635],{"className":5201,"code":11634,"language":5203,"meta":5204,"style":5204},"\u002F\u002F constants\u002Finjection-tokens.ts\nexport const REDIS_CLIENT_TOKEN = Symbol('RedisClient');\n\n\u002F\u002F cache\u002Fredis-cache.service.ts\nimport { Injectable, Optional, Inject } from '@nestjs\u002Fcommon';\nimport { RedisClientType } from 'redis';\nimport { REDIS_CLIENT_TOKEN } from '..\u002Fconstants\u002Finjection-tokens';\n\n@Injectable()\nexport class RedisCacheService {\n  constructor(\n    @Optional()\n    @Inject(REDIS_CLIENT_TOKEN)\n    private readonly redis?: RedisClientType\n  ) {\n    if (this.redis) {\n      console.log('✓ Redis cache service initialized with connection');\n    } else {\n      console.log('⚠ Redis cache service running in no-op mode (no connection)');\n    }\n  }\n\n  async get(key: string): Promise\u003Cstring | null> {\n    if (!this.redis) {\n      console.log('Cache disabled: returning null');\n      return null;\n    }\n\n    try {\n      return await this.redis.get(key);\n    } catch (error) {\n      console.error(`Redis GET error:`, error);\n      return null;\n    }\n  }\n\n  async set(key: string, value: string, ttlSeconds?: number): Promise\u003Cvoid> {\n    if (!this.redis) {\n      console.log('Cache disabled: skipping SET');\n      return;\n    }\n\n    try {\n      if (ttlSeconds) {\n        await this.redis.setEx(key, ttlSeconds, value);\n      } else {\n        await this.redis.set(key, value);\n      }\n    } catch (error) {\n      console.error(`Redis SET error:`, error);\n    }\n  }\n\n  async delete(key: string): Promise\u003Cvoid> {\n    if (!this.redis) return;\n\n    try {\n      await this.redis.del(key);\n    } catch (error) {\n      console.error(`Redis DELETE error:`, error);\n    }\n  }\n}\n",[5099,11636,11637,11642,11663,11667,11672,11696,11714,11732,11736,11744,11755,11761,11769,11781,11795,11799,11814,11829,11837,11852,11856,11860,11864,11894,11908,11923,11932,11936,11940,11946,11969,11981,12000,12008,12012,12016,12020,12063,12077,12092,12098,12102,12106,12112,12122,12152,12161,12185,12189,12201,12220,12224,12228,12232,12257,12275,12279,12285,12306,12319,12339,12344,12349],{"__ignoreMap":5204},[5208,11638,11639],{"class":5210,"line":5211},[5208,11640,11641],{"class":5391},"\u002F\u002F constants\u002Finjection-tokens.ts\n",[5208,11643,11644,11646,11648,11651,11653,11656,11658,11661],{"class":5210,"line":5239},[5208,11645,5279],{"class":5214},[5208,11647,10729],{"class":5282},[5208,11649,11650],{"class":6357}," REDIS_CLIENT_TOKEN",[5208,11652,6683],{"class":5218},[5208,11654,11655],{"class":5270},"Symbol",[5208,11657,5299],{"class":5218},[5208,11659,11660],{"class":5232},"'RedisClient'",[5208,11662,5385],{"class":5218},[5208,11664,11665],{"class":5210,"line":5257},[5208,11666,5261],{"emptyLinePlaceholder":5260},[5208,11668,11669],{"class":5210,"line":5264},[5208,11670,11671],{"class":5391},"\u002F\u002F cache\u002Fredis-cache.service.ts\n",[5208,11673,11674,11676,11678,11680,11682,11684,11686,11688,11690,11692,11694],{"class":5210,"line":5276},[5208,11675,5215],{"class":5214},[5208,11677,5219],{"class":5218},[5208,11679,5223],{"class":5222},[5208,11681,5141],{"class":5218},[5208,11683,5722],{"class":5222},[5208,11685,5141],{"class":5218},[5208,11687,7850],{"class":5222},[5208,11689,5226],{"class":5218},[5208,11691,5229],{"class":5214},[5208,11693,5233],{"class":5232},[5208,11695,5236],{"class":5218},[5208,11697,11698,11700,11702,11705,11707,11709,11712],{"class":5210,"line":5293},[5208,11699,5215],{"class":5214},[5208,11701,5219],{"class":5218},[5208,11703,11704],{"class":5222},"RedisClientType",[5208,11706,5226],{"class":5218},[5208,11708,5229],{"class":5214},[5208,11710,11711],{"class":5232}," 'redis'",[5208,11713,5236],{"class":5218},[5208,11715,11716,11718,11720,11723,11725,11727,11730],{"class":5210,"line":5319},[5208,11717,5215],{"class":5214},[5208,11719,5219],{"class":5218},[5208,11721,11722],{"class":5222},"REDIS_CLIENT_TOKEN",[5208,11724,5226],{"class":5218},[5208,11726,5229],{"class":5214},[5208,11728,11729],{"class":5232}," '..\u002Fconstants\u002Finjection-tokens'",[5208,11731,5236],{"class":5218},[5208,11733,11734],{"class":5210,"line":5324},[5208,11735,5261],{"emptyLinePlaceholder":5260},[5208,11737,11738,11740,11742],{"class":5210,"line":5346},[5208,11739,5267],{"class":5218},[5208,11741,5223],{"class":5270},[5208,11743,5273],{"class":5218},[5208,11745,11746,11748,11750,11753],{"class":5210,"line":5388},[5208,11747,5279],{"class":5214},[5208,11749,5283],{"class":5282},[5208,11751,11752],{"class":5286}," RedisCacheService",[5208,11754,5290],{"class":5218},[5208,11756,11757,11759],{"class":5210,"line":5395},[5208,11758,5296],{"class":5282},[5208,11760,5775],{"class":5218},[5208,11762,11763,11765,11767],{"class":5210,"line":5418},[5208,11764,5780],{"class":5218},[5208,11766,5722],{"class":5270},[5208,11768,5273],{"class":5218},[5208,11770,11771,11773,11775,11777,11779],{"class":5210,"line":5424},[5208,11772,5780],{"class":5218},[5208,11774,7850],{"class":5270},[5208,11776,5299],{"class":5218},[5208,11778,11722],{"class":6357},[5208,11780,8033],{"class":5218},[5208,11782,11783,11785,11787,11790,11792],{"class":5210,"line":5872},[5208,11784,10672],{"class":5282},[5208,11786,5305],{"class":5282},[5208,11788,11789],{"class":5222}," redis",[5208,11791,5794],{"class":5218},[5208,11793,11794],{"class":5286},"RedisClientType\n",[5208,11796,11797],{"class":5210,"line":5877},[5208,11798,5802],{"class":5218},[5208,11800,11801,11803,11805,11807,11809,11812],{"class":5210,"line":5882},[5208,11802,5807],{"class":5214},[5208,11804,5160],{"class":5218},[5208,11806,5812],{"class":5282},[5208,11808,5352],{"class":5218},[5208,11810,11811],{"class":5222},"redis",[5208,11813,5343],{"class":5218},[5208,11815,11816,11818,11820,11822,11824,11827],{"class":5210,"line":5899},[5208,11817,5853],{"class":5222},[5208,11819,5352],{"class":5218},[5208,11821,5360],{"class":5270},[5208,11823,5299],{"class":5218},[5208,11825,11826],{"class":5232},"'✓ Redis cache service initialized with connection'",[5208,11828,5385],{"class":5218},[5208,11830,11831,11833,11835],{"class":5210,"line":5905},[5208,11832,5843],{"class":5218},[5208,11834,5846],{"class":5214},[5208,11836,5290],{"class":5218},[5208,11838,11839,11841,11843,11845,11847,11850],{"class":5210,"line":5937},[5208,11840,5853],{"class":5222},[5208,11842,5352],{"class":5218},[5208,11844,5360],{"class":5270},[5208,11846,5299],{"class":5218},[5208,11848,11849],{"class":5232},"'⚠ Redis cache service running in no-op mode (no connection)'",[5208,11851,5385],{"class":5218},[5208,11853,11854],{"class":5210,"line":5942},[5208,11855,5869],{"class":5218},[5208,11857,11858],{"class":5210,"line":5948},[5208,11859,5421],{"class":5218},[5208,11861,11862],{"class":5210,"line":5965},[5208,11863,5261],{"emptyLinePlaceholder":5260},[5208,11865,11866,11868,11871,11873,11876,11878,11880,11882,11884,11886,11888,11890,11892],{"class":5210,"line":5970},[5208,11867,5327],{"class":5282},[5208,11869,11870],{"class":5270}," get",[5208,11872,5299],{"class":5218},[5208,11874,11875],{"class":5222},"key",[5208,11877,5311],{"class":5218},[5208,11879,7177],{"class":5286},[5208,11881,7462],{"class":5218},[5208,11883,9347],{"class":5286},[5208,11885,8527],{"class":5218},[5208,11887,7177],{"class":5286},[5208,11889,7091],{"class":5218},[5208,11891,5665],{"class":5286},[5208,11893,9354],{"class":5218},[5208,11895,11896,11898,11900,11902,11904,11906],{"class":5210,"line":5975},[5208,11897,5807],{"class":5214},[5208,11899,11162],{"class":5218},[5208,11901,5812],{"class":5282},[5208,11903,5352],{"class":5218},[5208,11905,11811],{"class":5222},[5208,11907,5343],{"class":5218},[5208,11909,11910,11912,11914,11916,11918,11921],{"class":5210,"line":5995},[5208,11911,5853],{"class":5222},[5208,11913,5352],{"class":5218},[5208,11915,5360],{"class":5270},[5208,11917,5299],{"class":5218},[5208,11919,11920],{"class":5232},"'Cache disabled: returning 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await",[5208,12128,6689],{"class":5282},[5208,12130,5352],{"class":5218},[5208,12132,11811],{"class":5222},[5208,12134,5352],{"class":5218},[5208,12136,12137],{"class":5270},"setEx",[5208,12139,5299],{"class":5218},[5208,12141,11875],{"class":5222},[5208,12143,5141],{"class":5218},[5208,12145,12048],{"class":5222},[5208,12147,5141],{"class":5218},[5208,12149,12039],{"class":5222},[5208,12151,5385],{"class":5218},[5208,12153,12154,12157,12159],{"class":5210,"line":8353},[5208,12155,12156],{"class":5218},"      } ",[5208,12158,5846],{"class":5214},[5208,12160,5290],{"class":5218},[5208,12162,12163,12165,12167,12169,12171,12173,12175,12177,12179,12181,12183],{"class":5210,"line":8358},[5208,12164,12126],{"class":5214},[5208,12166,6689],{"class":5282},[5208,12168,5352],{"class":5218},[5208,12170,11811],{"class":5222},[5208,12172,5352],{"class":5218},[5208,12174,6855],{"class":5270},[5208,12176,5299],{"class":5218},[5208,12178,11875],{"class":5222},[5208,12180,5141],{"class":5218},[5208,12182,12039],{"class":5222},[5208,12184,5385],{"class":5218},[5208,12186,12187],{"class":5210,"line":8363},[5208,12188,6763],{"class":5218},[5208,12190,12191,12193,12195,12197,12199],{"class":5210,"line":11245},[5208,12192,5843],{"class":5218},[5208,12194,7301],{"class":5214},[5208,12196,5160],{"class":5218},[5208,12198,7306],{"class":5222},[5208,12200,5343],{"class":5218},[5208,12202,12203,12205,12207,12209,12211,12214,12216,12218],{"class":5210,"line":11273},[5208,12204,5853],{"class":5222},[5208,12206,5352],{"class":5218},[5208,12208,7306],{"class":5270},[5208,12210,5299],{"class":5218},[5208,12212,12213],{"class":5232},"`Redis SET error:`",[5208,12215,5141],{"class":5218},[5208,12217,7306],{"class":5222},[5208,12219,5385],{"class":5218},[5208,12221,12222],{"class":5210,"line":11279},[5208,12223,5869],{"class":5218},[5208,12225,12226],{"class":5210,"line":11284},[5208,12227,5421],{"class":5218},[5208,12229,12230],{"class":5210,"line":11289},[5208,12231,5261],{"emptyLinePlaceholder":5260},[5208,12233,12234,12236,12239,12241,12243,12245,12247,12249,12251,12253,12255],{"class":5210,"line":11310},[5208,12235,5327],{"class":5282},[5208,12237,12238],{"class":5270}," delete",[5208,12240,5299],{"class":5218},[5208,12242,11875],{"class":5222},[5208,12244,5311],{"class":5218},[5208,12246,7177],{"class":5286},[5208,12248,7462],{"class":5218},[5208,12250,9347],{"class":5286},[5208,12252,8527],{"class":5218},[5208,12254,7465],{"class":5286},[5208,12256,9354],{"class":5218},[5208,12258,12259,12261,12263,12265,12267,12269,12271,12273],{"class":5210,"line":11335},[5208,12260,5807],{"class":5214},[5208,12262,11162],{"class":5218},[5208,12264,5812],{"class":5282},[5208,12266,5352],{"class":5218},[5208,12268,11811],{"class":5222},[5208,12270,11327],{"class":5218},[5208,12272,11330],{"class":5214},[5208,12274,5236],{"class":5218},[5208,12276,12277],{"class":5210,"line":11340},[5208,12278,5261],{"emptyLinePlaceholder":5260},[5208,12280,12281,12283],{"class":5210,"line":11364},[5208,12282,7207],{"class":5214},[5208,12284,5290],{"class":5218},[5208,12286,12287,12289,12291,12293,12295,12297,12300,12302,12304],{"class":5210,"line":11369},[5208,12288,6844],{"class":5214},[5208,12290,6689],{"class":5282},[5208,12292,5352],{"class":5218},[5208,12294,11811],{"class":5222},[5208,12296,5352],{"class":5218},[5208,12298,12299],{"class":5270},"del",[5208,12301,5299],{"class":5218},[5208,12303,11875],{"class":5222},[5208,12305,5385],{"class":5218},[5208,12307,12309,12311,12313,12315,12317],{"class":5210,"line":12308},59,[5208,12310,5843],{"class":5218},[5208,12312,7301],{"class":5214},[5208,12314,5160],{"class":5218},[5208,12316,7306],{"class":5222},[5208,12318,5343],{"class":5218},[5208,12320,12322,12324,12326,12328,12330,12333,12335,12337],{"class":5210,"line":12321},60,[5208,12323,5853],{"class":5222},[5208,12325,5352],{"class":5218},[5208,12327,7306],{"class":5270},[5208,12329,5299],{"class":5218},[5208,12331,12332],{"class":5232},"`Redis DELETE error:`",[5208,12334,5141],{"class":5218},[5208,12336,7306],{"class":5222},[5208,12338,5385],{"class":5218},[5208,12340,12342],{"class":5210,"line":12341},61,[5208,12343,5869],{"class":5218},[5208,12345,12347],{"class":5210,"line":12346},62,[5208,12348,5421],{"class":5218},[5208,12350,12352],{"class":5210,"line":12351},63,[5208,12353,5427],{"class":5218},[5135,12355,12356],{},"Модуль може надати підключення до Redis або залишити його опціональним:",[5199,12358,12360],{"className":5201,"code":12359,"language":5203,"meta":5204,"style":5204},"\u002F\u002F redis.module.ts\nimport { Module } from '@nestjs\u002Fcommon';\nimport { createClient } from 'redis';\nimport { REDIS_CLIENT_TOKEN } from '..\u002Fconstants\u002Finjection-tokens';\nimport { RedisCacheService } from '.\u002Fredis-cache.service';\n\n@Module({\n  providers: [\n    {\n      provide: REDIS_CLIENT_TOKEN,\n      useFactory: async () => {\n        \u002F\u002F Якщо змінна оточення не встановлена — не створюємо клієнт\n        if (!process.env.REDIS_URL) {\n          console.log('REDIS_URL not set, skipping Redis connection');\n          return undefined;  \u002F\u002F Поверне undefined — спрацює @Optional\n        }\n\n        const client = createClient({ url: process.env.REDIS_URL });\n        await client.connect();\n        console.log('✓ Redis client connected');\n        return client;\n      }\n    },\n    RedisCacheService\n  ],\n  exports: [RedisCacheService]\n})\nexport class RedisModule {}\n",[5099,12361,12362,12367,12383,12400,12416,12434,12438,12446,12452,12456,12464,12480,12485,12506,12522,12536,12541,12545,12575,12588,12603,12611,12615,12620,12625,12630,12643,12647],{"__ignoreMap":5204},[5208,12363,12364],{"class":5210,"line":5211},[5208,12365,12366],{"class":5391},"\u002F\u002F redis.module.ts\n",[5208,12368,12369,12371,12373,12375,12377,12379,12381],{"class":5210,"line":5239},[5208,12370,5215],{"class":5214},[5208,12372,5219],{"class":5218},[5208,12374,5449],{"class":5222},[5208,12376,5226],{"class":5218},[5208,12378,5229],{"class":5214},[5208,12380,5233],{"class":5232},[5208,12382,5236],{"class":5218},[5208,12384,12385,12387,12389,12392,12394,12396,12398],{"class":5210,"line":5257},[5208,12386,5215],{"class":5214},[5208,12388,5219],{"class":5218},[5208,12390,12391],{"class":5222},"createClient",[5208,12393,5226],{"class":5218},[5208,12395,5229],{"class":5214},[5208,12397,11711],{"class":5232},[5208,12399,5236],{"class":5218},[5208,12401,12402,12404,12406,12408,12410,12412,12414],{"class":5210,"line":5264},[5208,12403,5215],{"class":5214},[5208,12405,5219],{"class":5218},[5208,12407,11722],{"class":5222},[5208,12409,5226],{"class":5218},[5208,12411,5229],{"class":5214},[5208,12413,11729],{"class":5232},[5208,12415,5236],{"class":5218},[5208,12417,12418,12420,12422,12425,12427,12429,12432],{"class":5210,"line":5276},[5208,12419,5215],{"class":5214},[5208,12421,5219],{"class":5218},[5208,12423,12424],{"class":5222},"RedisCacheService",[5208,12426,5226],{"class":5218},[5208,12428,5229],{"class":5214},[5208,12430,12431],{"class":5232}," '.\u002Fredis-cache.service'",[5208,12433,5236],{"class":5218},[5208,12435,12436],{"class":5210,"line":5293},[5208,12437,5261],{"emptyLinePlaceholder":5260},[5208,12439,12440,12442,12444],{"class":5210,"line":5319},[5208,12441,5267],{"class":5218},[5208,12443,5449],{"class":5270},[5208,12445,5452],{"class":5218},[5208,12447,12448,12450],{"class":5210,"line":5324},[5208,12449,5457],{"class":5222},[5208,12451,5460],{"class":5218},[5208,12453,12454],{"class":5210,"line":5346},[5208,12455,8905],{"class":5218},[5208,12457,12458,12460,12462],{"class":5210,"line":5388},[5208,12459,8910],{"class":5222},[5208,12461,11650],{"class":6357},[5208,12463,7940],{"class":5218},[5208,12465,12466,12469,12471,12473,12476,12478],{"class":5210,"line":5395},[5208,12467,12468],{"class":5270},"      useFactory",[5208,12470,5197],{"class":5222},[5208,12472,6917],{"class":5282},[5208,12474,12475],{"class":5218}," () ",[5208,12477,8172],{"class":5282},[5208,12479,5290],{"class":5218},[5208,12481,12482],{"class":5210,"line":5418},[5208,12483,12484],{"class":5391},"        \u002F\u002F Якщо змінна оточення не встановлена — не створюємо клієнт\n",[5208,12486,12487,12490,12492,12495,12497,12499,12501,12504],{"class":5210,"line":5424},[5208,12488,12489],{"class":5214},"        if",[5208,12491,11162],{"class":5218},[5208,12493,12494],{"class":5222},"process",[5208,12496,5352],{"class":5218},[5208,12498,8945],{"class":5222},[5208,12500,5352],{"class":5218},[5208,12502,12503],{"class":6357},"REDIS_URL",[5208,12505,5343],{"class":5218},[5208,12507,12508,12511,12513,12515,12517,12520],{"class":5210,"line":5872},[5208,12509,12510],{"class":5222},"          console",[5208,12512,5352],{"class":5218},[5208,12514,5360],{"class":5270},[5208,12516,5299],{"class":5218},[5208,12518,12519],{"class":5232},"'REDIS_URL not set, skipping Redis connection'",[5208,12521,5385],{"class":5218},[5208,12523,12524,12527,12530,12533],{"class":5210,"line":5877},[5208,12525,12526],{"class":5214},"          return",[5208,12528,12529],{"class":5282}," undefined",[5208,12531,12532],{"class":5218},";  ",[5208,12534,12535],{"class":5391},"\u002F\u002F Поверне undefined — спрацює @Optional\n",[5208,12537,12538],{"class":5210,"line":5882},[5208,12539,12540],{"class":5218},"        }\n",[5208,12542,12543],{"class":5210,"line":5899},[5208,12544,5261],{"emptyLinePlaceholder":5260},[5208,12546,12547,12550,12553,12555,12557,12560,12563,12565,12567,12569,12571,12573],{"class":5210,"line":5905},[5208,12548,12549],{"class":5282},"        const",[5208,12551,12552],{"class":6357}," client",[5208,12554,6683],{"class":5218},[5208,12556,12391],{"class":5270},[5208,12558,12559],{"class":5218},"({ ",[5208,12561,12562],{"class":5222},"url:",[5208,12564,8940],{"class":5222},[5208,12566,5352],{"class":5218},[5208,12568,8945],{"class":5222},[5208,12570,5352],{"class":5218},[5208,12572,12503],{"class":6357},[5208,12574,6884],{"class":5218},[5208,12576,12577,12579,12581,12583,12586],{"class":5210,"line":5937},[5208,12578,12126],{"class":5214},[5208,12580,12552],{"class":5222},[5208,12582,5352],{"class":5218},[5208,12584,12585],{"class":5270},"connect",[5208,12587,7198],{"class":5218},[5208,12589,12590,12592,12594,12596,12598,12601],{"class":5210,"line":5942},[5208,12591,6730],{"class":5222},[5208,12593,5352],{"class":5218},[5208,12595,5360],{"class":5270},[5208,12597,5299],{"class":5218},[5208,12599,12600],{"class":5232},"'✓ Redis client connected'",[5208,12602,5385],{"class":5218},[5208,12604,12605,12607,12609],{"class":5210,"line":5948},[5208,12606,6754],{"class":5214},[5208,12608,12552],{"class":5222},[5208,12610,5236],{"class":5218},[5208,12612,12613],{"class":5210,"line":5965},[5208,12614,6763],{"class":5218},[5208,12616,12617],{"class":5210,"line":5970},[5208,12618,12619],{"class":5218},"    },\n",[5208,12621,12622],{"class":5210,"line":5975},[5208,12623,12624],{"class":5222},"    RedisCacheService\n",[5208,12626,12627],{"class":5210,"line":5995},[5208,12628,12629],{"class":5218},"  ],\n",[5208,12631,12632,12635,12638,12640],{"class":5210,"line":6023},[5208,12633,12634],{"class":5222},"  exports:",[5208,12636,12637],{"class":5218}," [",[5208,12639,12424],{"class":5222},[5208,12641,12642],{"class":5218},"]\n",[5208,12644,12645],{"class":5210,"line":6029},[5208,12646,5480],{"class":5218},[5208,12648,12649,12651,12653,12656],{"class":5210,"line":6035},[5208,12650,5279],{"class":5214},[5208,12652,5283],{"class":5282},[5208,12654,12655],{"class":5286}," RedisModule",[5208,12657,5492],{"class":5218},[7802,12659,12660,12661,10561,12663,12665,12666,12669],{},"Комбінація ",[5099,12662,5101],{},[5099,12664,5633],{}," особливо корисна для ",[5150,12667,12668],{},"умовного підключення інфраструктурних сервісів",". Наприклад, Redis може бути недоступний у локальному оточенні розробника, але обов'язковий у продакшні — опціональна залежність дозволяє застосунку запуститися в обох випадках.",[5128,12671],{},[5084,12673,12675],{"id":12674},"діаграма-обовязкові-vs-опціональні-залежності","Діаграма: обов'язкові vs опціональні залежності",[5135,12677,12678],{},"Розглянемо візуальну різницю між обов'язковими та опціональними залежностями у контексті створення екземплярів сервісів:",[12680,12681,12683],"plant-uml",{"alt":12682},"Поведінка DI-контейнера при відсутності залежностей",[5199,12684,12688],{"className":12685,"code":12686,"language":12687,"meta":5204,"style":5204},"language-plantuml shiki shiki-themes light-plus dark-plus dark-plus","@startuml\nskinparam style plain\nskinparam backgroundColor #FFFFFF\n\npackage \"Обов'язкова залежність (Hard Dependency)\" #FEF3C7 {\n  rectangle \"UsersService\" as US1 #FDE68A\n  rectangle \"DatabaseService\" as DB1 #FCA5A5\n  \n  US1 -down-> DB1 : requires\n  \n  note right of DB1 #FECACA\n    ❌ Якщо DatabaseService\n    відсутній у DI-контейнері,\n    застосунок не запуститься.\n    \n    \u003Cb>Error:\u003C\u002Fb> Cannot resolve dependencies\n  end note\n}\n\npackage \"Опціональна залежність (Soft Dependency)\" #DCFCE7 {\n  rectangle \"OrdersService\" as OS #BFDBFE\n  rectangle \"LoggerService\" as LS #BBF7D0\n  \n  OS -down-> LS : @Optional()\n  \n  note right of LS #D1FAE5\n    ✅ Якщо LoggerService відсутній,\n    OrdersService отримає \u003Cb>null\u003C\u002Fb>.\n    Застосунок запуститься нормально.\n    \n    \u003Cb>Injected value:\u003C\u002Fb> null | undefined\n  end note\n}\n\n@enduml\n","plantuml",[5099,12689,12690,12695,12700,12705,12709,12714,12719,12724,12728,12733,12737,12742,12747,12752,12757,12761,12766,12771,12775,12779,12784,12789,12794,12798,12803,12807,12812,12817,12822,12827,12831,12836,12840,12844,12848],{"__ignoreMap":5204},[5208,12691,12692],{"class":5210,"line":5211},[5208,12693,12694],{},"@startuml\n",[5208,12696,12697],{"class":5210,"line":5239},[5208,12698,12699],{},"skinparam style plain\n",[5208,12701,12702],{"class":5210,"line":5257},[5208,12703,12704],{},"skinparam backgroundColor #FFFFFF\n",[5208,12706,12707],{"class":5210,"line":5264},[5208,12708,5261],{"emptyLinePlaceholder":5260},[5208,12710,12711],{"class":5210,"line":5276},[5208,12712,12713],{},"package \"Обов'язкова залежність (Hard Dependency)\" #FEF3C7 {\n",[5208,12715,12716],{"class":5210,"line":5293},[5208,12717,12718],{},"  rectangle \"UsersService\" as US1 #FDE68A\n",[5208,12720,12721],{"class":5210,"line":5319},[5208,12722,12723],{},"  rectangle \"DatabaseService\" as DB1 #FCA5A5\n",[5208,12725,12726],{"class":5210,"line":5324},[5208,12727,10396],{},[5208,12729,12730],{"class":5210,"line":5346},[5208,12731,12732],{},"  US1 -down-> DB1 : requires\n",[5208,12734,12735],{"class":5210,"line":5388},[5208,12736,10396],{},[5208,12738,12739],{"class":5210,"line":5395},[5208,12740,12741],{},"  note right of DB1 #FECACA\n",[5208,12743,12744],{"class":5210,"line":5418},[5208,12745,12746],{},"    ❌ Якщо DatabaseService\n",[5208,12748,12749],{"class":5210,"line":5424},[5208,12750,12751],{},"    відсутній у DI-контейнері,\n",[5208,12753,12754],{"class":5210,"line":5872},[5208,12755,12756],{},"    застосунок не запуститься.\n",[5208,12758,12759],{"class":5210,"line":5877},[5208,12760,6026],{},[5208,12762,12763],{"class":5210,"line":5882},[5208,12764,12765],{},"    \u003Cb>Error:\u003C\u002Fb> Cannot resolve dependencies\n",[5208,12767,12768],{"class":5210,"line":5899},[5208,12769,12770],{},"  end note\n",[5208,12772,12773],{"class":5210,"line":5905},[5208,12774,5427],{},[5208,12776,12777],{"class":5210,"line":5937},[5208,12778,5261],{"emptyLinePlaceholder":5260},[5208,12780,12781],{"class":5210,"line":5942},[5208,12782,12783],{},"package \"Опціональна залежність (Soft Dependency)\" #DCFCE7 {\n",[5208,12785,12786],{"class":5210,"line":5948},[5208,12787,12788],{},"  rectangle \"OrdersService\" as OS #BFDBFE\n",[5208,12790,12791],{"class":5210,"line":5965},[5208,12792,12793],{},"  rectangle \"LoggerService\" as LS #BBF7D0\n",[5208,12795,12796],{"class":5210,"line":5970},[5208,12797,10396],{},[5208,12799,12800],{"class":5210,"line":5975},[5208,12801,12802],{},"  OS -down-> LS : @Optional()\n",[5208,12804,12805],{"class":5210,"line":5995},[5208,12806,10396],{},[5208,12808,12809],{"class":5210,"line":6023},[5208,12810,12811],{},"  note right of LS #D1FAE5\n",[5208,12813,12814],{"class":5210,"line":6029},[5208,12815,12816],{},"    ✅ Якщо LoggerService відсутній,\n",[5208,12818,12819],{"class":5210,"line":6035},[5208,12820,12821],{},"    OrdersService отримає \u003Cb>null\u003C\u002Fb>.\n",[5208,12823,12824],{"class":5210,"line":6040},[5208,12825,12826],{},"    Застосунок запуститься нормально.\n",[5208,12828,12829],{"class":5210,"line":6911},[5208,12830,6026],{},[5208,12832,12833],{"class":5210,"line":6933},[5208,12834,12835],{},"    \u003Cb>Injected value:\u003C\u002Fb> null | undefined\n",[5208,12837,12838],{"class":5210,"line":6939},[5208,12839,12770],{},[5208,12841,12842],{"class":5210,"line":6974},[5208,12843,5427],{},[5208,12845,12846],{"class":5210,"line":6979},[5208,12847,5261],{"emptyLinePlaceholder":5260},[5208,12849,12850],{"class":5210,"line":7407},[5208,12851,12852],{},"@enduml\n",[6178,12854,12856],{"id":12855},"таблиця-порівняння","Таблиця порівняння",[12858,12859,12860,12876],"table",{},[12861,12862,12863],"thead",{},[12864,12865,12866,12870,12873],"tr",{},[12867,12868,12869],"th",{},"Характеристика",[12867,12871,12872],{},"Обов'язкова залежність",[12867,12874,12875],{},"Опціональна залежність",[12877,12878,12879,12894,12911,12928,12948,12961],"tbody",{},[12864,12880,12881,12887,12890],{},[12882,12883,12884],"td",{},[5150,12885,12886],{},"Декоратор",[12882,12888,12889],{},"Без додаткових декораторів",[12882,12891,12892],{},[5099,12893,5101],{},[12864,12895,12896,12901,12904],{},[12882,12897,12898],{},[5150,12899,12900],{},"Поведінка при відсутності",[12882,12902,12903],{},"❌ Помилка під час запуску застосунку",[12882,12905,12906,12907,5666,12909],{},"✅ Ін'єкція ",[5099,12908,5665],{},[5099,12910,5669],{},[12864,12912,12913,12918,12923],{},[12882,12914,12915],{},[5150,12916,12917],{},"Типізація параметра",[12882,12919,12920],{},[5099,12921,12922],{},"dependency: SomeService",[12882,12924,12925],{},[5099,12926,12927],{},"dependency?: SomeService",[12864,12929,12930,12935,12938],{},[12882,12931,12932],{},[5150,12933,12934],{},"Перевірка перед використанням",[12882,12936,12937],{},"Не потрібна",[12882,12939,12940,5311,12943,5666,12946],{},[5150,12941,12942],{},"Обов'язкова",[5099,12944,12945],{},"if (this.dependency)",[5099,12947,5914],{},[12864,12949,12950,12955,12958],{},[12882,12951,12952],{},[5150,12953,12954],{},"Сценарії використання",[12882,12956,12957],{},"Критичні компоненти (БД, конфігурація)",[12882,12959,12960],{},"Другорядні функції (логування, кеш)",[12864,12962,12963,12968,12971],{},[12882,12964,12965],{},[5150,12966,12967],{},"Відповідальність за null",[12882,12969,12970],{},"DI-контейнер гарантує наявність",[12882,12972,12973],{},"Розробник перевіряє перед використанням",[5128,12975],{},[5084,12977,12979],{"id":12978},"практичний-приклад-система-повідомлень-з-опціональними-каналами","Практичний приклад: система повідомлень з опціональними каналами",[5135,12981,12982],{},"Розглянемо комплексний приклад застосунку електронної комерції, де система повідомлень підтримує кілька каналів доставки (email, SMS, push-notifications), але кожен канал є опціональним і може бути вимкнений у конфігурації.",[6178,12984,12986],{"id":12985},"крок-1-визначення-інтерфейсів-каналів","Крок 1: Визначення інтерфейсів каналів",[5199,12988,12990],{"className":5201,"code":12989,"language":5203,"meta":5204,"style":5204},"\u002F\u002F notifications\u002Finterfaces\u002Fnotification-channel.interface.ts\nexport interface NotificationChannel {\n  send(recipient: string, message: string): Promise\u003Cboolean>;\n  isAvailable(): boolean;\n}\n\n\u002F\u002F notifications\u002Fchannels\u002Femail-channel.service.ts\nimport { Injectable } from '@nestjs\u002Fcommon';\nimport { NotificationChannel } from '..\u002Finterfaces\u002Fnotification-channel.interface';\n\n@Injectable()\nexport class EmailChannel implements NotificationChannel {\n  async send(recipient: string, message: string): Promise\u003Cboolean> {\n    console.log(`📧 Sending email to ${recipient}: ${message}`);\n    \u002F\u002F Реальна логіка відправки через SMTP або сервіс (SendGrid, AWS SES)\n    return true;\n  }\n\n  isAvailable(): boolean {\n    return true;\n  }\n}\n\n\u002F\u002F notifications\u002Fchannels\u002Fsms-channel.service.ts\nimport { Injectable } from '@nestjs\u002Fcommon';\nimport { NotificationChannel } from '..\u002Finterfaces\u002Fnotification-channel.interface';\n\n@Injectable()\nexport class SmsChannel implements NotificationChannel {\n  async send(recipient: string, message: string): Promise\u003Cboolean> {\n    console.log(`📱 Sending SMS to ${recipient}: ${message}`);\n    \u002F\u002F Реальна логіка через Twilio, AWS SNS тощо\n    return true;\n  }\n\n  isAvailable(): boolean {\n    return !!process.env.SMS_API_KEY;\n  }\n}\n\n\u002F\u002F notifications\u002Fchannels\u002Fpush-channel.service.ts\nimport { Injectable } from '@nestjs\u002Fcommon';\nimport { NotificationChannel } from '..\u002Finterfaces\u002Fnotification-channel.interface';\n\n@Injectable()\nexport class PushChannel implements NotificationChannel {\n  async send(recipient: string, message: string): Promise\u003Cboolean> {\n    console.log(`🔔 Sending push notification to ${recipient}: ${message}`);\n    \u002F\u002F Реальна логіка через Firebase Cloud Messaging, OneSignal тощо\n    return true;\n  }\n\n  isAvailable(): boolean {\n    return !!process.env.PUSH_SERVICE_KEY;\n  }\n}\n",[5099,12991,12992,12997,13008,13041,13053,13057,13061,13066,13082,13100,13104,13112,13128,13161,13192,13197,13205,13209,13213,13223,13231,13235,13239,13243,13248,13264,13280,13284,13292,13307,13339,13370,13375,13383,13387,13391,13401,13421,13425,13429,13433,13438,13454,13470,13474,13482,13497,13529,13560,13565,13573,13577,13581,13591,13610,13614],{"__ignoreMap":5204},[5208,12993,12994],{"class":5210,"line":5211},[5208,12995,12996],{"class":5391},"\u002F\u002F notifications\u002Finterfaces\u002Fnotification-channel.interface.ts\n",[5208,12998,12999,13001,13003,13006],{"class":5210,"line":5239},[5208,13000,5279],{"class":5214},[5208,13002,10805],{"class":5282},[5208,13004,13005],{"class":5286}," NotificationChannel",[5208,13007,5290],{"class":5218},[5208,13009,13010,13013,13015,13018,13020,13022,13024,13026,13028,13030,13032,13034,13036,13038],{"class":5210,"line":5257},[5208,13011,13012],{"class":5270},"  send",[5208,13014,5299],{"class":5218},[5208,13016,13017],{"class":5222},"recipient",[5208,13019,5311],{"class":5218},[5208,13021,7177],{"class":5286},[5208,13023,5141],{"class":5218},[5208,13025,7334],{"class":5222},[5208,13027,5311],{"class":5218},[5208,13029,7177],{"class":5286},[5208,13031,7462],{"class":5218},[5208,13033,9347],{"class":5286},[5208,13035,8527],{"class":5218},[5208,13037,10820],{"class":5286},[5208,13039,13040],{"class":5218},">;\n",[5208,13042,13043,13046,13049,13051],{"class":5210,"line":5264},[5208,13044,13045],{"class":5270},"  isAvailable",[5208,13047,13048],{"class":5218},"(): ",[5208,13050,10820],{"class":5286},[5208,13052,5236],{"class":5218},[5208,13054,13055],{"class":5210,"line":5276},[5208,13056,5427],{"class":5218},[5208,13058,13059],{"class":5210,"line":5293},[5208,13060,5261],{"emptyLinePlaceholder":5260},[5208,13062,13063],{"class":5210,"line":5319},[5208,13064,13065],{"class":5391},"\u002F\u002F notifications\u002Fchannels\u002Femail-channel.service.ts\n",[5208,13067,13068,13070,13072,13074,13076,13078,13080],{"class":5210,"line":5324},[5208,13069,5215],{"class":5214},[5208,13071,5219],{"class":5218},[5208,13073,5223],{"class":5222},[5208,13075,5226],{"class":5218},[5208,13077,5229],{"class":5214},[5208,13079,5233],{"class":5232},[5208,13081,5236],{"class":5218},[5208,13083,13084,13086,13088,13091,13093,13095,13098],{"class":5210,"line":5346},[5208,13085,5215],{"class":5214},[5208,13087,5219],{"class":5218},[5208,13089,13090],{"class":5222},"NotificationChannel",[5208,13092,5226],{"class":5218},[5208,13094,5229],{"class":5214},[5208,13096,13097],{"class":5232}," '..\u002Finterfaces\u002Fnotification-channel.interface'",[5208,13099,5236],{"class":5218},[5208,13101,13102],{"class":5210,"line":5388},[5208,13103,5261],{"emptyLinePlaceholder":5260},[5208,13105,13106,13108,13110],{"class":5210,"line":5395},[5208,13107,5267],{"class":5218},[5208,13109,5223],{"class":5270},[5208,13111,5273],{"class":5218},[5208,13113,13114,13116,13118,13121,13124,13126],{"class":5210,"line":5418},[5208,13115,5279],{"class":5214},[5208,13117,5283],{"class":5282},[5208,13119,13120],{"class":5286}," EmailChannel",[5208,13122,13123],{"class":5282}," implements",[5208,13125,13005],{"class":5286},[5208,13127,5290],{"class":5218},[5208,13129,13130,13132,13135,13137,13139,13141,13143,13145,13147,13149,13151,13153,13155,13157,13159],{"class":5210,"line":5424},[5208,13131,5327],{"class":5282},[5208,13133,13134],{"class":5270}," send",[5208,13136,5299],{"class":5218},[5208,13138,13017],{"class":5222},[5208,13140,5311],{"class":5218},[5208,13142,7177],{"class":5286},[5208,13144,5141],{"class":5218},[5208,13146,7334],{"class":5222},[5208,13148,5311],{"class":5218},[5208,13150,7177],{"class":5286},[5208,13152,7462],{"class":5218},[5208,13154,9347],{"class":5286},[5208,13156,8527],{"class":5218},[5208,13158,10820],{"class":5286},[5208,13160,9354],{"class":5218},[5208,13162,13163,13165,13167,13169,13171,13174,13176,13178,13180,13182,13184,13186,13188,13190],{"class":5210,"line":5872},[5208,13164,6781],{"class":5222},[5208,13166,5352],{"class":5218},[5208,13168,5360],{"class":5270},[5208,13170,5299],{"class":5218},[5208,13172,13173],{"class":5232},"`📧 Sending email to ",[5208,13175,5368],{"class":5282},[5208,13177,13017],{"class":5222},[5208,13179,5379],{"class":5282},[5208,13181,5311],{"class":5232},[5208,13183,5368],{"class":5282},[5208,13185,7334],{"class":5222},[5208,13187,5379],{"class":5282},[5208,13189,5382],{"class":5232},[5208,13191,5385],{"class":5218},[5208,13193,13194],{"class":5210,"line":5877},[5208,13195,13196],{"class":5391},"    \u002F\u002F Реальна логіка відправки через SMTP або сервіс (SendGrid, AWS SES)\n",[5208,13198,13199,13201,13203],{"class":5210,"line":5882},[5208,13200,5398],{"class":5214},[5208,13202,9247],{"class":5282},[5208,13204,5236],{"class":5218},[5208,13206,13207],{"class":5210,"line":5899},[5208,13208,5421],{"class":5218},[5208,13210,13211],{"class":5210,"line":5905},[5208,13212,5261],{"emptyLinePlaceholder":5260},[5208,13214,13215,13217,13219,13221],{"class":5210,"line":5937},[5208,13216,13045],{"class":5270},[5208,13218,13048],{"class":5218},[5208,13220,10820],{"class":5286},[5208,13222,5290],{"class":5218},[5208,13224,13225,13227,13229],{"class":5210,"line":5942},[5208,13226,5398],{"class":5214},[5208,13228,9247],{"class":5282},[5208,13230,5236],{"class":5218},[5208,13232,13233],{"class":5210,"line":5948},[5208,13234,5421],{"class":5218},[5208,13236,13237],{"class":5210,"line":5965},[5208,13238,5427],{"class":5218},[5208,13240,13241],{"class":5210,"line":5970},[5208,13242,5261],{"emptyLinePlaceholder":5260},[5208,13244,13245],{"class":5210,"line":5975},[5208,13246,13247],{"class":5391},"\u002F\u002F notifications\u002Fchannels\u002Fsms-channel.service.ts\n",[5208,13249,13250,13252,13254,13256,13258,13260,13262],{"class":5210,"line":5995},[5208,13251,5215],{"class":5214},[5208,13253,5219],{"class":5218},[5208,13255,5223],{"class":5222},[5208,13257,5226],{"class":5218},[5208,13259,5229],{"class":5214},[5208,13261,5233],{"class":5232},[5208,13263,5236],{"class":5218},[5208,13265,13266,13268,13270,13272,13274,13276,13278],{"class":5210,"line":6023},[5208,13267,5215],{"class":5214},[5208,13269,5219],{"class":5218},[5208,13271,13090],{"class":5222},[5208,13273,5226],{"class":5218},[5208,13275,5229],{"class":5214},[5208,13277,13097],{"class":5232},[5208,13279,5236],{"class":5218},[5208,13281,13282],{"class":5210,"line":6029},[5208,13283,5261],{"emptyLinePlaceholder":5260},[5208,13285,13286,13288,13290],{"class":5210,"line":6035},[5208,13287,5267],{"class":5218},[5208,13289,5223],{"class":5270},[5208,13291,5273],{"class":5218},[5208,13293,13294,13296,13298,13301,13303,13305],{"class":5210,"line":6040},[5208,13295,5279],{"class":5214},[5208,13297,5283],{"class":5282},[5208,13299,13300],{"class":5286}," SmsChannel",[5208,13302,13123],{"class":5282},[5208,13304,13005],{"class":5286},[5208,13306,5290],{"class":5218},[5208,13308,13309,13311,13313,13315,13317,13319,13321,13323,13325,13327,13329,13331,13333,13335,13337],{"class":5210,"line":6911},[5208,13310,5327],{"class":5282},[5208,13312,13134],{"class":5270},[5208,13314,5299],{"class":5218},[5208,13316,13017],{"class":5222},[5208,13318,5311],{"class":5218},[5208,13320,7177],{"class":5286},[5208,13322,5141],{"class":5218},[5208,13324,7334],{"class":5222},[5208,13326,5311],{"class":5218},[5208,13328,7177],{"class":5286},[5208,13330,7462],{"class":5218},[5208,13332,9347],{"class":5286},[5208,13334,8527],{"class":5218},[5208,13336,10820],{"class":5286},[5208,13338,9354],{"class":5218},[5208,13340,13341,13343,13345,13347,13349,13352,13354,13356,13358,13360,13362,13364,13366,13368],{"class":5210,"line":6933},[5208,13342,6781],{"class":5222},[5208,13344,5352],{"class":5218},[5208,13346,5360],{"class":5270},[5208,13348,5299],{"class":5218},[5208,13350,13351],{"class":5232},"`📱 Sending SMS to ",[5208,13353,5368],{"class":5282},[5208,13355,13017],{"class":5222},[5208,13357,5379],{"class":5282},[5208,13359,5311],{"class":5232},[5208,13361,5368],{"class":5282},[5208,13363,7334],{"class":5222},[5208,13365,5379],{"class":5282},[5208,13367,5382],{"class":5232},[5208,13369,5385],{"class":5218},[5208,13371,13372],{"class":5210,"line":6939},[5208,13373,13374],{"class":5391},"    \u002F\u002F Реальна логіка через Twilio, AWS SNS тощо\n",[5208,13376,13377,13379,13381],{"class":5210,"line":6974},[5208,13378,5398],{"class":5214},[5208,13380,9247],{"class":5282},[5208,13382,5236],{"class":5218},[5208,13384,13385],{"class":5210,"line":6979},[5208,13386,5421],{"class":5218},[5208,13388,13389],{"class":5210,"line":7407},[5208,13390,5261],{"emptyLinePlaceholder":5260},[5208,13392,13393,13395,13397,13399],{"class":5210,"line":7412},[5208,13394,13045],{"class":5270},[5208,13396,13048],{"class":5218},[5208,13398,10820],{"class":5286},[5208,13400,5290],{"class":5218},[5208,13402,13403,13405,13408,13410,13412,13414,13416,13419],{"class":5210,"line":8207},[5208,13404,5398],{"class":5214},[5208,13406,13407],{"class":5218}," !!",[5208,13409,12494],{"class":5222},[5208,13411,5352],{"class":5218},[5208,13413,8945],{"class":5222},[5208,13415,5352],{"class":5218},[5208,13417,13418],{"class":6357},"SMS_API_KEY",[5208,13420,5236],{"class":5218},[5208,13422,13423],{"class":5210,"line":8214},[5208,13424,5421],{"class":5218},[5208,13426,13427],{"class":5210,"line":8257},[5208,13428,5427],{"class":5218},[5208,13430,13431],{"class":5210,"line":8270},[5208,13432,5261],{"emptyLinePlaceholder":5260},[5208,13434,13435],{"class":5210,"line":8276},[5208,13436,13437],{"class":5391},"\u002F\u002F notifications\u002Fchannels\u002Fpush-channel.service.ts\n",[5208,13439,13440,13442,13444,13446,13448,13450,13452],{"class":5210,"line":8289},[5208,13441,5215],{"class":5214},[5208,13443,5219],{"class":5218},[5208,13445,5223],{"class":5222},[5208,13447,5226],{"class":5218},[5208,13449,5229],{"class":5214},[5208,13451,5233],{"class":5232},[5208,13453,5236],{"class":5218},[5208,13455,13456,13458,13460,13462,13464,13466,13468],{"class":5210,"line":8303},[5208,13457,5215],{"class":5214},[5208,13459,5219],{"class":5218},[5208,13461,13090],{"class":5222},[5208,13463,5226],{"class":5218},[5208,13465,5229],{"class":5214},[5208,13467,13097],{"class":5232},[5208,13469,5236],{"class":5218},[5208,13471,13472],{"class":5210,"line":8316},[5208,13473,5261],{"emptyLinePlaceholder":5260},[5208,13475,13476,13478,13480],{"class":5210,"line":8344},[5208,13477,5267],{"class":5218},[5208,13479,5223],{"class":5270},[5208,13481,5273],{"class":5218},[5208,13483,13484,13486,13488,13491,13493,13495],{"class":5210,"line":8353},[5208,13485,5279],{"class":5214},[5208,13487,5283],{"class":5282},[5208,13489,13490],{"class":5286}," PushChannel",[5208,13492,13123],{"class":5282},[5208,13494,13005],{"class":5286},[5208,13496,5290],{"class":5218},[5208,13498,13499,13501,13503,13505,13507,13509,13511,13513,13515,13517,13519,13521,13523,13525,13527],{"class":5210,"line":8358},[5208,13500,5327],{"class":5282},[5208,13502,13134],{"class":5270},[5208,13504,5299],{"class":5218},[5208,13506,13017],{"class":5222},[5208,13508,5311],{"class":5218},[5208,13510,7177],{"class":5286},[5208,13512,5141],{"class":5218},[5208,13514,7334],{"class":5222},[5208,13516,5311],{"class":5218},[5208,13518,7177],{"class":5286},[5208,13520,7462],{"class":5218},[5208,13522,9347],{"class":5286},[5208,13524,8527],{"class":5218},[5208,13526,10820],{"class":5286},[5208,13528,9354],{"class":5218},[5208,13530,13531,13533,13535,13537,13539,13542,13544,13546,13548,13550,13552,13554,13556,13558],{"class":5210,"line":8363},[5208,13532,6781],{"class":5222},[5208,13534,5352],{"class":5218},[5208,13536,5360],{"class":5270},[5208,13538,5299],{"class":5218},[5208,13540,13541],{"class":5232},"`🔔 Sending push notification to ",[5208,13543,5368],{"class":5282},[5208,13545,13017],{"class":5222},[5208,13547,5379],{"class":5282},[5208,13549,5311],{"class":5232},[5208,13551,5368],{"class":5282},[5208,13553,7334],{"class":5222},[5208,13555,5379],{"class":5282},[5208,13557,5382],{"class":5232},[5208,13559,5385],{"class":5218},[5208,13561,13562],{"class":5210,"line":11245},[5208,13563,13564],{"class":5391},"    \u002F\u002F Реальна логіка через Firebase Cloud Messaging, OneSignal тощо\n",[5208,13566,13567,13569,13571],{"class":5210,"line":11273},[5208,13568,5398],{"class":5214},[5208,13570,9247],{"class":5282},[5208,13572,5236],{"class":5218},[5208,13574,13575],{"class":5210,"line":11279},[5208,13576,5421],{"class":5218},[5208,13578,13579],{"class":5210,"line":11284},[5208,13580,5261],{"emptyLinePlaceholder":5260},[5208,13582,13583,13585,13587,13589],{"class":5210,"line":11289},[5208,13584,13045],{"class":5270},[5208,13586,13048],{"class":5218},[5208,13588,10820],{"class":5286},[5208,13590,5290],{"class":5218},[5208,13592,13593,13595,13597,13599,13601,13603,13605,13608],{"class":5210,"line":11310},[5208,13594,5398],{"class":5214},[5208,13596,13407],{"class":5218},[5208,13598,12494],{"class":5222},[5208,13600,5352],{"class":5218},[5208,13602,8945],{"class":5222},[5208,13604,5352],{"class":5218},[5208,13606,13607],{"class":6357},"PUSH_SERVICE_KEY",[5208,13609,5236],{"class":5218},[5208,13611,13612],{"class":5210,"line":11335},[5208,13613,5421],{"class":5218},[5208,13615,13616],{"class":5210,"line":11340},[5208,13617,5427],{"class":5218},[6178,13619,13621],{"id":13620},"крок-2-сервіс-повідомлень-з-опціональними-каналами","Крок 2: Сервіс повідомлень з опціональними каналами",[5199,13623,13625],{"className":5201,"code":13624,"language":5203,"meta":5204,"style":5204},"\u002F\u002F notifications\u002Fnotification.service.ts\nimport { Injectable, Optional } from '@nestjs\u002Fcommon';\nimport { EmailChannel } from '.\u002Fchannels\u002Femail-channel.service';\nimport { SmsChannel } from '.\u002Fchannels\u002Fsms-channel.service';\nimport { PushChannel } from '.\u002Fchannels\u002Fpush-channel.service';\n\n@Injectable()\nexport class NotificationService {\n  private readonly availableChannels: string[] = [];\n\n  constructor(\n    @Optional() private readonly emailChannel?: EmailChannel,\n    @Optional() private readonly smsChannel?: SmsChannel,\n    @Optional() private readonly pushChannel?: PushChannel\n  ) {\n    \u002F\u002F Визначаємо доступні канали при ініціалізації\n    if (this.emailChannel?.isAvailable()) {\n      this.availableChannels.push('email');\n    }\n    if (this.smsChannel?.isAvailable()) {\n      this.availableChannels.push('sms');\n    }\n    if (this.pushChannel?.isAvailable()) {\n      this.availableChannels.push('push');\n    }\n\n    console.log(`Notification service initialized with channels: ${this.availableChannels.join(', ')}`);\n  }\n\n  \u002F**\n   * Відправити повідомлення через всі доступні канали\n   *\u002F\n  async sendToAll(recipient: string, message: string): Promise\u003Cvoid> {\n    const results: Array\u003C{ channel: string; success: boolean }> = [];\n\n    if (this.emailChannel) {\n      try {\n        const success = await this.emailChannel.send(recipient, message);\n        results.push({ channel: 'email', success });\n      } catch (error) {\n        console.error('Email sending failed:', error);\n        results.push({ channel: 'email', success: false });\n      }\n    }\n\n    if (this.smsChannel) {\n      try {\n        const success = await this.smsChannel.send(recipient, message);\n        results.push({ channel: 'sms', success });\n      } catch (error) {\n        console.error('SMS sending failed:', error);\n        results.push({ channel: 'sms', success: false });\n      }\n    }\n\n    if (this.pushChannel) {\n      try {\n        const success = await this.pushChannel.send(recipient, message);\n        results.push({ channel: 'push', success });\n      } catch (error) {\n        console.error('Push notification failed:', error);\n        results.push({ channel: 'push', success: false });\n      }\n    }\n\n    console.log('Notification results:', results);\n  }\n\n  \u002F**\n   * Відправити повідомлення через конкретний канал\n   *\u002F\n  async sendViaChannel(\n    channel: 'email' | 'sms' | 'push',\n    recipient: string,\n    message: string\n  ): Promise\u003Cboolean> {\n    switch (channel) {\n      case 'email':\n        if (!this.emailChannel) {\n          console.warn('Email channel not available');\n          return false;\n        }\n        return this.emailChannel.send(recipient, message);\n\n      case 'sms':\n        if (!this.smsChannel) {\n          console.warn('SMS channel not available');\n          return false;\n        }\n        return this.smsChannel.send(recipient, message);\n\n      case 'push':\n        if (!this.pushChannel) {\n          console.warn('Push channel not available');\n          return false;\n        }\n        return this.pushChannel.send(recipient, message);\n\n      default:\n        throw new Error(`Unknown channel: ${channel}`);\n    }\n  }\n\n  \u002F**\n   * Перевірка доступності каналу\n   *\u002F\n  isChannelAvailable(channel: 'email' | 'sms' | 'push'): boolean {\n    return this.availableChannels.includes(channel);\n  }\n\n  \u002F**\n   * Отримати список доступних каналів\n   *\u002F\n  getAvailableChannels(): string[] {\n    return [...this.availableChannels];\n  }\n}\n",[5099,13626,13627,13632,13652,13670,13688,13706,13710,13718,13729,13745,13749,13755,13776,13797,13817,13821,13826,13847,13868,13872,13891,13910,13914,13933,13952,13956,13960,13999,14003,14007,14012,14017,14022,14055,14090,14094,14108,14115,14147,14170,14182,14201,14224,14228,14232,14236,14250,14256,14286,14307,14319,14338,14360,14364,14368,14372,14386,14392,14422,14443,14455,14474,14496,14500,14505,14510,14531,14536,14541,14546,14552,14557,14567,14587,14599,14610,14624,14636,14647,14662,14678,14687,14692,14717,14722,14731,14746,14762,14771,14776,14801,14806,14815,14830,14846,14855,14860,14885,14890,14898,14925,14930,14935,14940,14945,14951,14956,14984,15006,15011,15016,15021,15027,15032,15045,15062,15067],{"__ignoreMap":5204},[5208,13628,13629],{"class":5210,"line":5211},[5208,13630,13631],{"class":5391},"\u002F\u002F notifications\u002Fnotification.service.ts\n",[5208,13633,13634,13636,13638,13640,13642,13644,13646,13648,13650],{"class":5210,"line":5239},[5208,13635,5215],{"class":5214},[5208,13637,5219],{"class":5218},[5208,13639,5223],{"class":5222},[5208,13641,5141],{"class":5218},[5208,13643,5722],{"class":5222},[5208,13645,5226],{"class":5218},[5208,13647,5229],{"class":5214},[5208,13649,5233],{"class":5232},[5208,13651,5236],{"class":5218},[5208,13653,13654,13656,13658,13661,13663,13665,13668],{"class":5210,"line":5257},[5208,13655,5215],{"class":5214},[5208,13657,5219],{"class":5218},[5208,13659,13660],{"class":5222},"EmailChannel",[5208,13662,5226],{"class":5218},[5208,13664,5229],{"class":5214},[5208,13666,13667],{"class":5232}," '.\u002Fchannels\u002Femail-channel.service'",[5208,13669,5236],{"class":5218},[5208,13671,13672,13674,13676,13679,13681,13683,13686],{"class":5210,"line":5264},[5208,13673,5215],{"class":5214},[5208,13675,5219],{"class":5218},[5208,13677,13678],{"class":5222},"SmsChannel",[5208,13680,5226],{"class":5218},[5208,13682,5229],{"class":5214},[5208,13684,13685],{"class":5232}," '.\u002Fchannels\u002Fsms-channel.service'",[5208,13687,5236],{"class":5218},[5208,13689,13690,13692,13694,13697,13699,13701,13704],{"class":5210,"line":5276},[5208,13691,5215],{"class":5214},[5208,13693,5219],{"class":5218},[5208,13695,13696],{"class":5222},"PushChannel",[5208,13698,5226],{"class":5218},[5208,13700,5229],{"class":5214},[5208,13702,13703],{"class":5232}," '.\u002Fchannels\u002Fpush-channel.service'",[5208,13705,5236],{"class":5218},[5208,13707,13708],{"class":5210,"line":5293},[5208,13709,5261],{"emptyLinePlaceholder":5260},[5208,13711,13712,13714,13716],{"class":5210,"line":5319},[5208,13713,5267],{"class":5218},[5208,13715,5223],{"class":5270},[5208,13717,5273],{"class":5218},[5208,13719,13720,13722,13724,13727],{"class":5210,"line":5324},[5208,13721,5279],{"class":5214},[5208,13723,5283],{"class":5282},[5208,13725,13726],{"class":5286}," NotificationService",[5208,13728,5290],{"class":5218},[5208,13730,13731,13733,13735,13738,13740,13742],{"class":5210,"line":5346},[5208,13732,6914],{"class":5282},[5208,13734,5305],{"class":5282},[5208,13736,13737],{"class":5222}," availableChannels",[5208,13739,5311],{"class":5218},[5208,13741,7177],{"class":5286},[5208,13743,13744],{"class":5218},"[] = [];\n",[5208,13746,13747],{"class":5210,"line":5388},[5208,13748,5261],{"emptyLinePlaceholder":5260},[5208,13750,13751,13753],{"class":5210,"line":5395},[5208,13752,5296],{"class":5282},[5208,13754,5775],{"class":5218},[5208,13756,13757,13759,13761,13763,13765,13767,13770,13772,13774],{"class":5210,"line":5418},[5208,13758,5780],{"class":5218},[5208,13760,5722],{"class":5270},[5208,13762,5785],{"class":5218},[5208,13764,5302],{"class":5282},[5208,13766,5305],{"class":5282},[5208,13768,13769],{"class":5222}," emailChannel",[5208,13771,5794],{"class":5218},[5208,13773,13660],{"class":5286},[5208,13775,7940],{"class":5218},[5208,13777,13778,13780,13782,13784,13786,13788,13791,13793,13795],{"class":5210,"line":5424},[5208,13779,5780],{"class":5218},[5208,13781,5722],{"class":5270},[5208,13783,5785],{"class":5218},[5208,13785,5302],{"class":5282},[5208,13787,5305],{"class":5282},[5208,13789,13790],{"class":5222}," 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available'",[5208,14677,5385],{"class":5218},[5208,14679,14681,14683,14685],{"class":5210,"line":14680},81,[5208,14682,12526],{"class":5214},[5208,14684,14221],{"class":5282},[5208,14686,5236],{"class":5218},[5208,14688,14690],{"class":5210,"line":14689},82,[5208,14691,12540],{"class":5218},[5208,14693,14695,14697,14699,14701,14703,14705,14707,14709,14711,14713,14715],{"class":5210,"line":14694},83,[5208,14696,6754],{"class":5214},[5208,14698,6689],{"class":5282},[5208,14700,5352],{"class":5218},[5208,14702,13838],{"class":5222},[5208,14704,5352],{"class":5218},[5208,14706,14136],{"class":5270},[5208,14708,5299],{"class":5218},[5208,14710,13017],{"class":5222},[5208,14712,5141],{"class":5218},[5208,14714,7334],{"class":5222},[5208,14716,5385],{"class":5218},[5208,14718,14720],{"class":5210,"line":14719},84,[5208,14721,5261],{"emptyLinePlaceholder":5260},[5208,14723,14725,14727,14729],{"class":5210,"line":14724},85,[5208,14726,14641],{"class":5214},[5208,14728,14300],{"class":5232},[5208,14730,14646],{"class":5218},[5208,14732,14734,14736,14738,14740,14742,14744],{"class":5210,"line":14733},86,[5208,14735,12489],{"class":5214},[5208,14737,11162],{"class":5218},[5208,14739,5812],{"class":5282},[5208,14741,5352],{"class":5218},[5208,14743,13884],{"class":5222},[5208,14745,5343],{"class":5218},[5208,14747,14749,14751,14753,14755,14757,14760],{"class":5210,"line":14748},87,[5208,14750,12510],{"class":5222},[5208,14752,5352],{"class":5218},[5208,14754,6475],{"class":5270},[5208,14756,5299],{"class":5218},[5208,14758,14759],{"class":5232},"'SMS channel not available'",[5208,14761,5385],{"class":5218},[5208,14763,14765,14767,14769],{"class":5210,"line":14764},88,[5208,14766,12526],{"class":5214},[5208,14768,14221],{"class":5282},[5208,14770,5236],{"class":5218},[5208,14772,14774],{"class":5210,"line":14773},89,[5208,14775,12540],{"class":5218},[5208,14777,14779,14781,14783,14785,14787,14789,14791,14793,14795,14797,14799],{"class":5210,"line":14778},90,[5208,14780,6754],{"class":5214},[5208,14782,6689],{"class":5282},[5208,14784,5352],{"class":5218},[5208,14786,13884],{"class":5222},[5208,14788,5352],{"class":5218},[5208,14790,14136],{"class":5270},[5208,14792,5299],{"class":5218},[5208,14794,13017],{"class":5222},[5208,14796,5141],{"class":5218},[5208,14798,7334],{"class":5222},[5208,14800,5385],{"class":5218},[5208,14802,14804],{"class":5210,"line":14803},91,[5208,14805,5261],{"emptyLinePlaceholder":5260},[5208,14807,14809,14811,14813],{"class":5210,"line":14808},92,[5208,14810,14641],{"class":5214},[5208,14812,14436],{"class":5232},[5208,14814,14646],{"class":5218},[5208,14816,14818,14820,14822,14824,14826,14828],{"class":5210,"line":14817},93,[5208,14819,12489],{"class":5214},[5208,14821,11162],{"class":5218},[5208,14823,5812],{"class":5282},[5208,14825,5352],{"class":5218},[5208,14827,13926],{"class":5222},[5208,14829,5343],{"class":5218},[5208,14831,14833,14835,14837,14839,14841,14844],{"class":5210,"line":14832},94,[5208,14834,12510],{"class":5222},[5208,14836,5352],{"class":5218},[5208,14838,6475],{"class":5270},[5208,14840,5299],{"class":5218},[5208,14842,14843],{"class":5232},"'Push channel not available'",[5208,14845,5385],{"class":5218},[5208,14847,14849,14851,14853],{"class":5210,"line":14848},95,[5208,14850,12526],{"class":5214},[5208,14852,14221],{"class":5282},[5208,14854,5236],{"class":5218},[5208,14856,14858],{"class":5210,"line":14857},96,[5208,14859,12540],{"class":5218},[5208,14861,14863,14865,14867,14869,14871,14873,14875,14877,14879,14881,14883],{"class":5210,"line":14862},97,[5208,14864,6754],{"class":5214},[5208,14866,6689],{"class":5282},[5208,14868,5352],{"class":5218},[5208,14870,13926],{"class":5222},[5208,14872,5352],{"class":5218},[5208,14874,14136],{"class":5270},[5208,14876,5299],{"class":5218},[5208,14878,13017],{"class":5222},[5208,14880,5141],{"class":5218},[5208,14882,7334],{"class":5222},[5208,14884,5385],{"class":5218},[5208,14886,14888],{"class":5210,"line":14887},98,[5208,14889,5261],{"emptyLinePlaceholder":5260},[5208,14891,14893,14896],{"class":5210,"line":14892},99,[5208,14894,14895],{"class":5214},"      default",[5208,14897,14646],{"class":5218},[5208,14899,14901,14904,14907,14910,14912,14915,14917,14919,14921,14923],{"class":5210,"line":14900},100,[5208,14902,14903],{"class":5214},"        throw",[5208,14905,14906],{"class":5282}," new",[5208,14908,14909],{"class":5270}," Error",[5208,14911,5299],{"class":5218},[5208,14913,14914],{"class":5232},"`Unknown channel: ",[5208,14916,5368],{"class":5282},[5208,14918,14072],{"class":5222},[5208,14920,5379],{"class":5282},[5208,14922,5382],{"class":5232},[5208,14924,5385],{"class":5218},[5208,14926,14928],{"class":5210,"line":14927},101,[5208,14929,5869],{"class":5218},[5208,14931,14933],{"class":5210,"line":14932},102,[5208,14934,5421],{"class":5218},[5208,14936,14938],{"class":5210,"line":14937},103,[5208,14939,5261],{"emptyLinePlaceholder":5260},[5208,14941,14943],{"class":5210,"line":14942},104,[5208,14944,14011],{"class":5391},[5208,14946,14948],{"class":5210,"line":14947},105,[5208,14949,14950],{"class":5391},"   * Перевірка доступності каналу\n",[5208,14952,14954],{"class":5210,"line":14953},106,[5208,14955,14021],{"class":5391},[5208,14957,14959,14962,14964,14966,14968,14970,14972,14974,14976,14978,14980,14982],{"class":5210,"line":14958},107,[5208,14960,14961],{"class":5270},"  isChannelAvailable",[5208,14963,5299],{"class":5218},[5208,14965,14072],{"class":5222},[5208,14967,5311],{"class":5218},[5208,14969,13865],{"class":5232},[5208,14971,7091],{"class":5218},[5208,14973,13907],{"class":5232},[5208,14975,7091],{"class":5218},[5208,14977,13949],{"class":5232},[5208,14979,7462],{"class":5218},[5208,14981,10820],{"class":5286},[5208,14983,5290],{"class":5218},[5208,14985,14987,14989,14991,14993,14995,14997,15000,15002,15004],{"class":5210,"line":14986},108,[5208,14988,5398],{"class":5214},[5208,14990,6689],{"class":5282},[5208,14992,5352],{"class":5218},[5208,14994,13855],{"class":5222},[5208,14996,5352],{"class":5218},[5208,14998,14999],{"class":5270},"includes",[5208,15001,5299],{"class":5218},[5208,15003,14072],{"class":5222},[5208,15005,5385],{"class":5218},[5208,15007,15009],{"class":5210,"line":15008},109,[5208,15010,5421],{"class":5218},[5208,15012,15014],{"class":5210,"line":15013},110,[5208,15015,5261],{"emptyLinePlaceholder":5260},[5208,15017,15019],{"class":5210,"line":15018},111,[5208,15020,14011],{"class":5391},[5208,15022,15024],{"class":5210,"line":15023},112,[5208,15025,15026],{"class":5391},"   * Отримати список доступних каналів\n",[5208,15028,15030],{"class":5210,"line":15029},113,[5208,15031,14021],{"class":5391},[5208,15033,15035,15038,15040,15042],{"class":5210,"line":15034},114,[5208,15036,15037],{"class":5270},"  getAvailableChannels",[5208,15039,13048],{"class":5218},[5208,15041,7177],{"class":5286},[5208,15043,15044],{"class":5218},"[] {\n",[5208,15046,15048,15050,15053,15055,15057,15059],{"class":5210,"line":15047},115,[5208,15049,5398],{"class":5214},[5208,15051,15052],{"class":5218}," [...",[5208,15054,5812],{"class":5282},[5208,15056,5352],{"class":5218},[5208,15058,13855],{"class":5222},[5208,15060,15061],{"class":5218},"];\n",[5208,15063,15065],{"class":5210,"line":15064},116,[5208,15066,5421],{"class":5218},[5208,15068,15070],{"class":5210,"line":15069},117,[5208,15071,5427],{"class":5218},[6178,15073,15075],{"id":15074},"крок-3-конфігурація-модуля","Крок 3: Конфігурація модуля",[5199,15077,15079],{"className":5201,"code":15078,"language":5203,"meta":5204,"style":5204},"\u002F\u002F notifications\u002Fnotification.module.ts\nimport { Module } from '@nestjs\u002Fcommon';\nimport { NotificationService } from '.\u002Fnotification.service';\nimport { EmailChannel } from '.\u002Fchannels\u002Femail-channel.service';\nimport { SmsChannel } from '.\u002Fchannels\u002Fsms-channel.service';\nimport { PushChannel } from '.\u002Fchannels\u002Fpush-channel.service';\n\n@Module({\n  providers: [\n    NotificationService,\n    \n    \u002F\u002F Умовна реєстрація каналів на основі змінних оточення\n    ...(process.env.EMAIL_ENABLED === 'true' ? [EmailChannel] : []),\n    ...(process.env.SMS_ENABLED === 'true' ? [SmsChannel] : []),\n    ...(process.env.PUSH_ENABLED === 'true' ? [PushChannel] : [])\n  ],\n  exports: [NotificationService]\n})\nexport class NotificationModule {}\n",[5099,15080,15081,15086,15102,15118,15134,15150,15166,15170,15178,15184,15191,15195,15200,15230,15255,15281,15285,15295,15299],{"__ignoreMap":5204},[5208,15082,15083],{"class":5210,"line":5211},[5208,15084,15085],{"class":5391},"\u002F\u002F notifications\u002Fnotification.module.ts\n",[5208,15087,15088,15090,15092,15094,15096,15098,15100],{"class":5210,"line":5239},[5208,15089,5215],{"class":5214},[5208,15091,5219],{"class":5218},[5208,15093,5449],{"class":5222},[5208,15095,5226],{"class":5218},[5208,15097,5229],{"class":5214},[5208,15099,5233],{"class":5232},[5208,15101,5236],{"class":5218},[5208,15103,15104,15106,15108,15110,15112,15114,15116],{"class":5210,"line":5257},[5208,15105,5215],{"class":5214},[5208,15107,5219],{"class":5218},[5208,15109,9880],{"class":5222},[5208,15111,5226],{"class":5218},[5208,15113,5229],{"class":5214},[5208,15115,9887],{"class":5232},[5208,15117,5236],{"class":5218},[5208,15119,15120,15122,15124,15126,15128,15130,15132],{"class":5210,"line":5264},[5208,15121,5215],{"class":5214},[5208,15123,5219],{"class":5218},[5208,15125,13660],{"class":5222},[5208,15127,5226],{"class":5218},[5208,15129,5229],{"class":5214},[5208,15131,13667],{"class":5232},[5208,15133,5236],{"class":5218},[5208,15135,15136,15138,15140,15142,15144,15146,15148],{"class":5210,"line":5276},[5208,15137,5215],{"class":5214},[5208,15139,5219],{"class":5218},[5208,15141,13678],{"class":5222},[5208,15143,5226],{"class":5218},[5208,15145,5229],{"class":5214},[5208,15147,13685],{"class":5232},[5208,15149,5236],{"class":5218},[5208,15151,15152,15154,15156,15158,15160,15162,15164],{"class":5210,"line":5293},[5208,15153,5215],{"class":5214},[5208,15155,5219],{"class":5218},[5208,15157,13696],{"class":5222},[5208,15159,5226],{"class":5218},[5208,15161,5229],{"class":5214},[5208,15163,13703],{"class":5232},[5208,15165,5236],{"class":5218},[5208,15167,15168],{"class":5210,"line":5319},[5208,15169,5261],{"emptyLinePlaceholder":5260},[5208,15171,15172,15174,15176],{"class":5210,"line":5324},[5208,15173,5267],{"class":5218},[5208,15175,5449],{"class":5270},[5208,15177,5452],{"class":5218},[5208,15179,15180,15182],{"class":5210,"line":5346},[5208,15181,5457],{"class":5222},[5208,15183,5460],{"class":5218},[5208,15185,15186,15189],{"class":5210,"line":5388},[5208,15187,15188],{"class":5222},"    NotificationService",[5208,15190,7940],{"class":5218},[5208,15192,15193],{"class":5210,"line":5395},[5208,15194,6026],{"class":5218},[5208,15196,15197],{"class":5210,"line":5418},[5208,15198,15199],{"class":5391},"    \u002F\u002F Умовна реєстрація каналів на основі змінних оточення\n",[5208,15201,15202,15205,15207,15209,15211,15213,15216,15219,15222,15225,15227],{"class":5210,"line":5424},[5208,15203,15204],{"class":5218},"    ...(",[5208,15206,12494],{"class":5222},[5208,15208,5352],{"class":5218},[5208,15210,8945],{"class":5222},[5208,15212,5352],{"class":5218},[5208,15214,15215],{"class":6357},"EMAIL_ENABLED",[5208,15217,15218],{"class":5218}," === ",[5208,15220,15221],{"class":5232},"'true'",[5208,15223,15224],{"class":5218}," ? [",[5208,15226,13660],{"class":5222},[5208,15228,15229],{"class":5218},"] : []),\n",[5208,15231,15232,15234,15236,15238,15240,15242,15245,15247,15249,15251,15253],{"class":5210,"line":5872},[5208,15233,15204],{"class":5218},[5208,15235,12494],{"class":5222},[5208,15237,5352],{"class":5218},[5208,15239,8945],{"class":5222},[5208,15241,5352],{"class":5218},[5208,15243,15244],{"class":6357},"SMS_ENABLED",[5208,15246,15218],{"class":5218},[5208,15248,15221],{"class":5232},[5208,15250,15224],{"class":5218},[5208,15252,13678],{"class":5222},[5208,15254,15229],{"class":5218},[5208,15256,15257,15259,15261,15263,15265,15267,15270,15272,15274,15276,15278],{"class":5210,"line":5877},[5208,15258,15204],{"class":5218},[5208,15260,12494],{"class":5222},[5208,15262,5352],{"class":5218},[5208,15264,8945],{"class":5222},[5208,15266,5352],{"class":5218},[5208,15268,15269],{"class":6357},"PUSH_ENABLED",[5208,15271,15218],{"class":5218},[5208,15273,15221],{"class":5232},[5208,15275,15224],{"class":5218},[5208,15277,13696],{"class":5222},[5208,15279,15280],{"class":5218},"] : [])\n",[5208,15282,15283],{"class":5210,"line":5882},[5208,15284,12629],{"class":5218},[5208,15286,15287,15289,15291,15293],{"class":5210,"line":5899},[5208,15288,12634],{"class":5222},[5208,15290,12637],{"class":5218},[5208,15292,9880],{"class":5222},[5208,15294,12642],{"class":5218},[5208,15296,15297],{"class":5210,"line":5905},[5208,15298,5480],{"class":5218},[5208,15300,15301,15303,15305,15308],{"class":5210,"line":5937},[5208,15302,5279],{"class":5214},[5208,15304,5283],{"class":5282},[5208,15306,15307],{"class":5286}," NotificationModule",[5208,15309,5492],{"class":5218},[6178,15311,15313],{"id":15312},"крок-4-використання-у-бізнес-логіці","Крок 4: Використання у бізнес-логіці",[5199,15315,15317],{"className":5201,"code":15316,"language":5203,"meta":5204,"style":5204},"\u002F\u002F orders\u002Forders.service.ts\nimport { Injectable } from '@nestjs\u002Fcommon';\nimport { NotificationService } from '..\u002Fnotifications\u002Fnotification.service';\n\n@Injectable()\nexport class OrdersService {\n  constructor(private readonly notifications: NotificationService) {\n    console.log(\n      `Orders service initialized. Available notification channels: ${this.notifications.getAvailableChannels().join(', ')}`\n    );\n  }\n\n  async createOrder(userId: string, items: any[]) {\n    \u002F\u002F Створення замовлення\n    const order = {\n      id: Date.now(),\n      userId,\n      items,\n      status: 'pending',\n      createdAt: new Date()\n    };\n\n    console.log(`Order created: ${order.id}`);\n\n    \u002F\u002F Відправка повідомлення через всі доступні канали\n    await this.notifications.sendToAll(\n      userId,\n      `Your order #${order.id} has been successfully created!`\n    );\n\n    return order;\n  }\n\n  async shipOrder(orderId: number, trackingNumber: string) {\n    console.log(`Shipping order ${orderId} with tracking: ${trackingNumber}`);\n\n    \u002F\u002F Спроба відправити SMS (якщо канал доступний)\n    if (this.notifications.isChannelAvailable('sms')) {\n      await this.notifications.sendViaChannel(\n        'sms',\n        'user-phone',\n        `Your order #${orderId} has been shipped. Tracking: ${trackingNumber}`\n      );\n    } else {\n      \u002F\u002F Fallback на email\n      if (this.notifications.isChannelAvailable('email')) {\n        await this.notifications.sendViaChannel(\n          'email',\n          'user@example.com',\n          `Your order #${orderId} has been shipped. Tracking: ${trackingNumber}`\n        );\n      }\n    }\n  }\n}\n",[5099,15318,15319,15324,15340,15357,15361,15369,15379,15397,15407,15440,15444,15448,15452,15478,15483,15491,15504,15510,15517,15526,15537,15542,15546,15573,15577,15582,15599,15605,15622,15626,15630,15638,15642,15646,15672,15704,15708,15713,15737,15754,15761,15768,15790,15795,15803,15808,15830,15846,15853,15860,15881,15886,15890,15894,15898],{"__ignoreMap":5204},[5208,15320,15321],{"class":5210,"line":5211},[5208,15322,15323],{"class":5391},"\u002F\u002F orders\u002Forders.service.ts\n",[5208,15325,15326,15328,15330,15332,15334,15336,15338],{"class":5210,"line":5239},[5208,15327,5215],{"class":5214},[5208,15329,5219],{"class":5218},[5208,15331,5223],{"class":5222},[5208,15333,5226],{"class":5218},[5208,15335,5229],{"class":5214},[5208,15337,5233],{"class":5232},[5208,15339,5236],{"class":5218},[5208,15341,15342,15344,15346,15348,15350,15352,15355],{"class":5210,"line":5257},[5208,15343,5215],{"class":5214},[5208,15345,5219],{"class":5218},[5208,15347,9880],{"class":5222},[5208,15349,5226],{"class":5218},[5208,15351,5229],{"class":5214},[5208,15353,15354],{"class":5232}," '..\u002Fnotifications\u002Fnotification.service'",[5208,15356,5236],{"class":5218},[5208,15358,15359],{"class":5210,"line":5264},[5208,15360,5261],{"emptyLinePlaceholder":5260},[5208,15362,15363,15365,15367],{"class":5210,"line":5276},[5208,15364,5267],{"class":5218},[5208,15366,5223],{"class":5270},[5208,15368,5273],{"class":5218},[5208,15370,15371,15373,15375,15377],{"class":5210,"line":5293},[5208,15372,5279],{"class":5214},[5208,15374,5283],{"class":5282},[5208,15376,6257],{"class":5286},[5208,15378,5290],{"class":5218},[5208,15380,15381,15383,15385,15387,15389,15391,15393,15395],{"class":5210,"line":5319},[5208,15382,5296],{"class":5282},[5208,15384,5299],{"class":5218},[5208,15386,5302],{"class":5282},[5208,15388,5305],{"class":5282},[5208,15390,9954],{"class":5222},[5208,15392,5311],{"class":5218},[5208,15394,9880],{"class":5286},[5208,15396,5343],{"class":5218},[5208,15398,15399,15401,15403,15405],{"class":5210,"line":5324},[5208,15400,6781],{"class":5222},[5208,15402,5352],{"class":5218},[5208,15404,5360],{"class":5270},[5208,15406,5775],{"class":5218},[5208,15408,15409,15412,15414,15416,15418,15420,15422,15425,15428,15430,15432,15434,15436,15438],{"class":5210,"line":5346},[5208,15410,15411],{"class":5232},"      `Orders service initialized. Available notification channels: ",[5208,15413,5368],{"class":5282},[5208,15415,5812],{"class":5282},[5208,15417,5352],{"class":5373},[5208,15419,10108],{"class":5222},[5208,15421,5352],{"class":5373},[5208,15423,15424],{"class":5270},"getAvailableChannels",[5208,15426,15427],{"class":5373},"().",[5208,15429,13985],{"class":5270},[5208,15431,5299],{"class":5373},[5208,15433,13990],{"class":5232},[5208,15435,6184],{"class":5373},[5208,15437,5379],{"class":5282},[5208,15439,8799],{"class":5232},[5208,15441,15442],{"class":5210,"line":5388},[5208,15443,8200],{"class":5218},[5208,15445,15446],{"class":5210,"line":5395},[5208,15447,5421],{"class":5218},[5208,15449,15450],{"class":5210,"line":5418},[5208,15451,5261],{"emptyLinePlaceholder":5260},[5208,15453,15454,15456,15458,15460,15462,15464,15466,15468,15471,15473,15475],{"class":5210,"line":5424},[5208,15455,5327],{"class":5282},[5208,15457,6293],{"class":5270},[5208,15459,5299],{"class":5218},[5208,15461,5985],{"class":5222},[5208,15463,5311],{"class":5218},[5208,15465,7177],{"class":5286},[5208,15467,5141],{"class":5218},[5208,15469,15470],{"class":5222},"items",[5208,15472,5311],{"class":5218},[5208,15474,5340],{"class":5286},[5208,15476,15477],{"class":5218},"[]) {\n",[5208,15479,15480],{"class":5210,"line":5872},[5208,15481,15482],{"class":5391},"    \u002F\u002F Створення замовлення\n",[5208,15484,15485,15487,15489],{"class":5210,"line":5877},[5208,15486,6354],{"class":5282},[5208,15488,6358],{"class":6357},[5208,15490,7929],{"class":5218},[5208,15492,15493,15496,15498,15500,15502],{"class":5210,"line":5882},[5208,15494,15495],{"class":5222},"      id:",[5208,15497,6366],{"class":5222},[5208,15499,5352],{"class":5218},[5208,15501,6371],{"class":5270},[5208,15503,8182],{"class":5218},[5208,15505,15506,15508],{"class":5210,"line":5899},[5208,15507,10067],{"class":5222},[5208,15509,7940],{"class":5218},[5208,15511,15512,15515],{"class":5210,"line":5905},[5208,15513,15514],{"class":5222},"      items",[5208,15516,7940],{"class":5218},[5208,15518,15519,15522,15524],{"class":5210,"line":5937},[5208,15520,15521],{"class":5222},"      status:",[5208,15523,6384],{"class":5232},[5208,15525,7940],{"class":5218},[5208,15527,15528,15531,15533,15535],{"class":5210,"line":5942},[5208,15529,15530],{"class":5222},"      createdAt:",[5208,15532,14906],{"class":5282},[5208,15534,6366],{"class":5270},[5208,15536,5273],{"class":5218},[5208,15538,15539],{"class":5210,"line":5948},[5208,15540,15541],{"class":5218},"    };\n",[5208,15543,15544],{"class":5210,"line":5965},[5208,15545,5261],{"emptyLinePlaceholder":5260},[5208,15547,15548,15550,15552,15554,15556,15559,15561,15563,15565,15567,15569,15571],{"class":5210,"line":5970},[5208,15549,6781],{"class":5222},[5208,15551,5352],{"class":5218},[5208,15553,5360],{"class":5270},[5208,15555,5299],{"class":5218},[5208,15557,15558],{"class":5232},"`Order created: ",[5208,15560,5368],{"class":5282},[5208,15562,6412],{"class":5222},[5208,15564,5352],{"class":5373},[5208,15566,6417],{"class":5222},[5208,15568,5379],{"class":5282},[5208,15570,5382],{"class":5232},[5208,15572,5385],{"class":5218},[5208,15574,15575],{"class":5210,"line":5975},[5208,15576,5261],{"emptyLinePlaceholder":5260},[5208,15578,15579],{"class":5210,"line":5995},[5208,15580,15581],{"class":5391},"    \u002F\u002F Відправка повідомлення через всі доступні канали\n",[5208,15583,15584,15586,15588,15590,15592,15594,15597],{"class":5210,"line":6023},[5208,15585,10101],{"class":5214},[5208,15587,6689],{"class":5282},[5208,15589,5352],{"class":5218},[5208,15591,10108],{"class":5222},[5208,15593,5352],{"class":5218},[5208,15595,15596],{"class":5270},"sendToAll",[5208,15598,5775],{"class":5218},[5208,15600,15601,15603],{"class":5210,"line":6029},[5208,15602,10067],{"class":5222},[5208,15604,7940],{"class":5218},[5208,15606,15607,15609,15611,15613,15615,15617,15619],{"class":5210,"line":6035},[5208,15608,10133],{"class":5232},[5208,15610,5368],{"class":5282},[5208,15612,6412],{"class":5222},[5208,15614,5352],{"class":5373},[5208,15616,6417],{"class":5222},[5208,15618,5379],{"class":5282},[5208,15620,15621],{"class":5232}," has been successfully created!`\n",[5208,15623,15624],{"class":5210,"line":6040},[5208,15625,8200],{"class":5218},[5208,15627,15628],{"class":5210,"line":6911},[5208,15629,5261],{"emptyLinePlaceholder":5260},[5208,15631,15632,15634,15636],{"class":5210,"line":6933},[5208,15633,5398],{"class":5214},[5208,15635,6358],{"class":5222},[5208,15637,5236],{"class":5218},[5208,15639,15640],{"class":5210,"line":6939},[5208,15641,5421],{"class":5218},[5208,15643,15644],{"class":5210,"line":6974},[5208,15645,5261],{"emptyLinePlaceholder":5260},[5208,15647,15648,15650,15653,15655,15657,15659,15661,15663,15666,15668,15670],{"class":5210,"line":6979},[5208,15649,5327],{"class":5282},[5208,15651,15652],{"class":5270}," shipOrder",[5208,15654,5299],{"class":5218},[5208,15656,6451],{"class":5222},[5208,15658,5311],{"class":5218},[5208,15660,5990],{"class":5286},[5208,15662,5141],{"class":5218},[5208,15664,15665],{"class":5222},"trackingNumber",[5208,15667,5311],{"class":5218},[5208,15669,7177],{"class":5286},[5208,15671,5343],{"class":5218},[5208,15673,15674,15676,15678,15680,15682,15685,15687,15689,15691,15694,15696,15698,15700,15702],{"class":5210,"line":7407},[5208,15675,6781],{"class":5222},[5208,15677,5352],{"class":5218},[5208,15679,5360],{"class":5270},[5208,15681,5299],{"class":5218},[5208,15683,15684],{"class":5232},"`Shipping order ",[5208,15686,5368],{"class":5282},[5208,15688,6451],{"class":5222},[5208,15690,5379],{"class":5282},[5208,15692,15693],{"class":5232}," with tracking: ",[5208,15695,5368],{"class":5282},[5208,15697,15665],{"class":5222},[5208,15699,5379],{"class":5282},[5208,15701,5382],{"class":5232},[5208,15703,5385],{"class":5218},[5208,15705,15706],{"class":5210,"line":7412},[5208,15707,5261],{"emptyLinePlaceholder":5260},[5208,15709,15710],{"class":5210,"line":8207},[5208,15711,15712],{"class":5391},"    \u002F\u002F Спроба відправити SMS (якщо канал доступний)\n",[5208,15714,15715,15717,15719,15721,15723,15725,15727,15730,15732,15734],{"class":5210,"line":8214},[5208,15716,5807],{"class":5214},[5208,15718,5160],{"class":5218},[5208,15720,5812],{"class":5282},[5208,15722,5352],{"class":5218},[5208,15724,10108],{"class":5222},[5208,15726,5352],{"class":5218},[5208,15728,15729],{"class":5270},"isChannelAvailable",[5208,15731,5299],{"class":5218},[5208,15733,13907],{"class":5232},[5208,15735,15736],{"class":5218},")) {\n",[5208,15738,15739,15741,15743,15745,15747,15749,15752],{"class":5210,"line":8257},[5208,15740,6844],{"class":5214},[5208,15742,6689],{"class":5282},[5208,15744,5352],{"class":5218},[5208,15746,10108],{"class":5222},[5208,15748,5352],{"class":5218},[5208,15750,15751],{"class":5270},"sendViaChannel",[5208,15753,5775],{"class":5218},[5208,15755,15756,15759],{"class":5210,"line":8270},[5208,15757,15758],{"class":5232},"        'sms'",[5208,15760,7940],{"class":5218},[5208,15762,15763,15766],{"class":5210,"line":8276},[5208,15764,15765],{"class":5232},"        'user-phone'",[5208,15767,7940],{"class":5218},[5208,15769,15770,15773,15775,15777,15779,15782,15784,15786,15788],{"class":5210,"line":8289},[5208,15771,15772],{"class":5232},"        `Your order #",[5208,15774,5368],{"class":5282},[5208,15776,6451],{"class":5222},[5208,15778,5379],{"class":5282},[5208,15780,15781],{"class":5232}," has been shipped. Tracking: ",[5208,15783,5368],{"class":5282},[5208,15785,15665],{"class":5222},[5208,15787,5379],{"class":5282},[5208,15789,8799],{"class":5232},[5208,15791,15792],{"class":5210,"line":8303},[5208,15793,15794],{"class":5218},"      );\n",[5208,15796,15797,15799,15801],{"class":5210,"line":8316},[5208,15798,5843],{"class":5218},[5208,15800,5846],{"class":5214},[5208,15802,5290],{"class":5218},[5208,15804,15805],{"class":5210,"line":8344},[5208,15806,15807],{"class":5391},"      \u002F\u002F Fallback на email\n",[5208,15809,15810,15812,15814,15816,15818,15820,15822,15824,15826,15828],{"class":5210,"line":8353},[5208,15811,6718],{"class":5214},[5208,15813,5160],{"class":5218},[5208,15815,5812],{"class":5282},[5208,15817,5352],{"class":5218},[5208,15819,10108],{"class":5222},[5208,15821,5352],{"class":5218},[5208,15823,15729],{"class":5270},[5208,15825,5299],{"class":5218},[5208,15827,13865],{"class":5232},[5208,15829,15736],{"class":5218},[5208,15831,15832,15834,15836,15838,15840,15842,15844],{"class":5210,"line":8358},[5208,15833,12126],{"class":5214},[5208,15835,6689],{"class":5282},[5208,15837,5352],{"class":5218},[5208,15839,10108],{"class":5222},[5208,15841,5352],{"class":5218},[5208,15843,15751],{"class":5270},[5208,15845,5775],{"class":5218},[5208,15847,15848,15851],{"class":5210,"line":8363},[5208,15849,15850],{"class":5232},"          'email'",[5208,15852,7940],{"class":5218},[5208,15854,15855,15858],{"class":5210,"line":11245},[5208,15856,15857],{"class":5232},"          'user@example.com'",[5208,15859,7940],{"class":5218},[5208,15861,15862,15865,15867,15869,15871,15873,15875,15877,15879],{"class":5210,"line":11273},[5208,15863,15864],{"class":5232},"          `Your order #",[5208,15866,5368],{"class":5282},[5208,15868,6451],{"class":5222},[5208,15870,5379],{"class":5282},[5208,15872,15781],{"class":5232},[5208,15874,5368],{"class":5282},[5208,15876,15665],{"class":5222},[5208,15878,5379],{"class":5282},[5208,15880,8799],{"class":5232},[5208,15882,15883],{"class":5210,"line":11279},[5208,15884,15885],{"class":5218},"        );\n",[5208,15887,15888],{"class":5210,"line":11284},[5208,15889,6763],{"class":5218},[5208,15891,15892],{"class":5210,"line":11289},[5208,15893,5869],{"class":5218},[5208,15895,15896],{"class":5210,"line":11310},[5208,15897,5421],{"class":5218},[5208,15899,15900],{"class":5210,"line":11335},[5208,15901,5427],{"class":5218},[6178,15903,15905],{"id":15904},"результати-виконання-у-різних-конфігураціях","Результати виконання у різних конфігураціях",[5135,15907,15908],{},[5150,15909,15910],{},"Конфігурація 1: Всі канали увімкнені",[5507,15912,15913,15923,15926,15937,15947,15950,15954,15958],{":cursor":5509,"title":5510},[5512,15914,15916,5434,15919],{"className":15915},[5210],[5208,15917,5519],{"className":15918},[5518],[5150,15920,15922],{"className":15921},[5523],"EMAIL_ENABLED=true SMS_ENABLED=true PUSH_ENABLED=true npm run start:dev",[5512,15924],{"className":15925},[5210],[5512,15927,15929,15932,15933],{"className":15928},[5210],[5208,15930,6126],{"className":15931},[5552,5523]," Notification service initialized with channels: ",[5208,15934,15936],{"className":15935},[6154],"email, sms, push",[5512,15938,15940,15943,15944],{"className":15939},[5210],[5208,15941,6126],{"className":15942},[5552,5523]," Orders service initialized. Available notification channels: ",[5208,15945,15936],{"className":15946},[6154],[5512,15948],{"className":15949},[5210],[5512,15951,15953],{"className":15952},[5210],"📧 Sending email to user123: Your order #1709845200000 has been successfully created!",[5512,15955,15957],{"className":15956},[5210],"📱 Sending SMS to user123: Your order #1709845200000 has been successfully created!",[5512,15959,15961],{"className":15960},[5210],"🔔 Sending push notification to user123: Your order #1709845200000 has been successfully created!",[5135,15963,15964],{},[5150,15965,15966],{},"Конфігурація 2: Тільки email",[5507,15968,15969,15979,15982,15991,16000,16003,16006,16014],{":cursor":5509,"title":5510},[5512,15970,15972,5434,15975],{"className":15971},[5210],[5208,15973,5519],{"className":15974},[5518],[5150,15976,15978],{"className":15977},[5523],"EMAIL_ENABLED=true npm run start:dev",[5512,15980],{"className":15981},[5210],[5512,15983,15985,15932,15988],{"className":15984},[5210],[5208,15986,6126],{"className":15987},[5552,5523],[5208,15989,5376],{"className":15990},[6154],[5512,15992,15994,15943,15997],{"className":15993},[5210],[5208,15995,6126],{"className":15996},[5552,5523],[5208,15998,5376],{"className":15999},[6154],[5512,16001],{"className":16002},[5210],[5512,16004,15953],{"className":16005},[5210],[5512,16007,16009,16013],{"className":16008},[5210],[5208,16010,16012],{"className":16011},[5543],"WARN"," SMS channel not available",[5512,16015,16017,16020],{"className":16016},[5210],[5208,16018,16012],{"className":16019},[5543]," Push channel not available",[5135,16022,16023],{},[5150,16024,16025],{},"Конфігурація 3: Жодного каналу",[5507,16027,16028,16037,16040,16051,16060,16063],{":cursor":5509,"title":5510},[5512,16029,16031,5434,16034],{"className":16030},[5210],[5208,16032,5519],{"className":16033},[5518],[5150,16035,5510],{"className":16036},[5523],[5512,16038],{"className":16039},[5210],[5512,16041,16043,15932,16046],{"className":16042},[5210],[5208,16044,16012],{"className":16045},[5543,5523],[5208,16047,16050],{"className":16048},[16049,6146],"text-gray-400","(none)",[5512,16052,16054,15943,16057],{"className":16053},[5210],[5208,16055,6126],{"className":16056},[5552,5523],[5208,16058,16050],{"className":16059},[16049,6146],[5512,16061],{"className":16062},[5210],[5512,16064,16066,16069],{"className":16065},[5210],[5208,16067,16012],{"className":16068},[5543]," No notification channels available, messages will be skipped",[6526,16071,16072,16073,16076],{},"Цей патерн особливо корисний для ",[5150,16074,16075],{},"модульних систем",", де різні розгортання (staging, production, development) мають різні набори підключених функцій. Опціональні залежності дозволяють одному і тому ж коду працювати у всіх середовищах без жорстко закодованих умов.",[5128,16078],{},[5084,16080,16082],{"id":16081},"best-practices-документування-та-проєктування-опціональних-залежностей","Best Practices: документування та проєктування опціональних залежностей",[5135,16084,16085],{},"Опціональні залежності вносять додаткову складність у код — вони вимагають перевірок, обробки відсутності та чітких правил поведінки. Дотримання best practices допоможе зробити ваш код більш передбачуваним та підтримуваним.",[6178,16087,16089],{"id":16088},"_1-документуйте-поведінку-при-відсутності-залежності","1. Документуйте поведінку при відсутності залежності",[5135,16091,16092],{},"Кожна опціональна залежність має супроводжуватися документацією, що пояснює:",[5089,16094,16095,16098,16101],{},[5092,16096,16097],{},"Що станеться, якщо залежність відсутня",[5092,16099,16100],{},"Чи є альтернативна поведінка (fallback)",[5092,16102,16103],{},"Які функції будуть недоступні",[5199,16105,16107],{"className":5201,"code":16106,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional } from '@nestjs\u002Fcommon';\nimport { CacheManager } from '.\u002Fcache.manager';\n\n\u002F**\n * Сервіс роботи з товарами.\n * \n * @remarks\n * Цей сервіс підтримує опціональне кешування через CacheManager.\n * Якщо кеш недоступний, сервіс працюватиме з прямим доступом до БД,\n * що може призвести до зниження продуктивності при великому навантаженні.\n * \n * @example\n * \u002F\u002F З кешуванням (продакшн)\n * providers: [ProductsService, CacheManager]\n * \n * @example\n * \u002F\u002F Без кешування (розробка\u002Fтести)\n * providers: [ProductsService]\n *\u002F\n@Injectable()\nexport class ProductsService {\n  \u002F**\n   * @param cache - Опціональний менеджер кешу.\n   *   Якщо не надано, всі запити йтимуть напряму в БД.\n   *\u002F\n  constructor(\n    @Optional() private readonly cache?: CacheManager\n  ) {}\n\n  \u002F\u002F ...\n}\n",[5099,16108,16109,16129,16145,16149,16154,16159,16164,16172,16177,16182,16187,16191,16198,16206,16211,16215,16221,16228,16233,16238,16246,16256,16260,16273,16278,16282,16288,16307,16311,16315,16320],{"__ignoreMap":5204},[5208,16110,16111,16113,16115,16117,16119,16121,16123,16125,16127],{"class":5210,"line":5211},[5208,16112,5215],{"class":5214},[5208,16114,5219],{"class":5218},[5208,16116,5223],{"class":5222},[5208,16118,5141],{"class":5218},[5208,16120,5722],{"class":5222},[5208,16122,5226],{"class":5218},[5208,16124,5229],{"class":5214},[5208,16126,5233],{"class":5232},[5208,16128,5236],{"class":5218},[5208,16130,16131,16133,16135,16137,16139,16141,16143],{"class":5210,"line":5239},[5208,16132,5215],{"class":5214},[5208,16134,5219],{"class":5218},[5208,16136,6575],{"class":5222},[5208,16138,5226],{"class":5218},[5208,16140,5229],{"class":5214},[5208,16142,6582],{"class":5232},[5208,16144,5236],{"class":5218},[5208,16146,16147],{"class":5210,"line":5257},[5208,16148,5261],{"emptyLinePlaceholder":5260},[5208,16150,16151],{"class":5210,"line":5264},[5208,16152,16153],{"class":5391},"\u002F**\n",[5208,16155,16156],{"class":5210,"line":5276},[5208,16157,16158],{"class":5391}," * Сервіс роботи з товарами.\n",[5208,16160,16161],{"class":5210,"line":5293},[5208,16162,16163],{"class":5391}," * \n",[5208,16165,16166,16169],{"class":5210,"line":5319},[5208,16167,16168],{"class":5391}," * ",[5208,16170,16171],{"class":5282},"@remarks\n",[5208,16173,16174],{"class":5210,"line":5324},[5208,16175,16176],{"class":5391}," * Цей сервіс підтримує опціональне кешування через CacheManager.\n",[5208,16178,16179],{"class":5210,"line":5346},[5208,16180,16181],{"class":5391}," * Якщо кеш недоступний, сервіс працюватиме з прямим доступом до БД,\n",[5208,16183,16184],{"class":5210,"line":5388},[5208,16185,16186],{"class":5391}," * що може призвести до зниження продуктивності при великому навантаженні.\n",[5208,16188,16189],{"class":5210,"line":5395},[5208,16190,16163],{"class":5391},[5208,16192,16193,16195],{"class":5210,"line":5418},[5208,16194,16168],{"class":5391},[5208,16196,16197],{"class":5282},"@example\n",[5208,16199,16200,16203],{"class":5210,"line":5424},[5208,16201,16202],{"class":5391}," *",[5208,16204,16205],{"class":5391}," \u002F\u002F З кешуванням (продакшн)\n",[5208,16207,16208],{"class":5210,"line":5872},[5208,16209,16210],{"class":5391}," * providers: [ProductsService, CacheManager]\n",[5208,16212,16213],{"class":5210,"line":5877},[5208,16214,16163],{"class":5391},[5208,16216,16217,16219],{"class":5210,"line":5882},[5208,16218,16168],{"class":5391},[5208,16220,16197],{"class":5282},[5208,16222,16223,16225],{"class":5210,"line":5899},[5208,16224,16202],{"class":5391},[5208,16226,16227],{"class":5391}," \u002F\u002F Без кешування (розробка\u002Fтести)\n",[5208,16229,16230],{"class":5210,"line":5905},[5208,16231,16232],{"class":5391}," * providers: [ProductsService]\n",[5208,16234,16235],{"class":5210,"line":5937},[5208,16236,16237],{"class":5391}," *\u002F\n",[5208,16239,16240,16242,16244],{"class":5210,"line":5942},[5208,16241,5267],{"class":5218},[5208,16243,5223],{"class":5270},[5208,16245,5273],{"class":5218},[5208,16247,16248,16250,16252,16254],{"class":5210,"line":5948},[5208,16249,5279],{"class":5214},[5208,16251,5283],{"class":5282},[5208,16253,6605],{"class":5286},[5208,16255,5290],{"class":5218},[5208,16257,16258],{"class":5210,"line":5965},[5208,16259,14011],{"class":5391},[5208,16261,16262,16265,16268,16270],{"class":5210,"line":5970},[5208,16263,16264],{"class":5391},"   * ",[5208,16266,16267],{"class":5282},"@param",[5208,16269,6624],{"class":5222},[5208,16271,16272],{"class":5391}," - Опціональний менеджер кешу.\n",[5208,16274,16275],{"class":5210,"line":5975},[5208,16276,16277],{"class":5391},"   *   Якщо не надано, всі запити йтимуть напряму в БД.\n",[5208,16279,16280],{"class":5210,"line":5995},[5208,16281,14021],{"class":5391},[5208,16283,16284,16286],{"class":5210,"line":6023},[5208,16285,5296],{"class":5282},[5208,16287,5775],{"class":5218},[5208,16289,16290,16292,16294,16296,16298,16300,16302,16304],{"class":5210,"line":6029},[5208,16291,5780],{"class":5218},[5208,16293,5722],{"class":5270},[5208,16295,5785],{"class":5218},[5208,16297,5302],{"class":5282},[5208,16299,5305],{"class":5282},[5208,16301,6624],{"class":5222},[5208,16303,5794],{"class":5218},[5208,16305,16306],{"class":5286},"CacheManager\n",[5208,16308,16309],{"class":5210,"line":6035},[5208,16310,9964],{"class":5218},[5208,16312,16313],{"class":5210,"line":6040},[5208,16314,5261],{"emptyLinePlaceholder":5260},[5208,16316,16317],{"class":5210,"line":6911},[5208,16318,16319],{"class":5391},"  \u002F\u002F ...\n",[5208,16321,16322],{"class":5210,"line":6933},[5208,16323,5427],{"class":5218},[6178,16325,16327],{"id":16326},"_2-використовуйте-єдиний-стиль-перевірки","2. Використовуйте єдиний стиль перевірки",[5135,16329,16330,16331,16333,16334,16336],{},"Обирайте єдиний патерн для всього проєкту: або optional chaining (",[5099,16332,5914],{},"), або явні перевірки ",[5099,16335,6538],{},", або no-op stubs. Змішування стилів погіршує читабельність:",[5199,16338,16340],{"className":5201,"code":16339,"language":5203,"meta":5204,"style":5204},"\u002F\u002F ❌ ПОГАНО: різні стилі перевірки\nclass BadExample {\n  constructor(\n    @Optional() private logger?: Logger,\n    @Optional() private cache?: CacheManager\n  ) {}\n\n  method1() {\n    \u002F\u002F Optional chaining\n    this.logger?.log('Message');\n  }\n\n  method2() {\n    \u002F\u002F Явна перевірка\n    if (this.cache) {\n      this.cache.set('key', 'value');\n    }\n  }\n}\n\n\u002F\u002F ✅ ДОБРЕ: єдиний стиль (optional chaining)\nclass GoodExample {\n  constructor(\n    @Optional() private logger?: Logger,\n    @Optional() private cache?: CacheManager\n  ) {}\n\n  method1() {\n    this.logger?.log('Message');\n  }\n\n  method2() {\n    this.cache?.set('key', 'value');\n  }\n}\n",[5099,16341,16342,16347,16357,16363,16381,16397,16401,16405,16412,16417,16436,16440,16444,16451,16456,16470,16494,16498,16502,16506,16510,16515,16524,16530,16548,16564,16568,16572,16578,16596,16600,16604,16610,16632,16636],{"__ignoreMap":5204},[5208,16343,16344],{"class":5210,"line":5211},[5208,16345,16346],{"class":5391},"\u002F\u002F ❌ ПОГАНО: різні стилі перевірки\n",[5208,16348,16349,16352,16355],{"class":5210,"line":5239},[5208,16350,16351],{"class":5282},"class",[5208,16353,16354],{"class":5286}," BadExample",[5208,16356,5290],{"class":5218},[5208,16358,16359,16361],{"class":5210,"line":5257},[5208,16360,5296],{"class":5282},[5208,16362,5775],{"class":5218},[5208,16364,16365,16367,16369,16371,16373,16375,16377,16379],{"class":5210,"line":5264},[5208,16366,5780],{"class":5218},[5208,16368,5722],{"class":5270},[5208,16370,5785],{"class":5218},[5208,16372,5302],{"class":5282},[5208,16374,5308],{"class":5222},[5208,16376,5794],{"class":5218},[5208,16378,9044],{"class":5286},[5208,16380,7940],{"class":5218},[5208,16382,16383,16385,16387,16389,16391,16393,16395],{"class":5210,"line":5276},[5208,16384,5780],{"class":5218},[5208,16386,5722],{"class":5270},[5208,16388,5785],{"class":5218},[5208,16390,5302],{"class":5282},[5208,16392,6624],{"class":5222},[5208,16394,5794],{"class":5218},[5208,16396,16306],{"class":5286},[5208,16398,16399],{"class":5210,"line":5293},[5208,16400,9964],{"class":5218},[5208,16402,16403],{"class":5210,"line":5319},[5208,16404,5261],{"emptyLinePlaceholder":5260},[5208,16406,16407,16410],{"class":5210,"line":5324},[5208,16408,16409],{"class":5270},"  method1",[5208,16411,8821],{"class":5218},[5208,16413,16414],{"class":5210,"line":5346},[5208,16415,16416],{"class":5391},"    \u002F\u002F Optional chaining\n",[5208,16418,16419,16421,16423,16425,16427,16429,16431,16434],{"class":5210,"line":5388},[5208,16420,5349],{"class":5282},[5208,16422,5352],{"class":5218},[5208,16424,5355],{"class":5222},[5208,16426,5914],{"class":5218},[5208,16428,5360],{"class":5270},[5208,16430,5299],{"class":5218},[5208,16432,16433],{"class":5232},"'Message'",[5208,16435,5385],{"class":5218},[5208,16437,16438],{"class":5210,"line":5395},[5208,16439,5421],{"class":5218},[5208,16441,16442],{"class":5210,"line":5418},[5208,16443,5261],{"emptyLinePlaceholder":5260},[5208,16445,16446,16449],{"class":5210,"line":5424},[5208,16447,16448],{"class":5270},"  method2",[5208,16450,8821],{"class":5218},[5208,16452,16453],{"class":5210,"line":5872},[5208,16454,16455],{"class":5391},"    \u002F\u002F Явна перевірка\n",[5208,16457,16458,16460,16462,16464,16466,16468],{"class":5210,"line":5877},[5208,16459,5807],{"class":5214},[5208,16461,5160],{"class":5218},[5208,16463,5812],{"class":5282},[5208,16465,5352],{"class":5218},[5208,16467,6670],{"class":5222},[5208,16469,5343],{"class":5218},[5208,16471,16472,16474,16476,16478,16480,16482,16484,16487,16489,16492],{"class":5210,"line":5882},[5208,16473,5823],{"class":5282},[5208,16475,5352],{"class":5218},[5208,16477,6670],{"class":5222},[5208,16479,5352],{"class":5218},[5208,16481,6855],{"class":5270},[5208,16483,5299],{"class":5218},[5208,16485,16486],{"class":5232},"'key'",[5208,16488,5141],{"class":5218},[5208,16490,16491],{"class":5232},"'value'",[5208,16493,5385],{"class":5218},[5208,16495,16496],{"class":5210,"line":5899},[5208,16497,5869],{"class":5218},[5208,16499,16500],{"class":5210,"line":5905},[5208,16501,5421],{"class":5218},[5208,16503,16504],{"class":5210,"line":5937},[5208,16505,5427],{"class":5218},[5208,16507,16508],{"class":5210,"line":5942},[5208,16509,5261],{"emptyLinePlaceholder":5260},[5208,16511,16512],{"class":5210,"line":5948},[5208,16513,16514],{"class":5391},"\u002F\u002F ✅ ДОБРЕ: єдиний стиль (optional chaining)\n",[5208,16516,16517,16519,16522],{"class":5210,"line":5965},[5208,16518,16351],{"class":5282},[5208,16520,16521],{"class":5286}," GoodExample",[5208,16523,5290],{"class":5218},[5208,16525,16526,16528],{"class":5210,"line":5970},[5208,16527,5296],{"class":5282},[5208,16529,5775],{"class":5218},[5208,16531,16532,16534,16536,16538,16540,16542,16544,16546],{"class":5210,"line":5975},[5208,16533,5780],{"class":5218},[5208,16535,5722],{"class":5270},[5208,16537,5785],{"class":5218},[5208,16539,5302],{"class":5282},[5208,16541,5308],{"class":5222},[5208,16543,5794],{"class":5218},[5208,16545,9044],{"class":5286},[5208,16547,7940],{"class":5218},[5208,16549,16550,16552,16554,16556,16558,16560,16562],{"class":5210,"line":5995},[5208,16551,5780],{"class":5218},[5208,16553,5722],{"class":5270},[5208,16555,5785],{"class":5218},[5208,16557,5302],{"class":5282},[5208,16559,6624],{"class":5222},[5208,16561,5794],{"class":5218},[5208,16563,16306],{"class":5286},[5208,16565,16566],{"class":5210,"line":6023},[5208,16567,9964],{"class":5218},[5208,16569,16570],{"class":5210,"line":6029},[5208,16571,5261],{"emptyLinePlaceholder":5260},[5208,16573,16574,16576],{"class":5210,"line":6035},[5208,16575,16409],{"class":5270},[5208,16577,8821],{"class":5218},[5208,16579,16580,16582,16584,16586,16588,16590,16592,16594],{"class":5210,"line":6040},[5208,16581,5349],{"class":5282},[5208,16583,5352],{"class":5218},[5208,16585,5355],{"class":5222},[5208,16587,5914],{"class":5218},[5208,16589,5360],{"class":5270},[5208,16591,5299],{"class":5218},[5208,16593,16433],{"class":5232},[5208,16595,5385],{"class":5218},[5208,16597,16598],{"class":5210,"line":6911},[5208,16599,5421],{"class":5218},[5208,16601,16602],{"class":5210,"line":6933},[5208,16603,5261],{"emptyLinePlaceholder":5260},[5208,16605,16606,16608],{"class":5210,"line":6939},[5208,16607,16448],{"class":5270},[5208,16609,8821],{"class":5218},[5208,16611,16612,16614,16616,16618,16620,16622,16624,16626,16628,16630],{"class":5210,"line":6974},[5208,16613,5349],{"class":5282},[5208,16615,5352],{"class":5218},[5208,16617,6670],{"class":5222},[5208,16619,5914],{"class":5218},[5208,16621,6855],{"class":5270},[5208,16623,5299],{"class":5218},[5208,16625,16486],{"class":5232},[5208,16627,5141],{"class":5218},[5208,16629,16491],{"class":5232},[5208,16631,5385],{"class":5218},[5208,16633,16634],{"class":5210,"line":6979},[5208,16635,5421],{"class":5218},[5208,16637,16638],{"class":5210,"line":7407},[5208,16639,5427],{"class":5218},[6178,16641,16643],{"id":16642},"_3-надавайте-значення-за-замовчуванням-там-де-це-доречно","3. Надавайте значення за замовчуванням там, де це доречно",[5135,16645,16646,16647,5197],{},"Для конфігураційних об'єктів краще надати розумні значення за замовчуванням, ніж залишати ",[5099,16648,5665],{},[5199,16650,16652],{"className":5201,"code":16651,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional, Inject } from '@nestjs\u002Fcommon';\n\ninterface RateLimitConfig {\n  maxRequests: number;\n  windowMs: number;\n  message: string;\n}\n\nconst DEFAULT_RATE_LIMIT: RateLimitConfig = {\n  maxRequests: 100,\n  windowMs: 60000,  \u002F\u002F 1 хвилина\n  message: 'Too many requests, please try again later.'\n};\n\n@Injectable()\nexport class RateLimiter {\n  private readonly config: RateLimitConfig;\n\n  constructor(\n    @Optional()\n    @Inject('RATE_LIMIT_CONFIG')\n    providedConfig?: Partial\u003CRateLimitConfig>\n  ) {\n    \u002F\u002F Злиття з значеннями за замовчуванням\n    this.config = { ...DEFAULT_RATE_LIMIT, ...providedConfig };\n  }\n\n  isAllowed(clientId: string): boolean {\n    \u002F\u002F Логіка перевірки ліміту на основі this.config\n    return true;\n  }\n}\n",[5099,16653,16654,16678,16682,16691,16702,16713,16724,16728,16732,16746,16756,16770,16778,16782,16786,16794,16805,16819,16823,16829,16837,16850,16864,16868,16873,16893,16897,16901,16921,16926,16934,16938],{"__ignoreMap":5204},[5208,16655,16656,16658,16660,16662,16664,16666,16668,16670,16672,16674,16676],{"class":5210,"line":5211},[5208,16657,5215],{"class":5214},[5208,16659,5219],{"class":5218},[5208,16661,5223],{"class":5222},[5208,16663,5141],{"class":5218},[5208,16665,5722],{"class":5222},[5208,16667,5141],{"class":5218},[5208,16669,7850],{"class":5222},[5208,16671,5226],{"class":5218},[5208,16673,5229],{"class":5214},[5208,16675,5233],{"class":5232},[5208,16677,5236],{"class":5218},[5208,16679,16680],{"class":5210,"line":5239},[5208,16681,5261],{"emptyLinePlaceholder":5260},[5208,16683,16684,16686,16689],{"class":5210,"line":5257},[5208,16685,7867],{"class":5282},[5208,16687,16688],{"class":5286}," RateLimitConfig",[5208,16690,5290],{"class":5218},[5208,16692,16693,16696,16698,16700],{"class":5210,"line":5264},[5208,16694,16695],{"class":5222},"  maxRequests",[5208,16697,5311],{"class":5218},[5208,16699,5990],{"class":5286},[5208,16701,5236],{"class":5218},[5208,16703,16704,16707,16709,16711],{"class":5210,"line":5276},[5208,16705,16706],{"class":5222},"  windowMs",[5208,16708,5311],{"class":5218},[5208,16710,5990],{"class":5286},[5208,16712,5236],{"class":5218},[5208,16714,16715,16718,16720,16722],{"class":5210,"line":5293},[5208,16716,16717],{"class":5222},"  message",[5208,16719,5311],{"class":5218},[5208,16721,7177],{"class":5286},[5208,16723,5236],{"class":5218},[5208,16725,16726],{"class":5210,"line":5319},[5208,16727,5427],{"class":5218},[5208,16729,16730],{"class":5210,"line":5324},[5208,16731,5261],{"emptyLinePlaceholder":5260},[5208,16733,16734,16736,16739,16741,16744],{"class":5210,"line":5346},[5208,16735,7918],{"class":5282},[5208,16737,16738],{"class":6357}," DEFAULT_RATE_LIMIT",[5208,16740,5311],{"class":5218},[5208,16742,16743],{"class":5286},"RateLimitConfig",[5208,16745,7929],{"class":5218},[5208,16747,16748,16751,16754],{"class":5210,"line":5388},[5208,16749,16750],{"class":5222},"  maxRequests:",[5208,16752,16753],{"class":5406}," 100",[5208,16755,7940],{"class":5218},[5208,16757,16758,16761,16764,16767],{"class":5210,"line":5395},[5208,16759,16760],{"class":5222},"  windowMs:",[5208,16762,16763],{"class":5406}," 60000",[5208,16765,16766],{"class":5218},",  ",[5208,16768,16769],{"class":5391},"\u002F\u002F 1 хвилина\n",[5208,16771,16772,16775],{"class":5210,"line":5418},[5208,16773,16774],{"class":5222},"  message:",[5208,16776,16777],{"class":5232}," 'Too many requests, please try again later.'\n",[5208,16779,16780],{"class":5210,"line":5424},[5208,16781,7963],{"class":5218},[5208,16783,16784],{"class":5210,"line":5872},[5208,16785,5261],{"emptyLinePlaceholder":5260},[5208,16787,16788,16790,16792],{"class":5210,"line":5877},[5208,16789,5267],{"class":5218},[5208,16791,5223],{"class":5270},[5208,16793,5273],{"class":5218},[5208,16795,16796,16798,16800,16803],{"class":5210,"line":5882},[5208,16797,5279],{"class":5214},[5208,16799,5283],{"class":5282},[5208,16801,16802],{"class":5286}," RateLimiter",[5208,16804,5290],{"class":5218},[5208,16806,16807,16809,16811,16813,16815,16817],{"class":5210,"line":5899},[5208,16808,6914],{"class":5282},[5208,16810,5305],{"class":5282},[5208,16812,7995],{"class":5222},[5208,16814,5311],{"class":5218},[5208,16816,16743],{"class":5286},[5208,16818,5236],{"class":5218},[5208,16820,16821],{"class":5210,"line":5905},[5208,16822,5261],{"emptyLinePlaceholder":5260},[5208,16824,16825,16827],{"class":5210,"line":5937},[5208,16826,5296],{"class":5282},[5208,16828,5775],{"class":5218},[5208,16830,16831,16833,16835],{"class":5210,"line":5942},[5208,16832,5780],{"class":5218},[5208,16834,5722],{"class":5270},[5208,16836,5273],{"class":5218},[5208,16838,16839,16841,16843,16845,16848],{"class":5210,"line":5948},[5208,16840,5780],{"class":5218},[5208,16842,7850],{"class":5270},[5208,16844,5299],{"class":5218},[5208,16846,16847],{"class":5232},"'RATE_LIMIT_CONFIG'",[5208,16849,8033],{"class":5218},[5208,16851,16852,16854,16856,16858,16860,16862],{"class":5210,"line":5965},[5208,16853,8038],{"class":5222},[5208,16855,5794],{"class":5218},[5208,16857,8524],{"class":5286},[5208,16859,8527],{"class":5218},[5208,16861,16743],{"class":5286},[5208,16863,8680],{"class":5218},[5208,16865,16866],{"class":5210,"line":5970},[5208,16867,5802],{"class":5218},[5208,16869,16870],{"class":5210,"line":5975},[5208,16871,16872],{"class":5391},"    \u002F\u002F Злиття з значеннями за замовчуванням\n",[5208,16874,16875,16877,16879,16881,16884,16887,16889,16891],{"class":5210,"line":5995},[5208,16876,5349],{"class":5282},[5208,16878,5352],{"class":5218},[5208,16880,8061],{"class":5222},[5208,16882,16883],{"class":5218}," = { ...",[5208,16885,16886],{"class":6357},"DEFAULT_RATE_LIMIT",[5208,16888,5410],{"class":5218},[5208,16890,8066],{"class":5222},[5208,16892,5415],{"class":5218},[5208,16894,16895],{"class":5210,"line":6023},[5208,16896,5421],{"class":5218},[5208,16898,16899],{"class":5210,"line":6029},[5208,16900,5261],{"emptyLinePlaceholder":5260},[5208,16902,16903,16906,16908,16911,16913,16915,16917,16919],{"class":5210,"line":6035},[5208,16904,16905],{"class":5270},"  isAllowed",[5208,16907,5299],{"class":5218},[5208,16909,16910],{"class":5222},"clientId",[5208,16912,5311],{"class":5218},[5208,16914,7177],{"class":5286},[5208,16916,7462],{"class":5218},[5208,16918,10820],{"class":5286},[5208,16920,5290],{"class":5218},[5208,16922,16923],{"class":5210,"line":6040},[5208,16924,16925],{"class":5391},"    \u002F\u002F Логіка перевірки ліміту на основі this.config\n",[5208,16927,16928,16930,16932],{"class":5210,"line":6911},[5208,16929,5398],{"class":5214},[5208,16931,9247],{"class":5282},[5208,16933,5236],{"class":5218},[5208,16935,16936],{"class":5210,"line":6933},[5208,16937,5421],{"class":5218},[5208,16939,16940],{"class":5210,"line":6939},[5208,16941,5427],{"class":5218},[6178,16943,16945],{"id":16944},"_4-логуйте-факт-відсутності-залежності","4. Логуйте факт відсутності залежності",[5135,16947,16948],{},"При ініціалізації сервісу з опціональними залежностями корисно логувати інформацію про те, які залежності були знайдені, а які ні:",[5199,16950,16952],{"className":5201,"code":16951,"language":5203,"meta":5204,"style":5204},"import { Injectable, Optional } from '@nestjs\u002Fcommon';\nimport { Logger } from '@nestjs\u002Fcommon';\n\n@Injectable()\nexport class ReportGenerator {\n  private readonly logger = new Logger(ReportGenerator.name);\n\n  constructor(\n    @Optional() private readonly pdfService?: PdfService,\n    @Optional() private readonly excelService?: ExcelService,\n    @Optional() private readonly csvService?: CsvService\n  ) {\n    const available: string[] = [];\n    const unavailable: string[] = [];\n\n    if (this.pdfService) available.push('PDF');\n    else unavailable.push('PDF');\n\n    if (this.excelService) available.push('Excel');\n    else unavailable.push('Excel');\n\n    if (this.csvService) available.push('CSV');\n    else unavailable.push('CSV');\n\n    this.logger.log(`Report formats available: ${available.join(', ')}`);\n    if (unavailable.length > 0) {\n      this.logger.warn(`Report formats unavailable: ${unavailable.join(', ')}`);\n    }\n  }\n\n  async generateReport(format: 'pdf' | 'excel' | 'csv', data: any) {\n    switch (format) {\n      case 'pdf':\n        if (!this.pdfService) {\n          throw new Error('PDF generation not available');\n        }\n        return this.pdfService.generate(data);\n\n      case 'excel':\n        if (!this.excelService) {\n          throw new Error('Excel generation not available');\n        }\n        return this.excelService.generate(data);\n\n      case 'csv':\n        if (!this.csvService) {\n          throw new Error('CSV generation not available');\n        }\n        return this.csvService.generate(data);\n    }\n  }\n}\n",[5099,16953,16954,16974,16990,16994,17002,17013,17040,17044,17050,17072,17094,17114,17118,17131,17144,17148,17177,17194,17198,17226,17242,17246,17274,17290,17294,17331,17353,17390,17394,17398,17402,17440,17450,17459,17473,17489,17493,17514,17518,17527,17541,17556,17560,17580,17584,17593,17607,17622,17626,17646,17650,17654],{"__ignoreMap":5204},[5208,16955,16956,16958,16960,16962,16964,16966,16968,16970,16972],{"class":5210,"line":5211},[5208,16957,5215],{"class":5214},[5208,16959,5219],{"class":5218},[5208,16961,5223],{"class":5222},[5208,16963,5141],{"class":5218},[5208,16965,5722],{"class":5222},[5208,16967,5226],{"class":5218},[5208,16969,5229],{"class":5214},[5208,16971,5233],{"class":5232},[5208,16973,5236],{"class":5218},[5208,16975,16976,16978,16980,16982,16984,16986,16988],{"class":5210,"line":5239},[5208,16977,5215],{"class":5214},[5208,16979,5219],{"class":5218},[5208,16981,9044],{"class":5222},[5208,16983,5226],{"class":5218},[5208,16985,5229],{"class":5214},[5208,16987,5233],{"class":5232},[5208,16989,5236],{"class":5218},[5208,16991,16992],{"class":5210,"line":5257},[5208,16993,5261],{"emptyLinePlaceholder":5260},[5208,16995,16996,16998,17000],{"class":5210,"line":5264},[5208,16997,5267],{"class":5218},[5208,16999,5223],{"class":5270},[5208,17001,5273],{"class":5218},[5208,17003,17004,17006,17008,17011],{"class":5210,"line":5276},[5208,17005,5279],{"class":5214},[5208,17007,5283],{"class":5282},[5208,17009,17010],{"class":5286}," ReportGenerator",[5208,17012,5290],{"class":5218},[5208,17014,17015,17017,17019,17021,17023,17025,17028,17030,17033,17035,17038],{"class":5210,"line":5293},[5208,17016,6914],{"class":5282},[5208,17018,5305],{"class":5282},[5208,17020,5308],{"class":5222},[5208,17022,6683],{"class":5218},[5208,17024,7698],{"class":5282},[5208,17026,17027],{"class":5270}," Logger",[5208,17029,5299],{"class":5218},[5208,17031,17032],{"class":5222},"ReportGenerator",[5208,17034,5352],{"class":5218},[5208,17036,17037],{"class":5222},"name",[5208,17039,5385],{"class":5218},[5208,17041,17042],{"class":5210,"line":5319},[5208,17043,5261],{"emptyLinePlaceholder":5260},[5208,17045,17046,17048],{"class":5210,"line":5324},[5208,17047,5296],{"class":5282},[5208,17049,5775],{"class":5218},[5208,17051,17052,17054,17056,17058,17060,17062,17065,17067,17070],{"class":5210,"line":5346},[5208,17053,5780],{"class":5218},[5208,17055,5722],{"class":5270},[5208,17057,5785],{"class":5218},[5208,17059,5302],{"class":5282},[5208,17061,5305],{"class":5282},[5208,17063,17064],{"class":5222}," pdfService",[5208,17066,5794],{"class":5218},[5208,17068,17069],{"class":5286},"PdfService",[5208,17071,7940],{"class":5218},[5208,17073,17074,17076,17078,17080,17082,17084,17087,17089,17092],{"class":5210,"line":5388},[5208,17075,5780],{"class":5218},[5208,17077,5722],{"class":5270},[5208,17079,5785],{"class":5218},[5208,17081,5302],{"class":5282},[5208,17083,5305],{"class":5282},[5208,17085,17086],{"class":5222}," excelService",[5208,17088,5794],{"class":5218},[5208,17090,17091],{"class":5286},"ExcelService",[5208,17093,7940],{"class":5218},[5208,17095,17096,17098,17100,17102,17104,17106,17109,17111],{"class":5210,"line":5395},[5208,17097,5780],{"class":5218},[5208,17099,5722],{"class":5270},[5208,17101,5785],{"class":5218},[5208,17103,5302],{"class":5282},[5208,17105,5305],{"class":5282},[5208,17107,17108],{"class":5222}," 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Викинути помилку?\n      throw new Error('Database not available');\n    }\n    return this.db.query('SELECT * FROM users');\n  }\n}\n\n\u002F\u002F ✅ ДОБРЕ: база даних — обов'язкова залежність\n@Injectable()\nexport class UsersRepository {\n  constructor(private readonly db: DataSource) {}\n\n  async findAll() {\n    \u002F\u002F Гарантовано працює — db завжди доступна\n    return this.db.query('SELECT * FROM users');\n  }\n}\n",[5099,17672,17673,17678,17686,17696,17716,17720,17729,17744,17749,17764,17768,17790,17794,17798,17802,17807,17815,17825,17843,17847,17855,17860,17880,17884],{"__ignoreMap":5204},[5208,17674,17675],{"class":5210,"line":5211},[5208,17676,17677],{"class":5391},"\u002F\u002F ❌ ПОГАНО: база даних не може бути опціональною для репозиторію\n",[5208,17679,17680,17682,17684],{"class":5210,"line":5239},[5208,17681,5267],{"class":5218},[5208,17683,5223],{"class":5270},[5208,17685,5273],{"class":5218},[5208,17687,17688,17690,17692,17694],{"class":5210,"line":5257},[5208,17689,5279],{"class":5214},[5208,17691,5283],{"class":5282},[5208,17693,9468],{"class":5286},[5208,17695,5290],{"class":5218},[5208,17697,17698,17700,17702,17704,17706,17708,17710,17712,17714],{"class":5210,"line":5264},[5208,17699,5296],{"class":5282},[5208,17701,6266],{"class":5218},[5208,17703,5722],{"class":5270},[5208,17705,5785],{"class":5218},[5208,17707,5302],{"class":5282},[5208,17709,10297],{"class":5222},[5208,17711,5794],{"class":5218},[5208,17713,10302],{"class":5286},[5208,17715,5316],{"class":5218},[5208,17717,17718],{"class":5210,"line":5276},[5208,17719,5261],{"emptyLinePlaceholder":5260},[5208,17721,17722,17724,17727],{"class":5210,"line":5293},[5208,17723,5327],{"class":5282},[5208,17725,17726],{"class":5270}," findAll",[5208,17728,8821],{"class":5218},[5208,17730,17731,17733,17735,17737,17739,17742],{"class":5210,"line":5319},[5208,17732,5807],{"class":5214},[5208,17734,11162],{"class":5218},[5208,17736,5812],{"class":5282},[5208,17738,5352],{"class":5218},[5208,17740,17741],{"class":5222},"db",[5208,17743,5343],{"class":5218},[5208,17745,17746],{"class":5210,"line":5324},[5208,17747,17748],{"class":5391},"      \u002F\u002F Що повернути? Пустий масив? Викинути помилку?\n",[5208,17750,17751,17753,17755,17757,17759,17762],{"class":5210,"line":5346},[5208,17752,7341],{"class":5214},[5208,17754,14906],{"class":5282},[5208,17756,14909],{"class":5270},[5208,17758,5299],{"class":5218},[5208,17760,17761],{"class":5232},"'Database not available'",[5208,17763,5385],{"class":5218},[5208,17765,17766],{"class":5210,"line":5388},[5208,17767,5869],{"class":5218},[5208,17769,17770,17772,17774,17776,17778,17780,17783,17785,17788],{"class":5210,"line":5395},[5208,17771,5398],{"class":5214},[5208,17773,6689],{"class":5282},[5208,17775,5352],{"class":5218},[5208,17777,17741],{"class":5222},[5208,17779,5352],{"class":5218},[5208,17781,17782],{"class":5270},"query",[5208,17784,5299],{"class":5218},[5208,17786,17787],{"class":5232},"'SELECT * FROM users'",[5208,17789,5385],{"class":5218},[5208,17791,17792],{"class":5210,"line":5418},[5208,17793,5421],{"class":5218},[5208,17795,17796],{"class":5210,"line":5424},[5208,17797,5427],{"class":5218},[5208,17799,17800],{"class":5210,"line":5872},[5208,17801,5261],{"emptyLinePlaceholder":5260},[5208,17803,17804],{"class":5210,"line":5877},[5208,17805,17806],{"class":5391},"\u002F\u002F ✅ ДОБРЕ: база даних — обов'язкова залежність\n",[5208,17808,17809,17811,17813],{"class":5210,"line":5882},[5208,17810,5267],{"class":5218},[5208,17812,5223],{"class":5270},[5208,17814,5273],{"class":5218},[5208,17816,17817,17819,17821,17823],{"class":5210,"line":5899},[5208,17818,5279],{"class":5214},[5208,17820,5283],{"class":5282},[5208,17822,9468],{"class":5286},[5208,17824,5290],{"class":5218},[5208,17826,17827,17829,17831,17833,17835,17837,17839,17841],{"class":5210,"line":5905},[5208,17828,5296],{"class":5282},[5208,17830,5299],{"class":5218},[5208,17832,5302],{"class":5282},[5208,17834,5305],{"class":5282},[5208,17836,10297],{"class":5222},[5208,17838,5311],{"class":5218},[5208,17840,10302],{"class":5286},[5208,17842,5316],{"class":5218},[5208,17844,17845],{"class":5210,"line":5937},[5208,17846,5261],{"emptyLinePlaceholder":5260},[5208,17848,17849,17851,17853],{"class":5210,"line":5942},[5208,17850,5327],{"class":5282},[5208,17852,17726],{"class":5270},[5208,17854,8821],{"class":5218},[5208,17856,17857],{"class":5210,"line":5948},[5208,17858,17859],{"class":5391},"    \u002F\u002F Гарантовано працює — db завжди доступна\n",[5208,17861,17862,17864,17866,17868,17870,17872,17874,17876,17878],{"class":5210,"line":5965},[5208,17863,5398],{"class":5214},[5208,17865,6689],{"class":5282},[5208,17867,5352],{"class":5218},[5208,17869,17741],{"class":5222},[5208,17871,5352],{"class":5218},[5208,17873,17782],{"class":5270},[5208,17875,5299],{"class":5218},[5208,17877,17787],{"class":5232},[5208,17879,5385],{"class":5218},[5208,17881,17882],{"class":5210,"line":5970},[5208,17883,5421],{"class":5218},[5208,17885,17886],{"class":5210,"line":5975},[5208,17887,5427],{"class":5218},[6178,17889,17891],{"id":17890},"_6-використовуйте-typescript-strict-mode","6. Використовуйте TypeScript strict mode",[5135,17893,17894,17895,17898,17899,17902,17903,10561,17905,5197],{},"Увімкніть ",[5099,17896,17897],{},"strictNullChecks"," у ",[5099,17900,17901],{},"tsconfig.json",", щоб TypeScript примушував вас обробляти потенційні ",[5099,17904,5665],{},[5099,17906,5669],{},[5199,17908,17911],{"className":17909,"code":17910,"language":8298,"meta":5204,"style":5204},"language-json shiki shiki-themes light-plus dark-plus dark-plus","{\n  \"compilerOptions\": {\n    \"strict\": true,\n    \"strictNullChecks\": true,\n    \"noImplicitAny\": true\n  }\n}\n",[5099,17912,17913,17918,17927,17939,17950,17960,17964],{"__ignoreMap":5204},[5208,17914,17915],{"class":5210,"line":5211},[5208,17916,17917],{"class":5218},"{\n",[5208,17919,17920,17924],{"class":5210,"line":5239},[5208,17921,17923],{"class":17922},"sLwNe","  \"compilerOptions\"",[5208,17925,17926],{"class":5218},": {\n",[5208,17928,17929,17932,17934,17937],{"class":5210,"line":5257},[5208,17930,17931],{"class":17922},"    \"strict\"",[5208,17933,5311],{"class":5218},[5208,17935,17936],{"class":5282},"true",[5208,17938,7940],{"class":5218},[5208,17940,17941,17944,17946,17948],{"class":5210,"line":5264},[5208,17942,17943],{"class":17922},"    \"strictNullChecks\"",[5208,17945,5311],{"class":5218},[5208,17947,17936],{"class":5282},[5208,17949,7940],{"class":5218},[5208,17951,17952,17955,17957],{"class":5210,"line":5276},[5208,17953,17954],{"class":17922},"    \"noImplicitAny\"",[5208,17956,5311],{"class":5218},[5208,17958,17959],{"class":5282},"true\n",[5208,17961,17962],{"class":5210,"line":5293},[5208,17963,5421],{"class":5218},[5208,17965,17966],{"class":5210,"line":5319},[5208,17967,5427],{"class":5218},[5135,17969,17970],{},"Це запобіжить помилкам на кшталт:",[5199,17972,17974],{"className":5201,"code":17973,"language":5203,"meta":5204,"style":5204},"@Injectable()\nexport class BadService {\n  constructor(@Optional() private logger?: Logger) {}\n\n  someMethod() {\n    \u002F\u002F ❌ TypeScript помилка (у strict mode):\n    \u002F\u002F Object is possibly 'undefined'\n    this.logger.log('Message');\n\n    \u002F\u002F ✅ Правильно: перевірка або optional chaining\n    this.logger?.log('Message');\n  }\n}\n",[5099,17975,17976,17984,17995,18015,18019,18026,18031,18036,18054,18058,18063,18081,18085],{"__ignoreMap":5204},[5208,17977,17978,17980,17982],{"class":5210,"line":5211},[5208,17979,5267],{"class":5218},[5208,17981,5223],{"class":5270},[5208,17983,5273],{"class":5218},[5208,17985,17986,17988,17990,17993],{"class":5210,"line":5239},[5208,17987,5279],{"class":5214},[5208,17989,5283],{"class":5282},[5208,17991,17992],{"class":5286}," BadService",[5208,17994,5290],{"class":5218},[5208,17996,17997,17999,18001,18003,18005,18007,18009,18011,18013],{"class":5210,"line":5257},[5208,17998,5296],{"class":5282},[5208,18000,6266],{"class":5218},[5208,18002,5722],{"class":5270},[5208,18004,5785],{"class":5218},[5208,18006,5302],{"class":5282},[5208,18008,5308],{"class":5222},[5208,18010,5794],{"class":5218},[5208,18012,9044],{"class":5286},[5208,18014,5316],{"class":5218},[5208,18016,18017],{"class":5210,"line":5264},[5208,18018,5261],{"emptyLinePlaceholder":5260},[5208,18020,18021,18024],{"class":5210,"line":5276},[5208,18022,18023],{"class":5270},"  someMethod",[5208,18025,8821],{"class":5218},[5208,18027,18028],{"class":5210,"line":5293},[5208,18029,18030],{"class":5391},"    \u002F\u002F ❌ TypeScript помилка (у strict mode):\n",[5208,18032,18033],{"class":5210,"line":5319},[5208,18034,18035],{"class":5391},"    \u002F\u002F Object is possibly 'undefined'\n",[5208,18037,18038,18040,18042,18044,18046,18048,18050,18052],{"class":5210,"line":5324},[5208,18039,5349],{"class":5282},[5208,18041,5352],{"class":5218},[5208,18043,5355],{"class":5222},[5208,18045,5352],{"class":5218},[5208,18047,5360],{"class":5270},[5208,18049,5299],{"class":5218},[5208,18051,16433],{"class":5232},[5208,18053,5385],{"class":5218},[5208,18055,18056],{"class":5210,"line":5346},[5208,18057,5261],{"emptyLinePlaceholder":5260},[5208,18059,18060],{"class":5210,"line":5388},[5208,18061,18062],{"class":5391},"    \u002F\u002F ✅ Правильно: перевірка або optional chaining\n",[5208,18064,18065,18067,18069,18071,18073,18075,18077,18079],{"class":5210,"line":5395},[5208,18066,5349],{"class":5282},[5208,18068,5352],{"class":5218},[5208,18070,5355],{"class":5222},[5208,18072,5914],{"class":5218},[5208,18074,5360],{"class":5270},[5208,18076,5299],{"class":5218},[5208,18078,16433],{"class":5232},[5208,18080,5385],{"class":5218},[5208,18082,18083],{"class":5210,"line":5418},[5208,18084,5421],{"class":5218},[5208,18086,18087],{"class":5210,"line":5424},[5208,18088,5427],{"class":5218},[10543,18090,18091,18092,18094,18095,18097],{},"Опціональні залежності збільшують складність коду та вимагають додаткових перевірок на ",[5099,18093,5665],{},"\u002F",[5099,18096,5669],{},". Використовуйте їх тільки там, де це справді необхідно — для другорядних функцій, які не впливають на основну бізнес-логіку.",[5128,18099],{},[5084,18101,18103],{"id":18102},"підсумкові-запитання-для-самоперевірки","Підсумкові запитання для самоперевірки",[18105,18106,18107,18120,18274,18306,18375,18404],"accordion",{},[18108,18109,5097,18112,18114,18115,5666,18117,18119],"accordion-item",{"icon":18110,"label":18111},"i-lucide-help-circle","❓ Чому NestJS не викидає помилку, коли провайдер позначений @Optional() відсутній?",[5099,18113,5101],{}," повідомляє DI-контейнеру, що залежність є необов'язковою. Якщо провайдер не знайдено, контейнер просто ін'єктує ",[5099,18116,5665],{},[5099,18118,5669],{}," замість викидання помилки. Це дозволяє сервісу успішно ініціалізуватися навіть без цієї залежності, але розробник має самостійно перевіряти її наявність перед використанням.",[18108,18121,18123,18138,18146,18149],{"icon":18110,"label":18122},"❓ У чому різниця між optional chaining (?.`) та явною перевіркою через `if`?",[5135,18124,18125,18129,18130,5666,18132,18134,18135,18137],{},[5150,18126,6528,18127,6184],{},[5099,18128,5914],{}," — лаконічний синтаксис для одноразових викликів методів або доступу до властивостей. Якщо значення є ",[5099,18131,5665],{},[5099,18133,5669],{},", вираз повертає ",[5099,18136,5669],{}," без викидання помилки.",[5135,18139,18140,18145],{},[5150,18141,18142,18143],{},"Явна перевірка ",[5099,18144,6538],{}," — використовується, коли потрібно виконати блок коду (кілька рядків) тільки при наявності залежності, або коли потрібна альтернативна логіка (fallback).",[5135,18147,18148],{},"Приклад:",[5199,18150,18152],{"className":5201,"code":18151,"language":5203,"meta":5204,"style":5204},"\u002F\u002F Optional chaining — для одного виклику\nthis.logger?.log('Message');\n\n\u002F\u002F Явна перевірка — для складної логіки\nif (this.cache) {\n  const cached = await this.cache.get(key);\n  if (cached) return cached;\n  await this.cache.set(key, newValue);\n}\n",[5099,18153,18154,18159,18177,18181,18186,18200,18227,18244,18270],{"__ignoreMap":5204},[5208,18155,18156],{"class":5210,"line":5211},[5208,18157,18158],{"class":5391},"\u002F\u002F Optional chaining — для одного виклику\n",[5208,18160,18161,18163,18165,18167,18169,18171,18173,18175],{"class":5210,"line":5239},[5208,18162,5812],{"class":5282},[5208,18164,5352],{"class":5218},[5208,18166,5355],{"class":5222},[5208,18168,5914],{"class":5218},[5208,18170,5360],{"class":5270},[5208,18172,5299],{"class":5218},[5208,18174,16433],{"class":5232},[5208,18176,5385],{"class":5218},[5208,18178,18179],{"class":5210,"line":5257},[5208,18180,5261],{"emptyLinePlaceholder":5260},[5208,18182,18183],{"class":5210,"line":5264},[5208,18184,18185],{"class":5391},"\u002F\u002F Явна перевірка — для складної логіки\n",[5208,18187,18188,18190,18192,18194,18196,18198],{"class":5210,"line":5276},[5208,18189,6538],{"class":5214},[5208,18191,5160],{"class":5218},[5208,18193,5812],{"class":5282},[5208,18195,5352],{"class":5218},[5208,18197,6670],{"class":5222},[5208,18199,5343],{"class":5218},[5208,18201,18202,18205,18207,18209,18211,18213,18215,18217,18219,18221,18223,18225],{"class":5210,"line":5293},[5208,18203,18204],{"class":5282},"  const",[5208,18206,6680],{"class":6357},[5208,18208,6683],{"class":5218},[5208,18210,6686],{"class":5214},[5208,18212,6689],{"class":5282},[5208,18214,5352],{"class":5218},[5208,18216,6670],{"class":5222},[5208,18218,5352],{"class":5218},[5208,18220,6698],{"class":5270},[5208,18222,5299],{"class":5218},[5208,18224,11875],{"class":5222},[5208,18226,5385],{"class":5218},[5208,18228,18229,18232,18234,18236,18238,18240,18242],{"class":5210,"line":5319},[5208,18230,18231],{"class":5214},"  if",[5208,18233,5160],{"class":5218},[5208,18235,6723],{"class":5222},[5208,18237,11327],{"class":5218},[5208,18239,11330],{"class":5214},[5208,18241,6680],{"class":5222},[5208,18243,5236],{"class":5218},[5208,18245,18246,18249,18251,18253,18255,18257,18259,18261,18263,18265,18268],{"class":5210,"line":5324},[5208,18247,18248],{"class":5214},"  await",[5208,18250,6689],{"class":5282},[5208,18252,5352],{"class":5218},[5208,18254,6670],{"class":5222},[5208,18256,5352],{"class":5218},[5208,18258,6855],{"class":5270},[5208,18260,5299],{"class":5218},[5208,18262,11875],{"class":5222},[5208,18264,5141],{"class":5218},[5208,18266,18267],{"class":5222},"newValue",[5208,18269,5385],{"class":5218},[5208,18271,18272],{"class":5210,"line":5346},[5208,18273,5427],{"class":5218},[18108,18275,18277,18288,18303],{"icon":18110,"label":18276},"❓ Чому поєднання @Optional() та @Inject() вимагає певного порядку декораторів?",[5135,18278,18279,18280,18283,18284,18287],{},"Декоратори у TypeScript застосовуються ",[5150,18281,18282],{},"знизу вгору"," (від найближчого до параметра). Порядок ",[5099,18285,18286],{},"@Optional() @Inject(TOKEN)"," означає:",[6047,18289,18290,18297],{},[5092,18291,18292,18293,18296],{},"Спочатку ",[5099,18294,18295],{},"@Inject(TOKEN)"," повідомляє DI-контейнеру, який токен шукати",[5092,18298,18299,18300,18302],{},"Потім ",[5099,18301,5101],{}," вказує, що відсутність токена не є критичною помилкою",[5135,18304,18305],{},"Якщо змінити порядок, декоратори можуть не спрацювати коректно, оскільки NestJS очікує такий паттерн для обробки метаданих.",[18108,18307,18309,18321,18369],{"icon":18110,"label":18308},"❓ Коли варто використовувати no-op stub замість перевірок `?.` у кожному методі?",[5135,18310,18311,18312,18315,18316,5666,18318,18320],{},"No-op stub (заглушка без операцій) доречна, коли опціональна залежність використовується у ",[5150,18313,18314],{},"багатьох місцях"," по всьому класу. Замість розміщення перевірок ",[5099,18317,7807],{},[5099,18319,5914],{}," у кожному методі, ви створюєте об'єкт-заглушку один раз у конструкторі:",[5199,18322,18324],{"className":5201,"code":18323,"language":5203,"meta":5204,"style":5204},"constructor(@Optional() logger?: Logger) {\n  this.logger = logger ?? new NoOpLogger();\n}\n",[5099,18325,18326,18344,18365],{"__ignoreMap":5204},[5208,18327,18328,18330,18332,18334,18336,18338,18340,18342],{"class":5210,"line":5211},[5208,18329,10284],{"class":5270},[5208,18331,6266],{"class":5218},[5208,18333,5722],{"class":5270},[5208,18335,5785],{"class":5218},[5208,18337,5355],{"class":5222},[5208,18339,5794],{"class":5218},[5208,18341,9044],{"class":5222},[5208,18343,5343],{"class":5218},[5208,18345,18346,18349,18351,18353,18355,18357,18359,18361,18363],{"class":5210,"line":5239},[5208,18347,18348],{"class":5282},"  this",[5208,18350,5352],{"class":5218},[5208,18352,5355],{"class":5222},[5208,18354,6683],{"class":5218},[5208,18356,5355],{"class":5222},[5208,18358,7134],{"class":5218},[5208,18360,7698],{"class":5282},[5208,18362,7444],{"class":5270},[5208,18364,7198],{"class":5218},[5208,18366,18367],{"class":5210,"line":5257},[5208,18368,5427],{"class":5218},[5135,18370,18371,18372,18374],{},"Тепер у всіх методах можна просто викликати ",[5099,18373,7799],{}," без перевірок. Це зменшує кількість умовних конструкцій та робить код чистішим.",[18108,18376,18378,18388,18393],{"icon":18110,"label":18377},"❓ Чи може опціональна залежність викликати проблеми у продакшні, якщо вона раптово стане недоступною?",[5135,18379,18380,18381,5160,18384,18387],{},"Так, якщо сервіс покладається на опціональну залежність для критичної функціональності, її раптова відсутність може призвести до ",[5150,18382,18383],{},"мовчазної деградації",[5162,18385,18386],{},"silent degradation","). Наприклад, якщо логування є опціональним, але у продакшні воно має збирати критичні події для аудиту, його відсутність може залишитися непоміченою.",[5135,18389,18390],{},[5150,18391,18392],{},"Рішення:",[5089,18394,18395,18398,18401],{},[5092,18396,18397],{},"Логувати факт відсутності залежності під час запуску застосунку",[5092,18399,18400],{},"Використовувати health checks для перевірки доступності критичних інтеграцій",[5092,18402,18403],{},"Розрізняти справді опціональні функції (аналітика) та критичні залежності (аудит-лог)",[18108,18405,18407,18423,18426,18608],{"icon":18110,"label":18406},"❓ Чи можна комбінувати @Optional() з useFactory провайдерами?",[5135,18408,18409,18410,18412,18413,5141,18415,5141,18417,5141,18419,18422],{},"Так, ",[5099,18411,5101],{}," працює з будь-яким типом провайдера: ",[5099,18414,5144],{},[5099,18416,5140],{},[5099,18418,5147],{},[5099,18420,18421],{},"useExisting",". DI-контейнер просто перевіряє наявність провайдера з відповідним токеном, незалежно від способу його реєстрації.",[5135,18424,18425],{},"Приклад з фабрикою:",[5199,18427,18429],{"className":5201,"code":18428,"language":5203,"meta":5204,"style":5204},"\u002F\u002F Модуль\nproviders: [\n  {\n    provide: 'REDIS_CLIENT',\n    useFactory: async () => {\n      if (!process.env.REDIS_URL) return undefined;\n      const client = createClient({ url: process.env.REDIS_URL });\n      await client.connect();\n      return client;\n    }\n  }\n]\n\n\u002F\u002F Сервіс\nconstructor(\n  @Optional()\n  @Inject('REDIS_CLIENT')\n  private redis?: RedisClientType\n) {}\n",[5099,18430,18431,18436,18445,18450,18460,18475,18499,18525,18537,18545,18549,18553,18557,18561,18566,18572,18581,18594,18604],{"__ignoreMap":5204},[5208,18432,18433],{"class":5210,"line":5211},[5208,18434,18435],{"class":5391},"\u002F\u002F Модуль\n",[5208,18437,18438,18442],{"class":5210,"line":5239},[5208,18439,18441],{"class":18440},"s5IvJ","providers",[5208,18443,18444],{"class":5218},": [\n",[5208,18446,18447],{"class":5210,"line":5257},[5208,18448,18449],{"class":5218},"  {\n",[5208,18451,18452,18455,18458],{"class":5210,"line":5264},[5208,18453,18454],{"class":5222},"    provide:",[5208,18456,18457],{"class":5232}," 'REDIS_CLIENT'",[5208,18459,7940],{"class":5218},[5208,18461,18462,18465,18467,18469,18471,18473],{"class":5210,"line":5276},[5208,18463,18464],{"class":5270},"    useFactory",[5208,18466,5197],{"class":5222},[5208,18468,6917],{"class":5282},[5208,18470,12475],{"class":5218},[5208,18472,8172],{"class":5282},[5208,18474,5290],{"class":5218},[5208,18476,18477,18479,18481,18483,18485,18487,18489,18491,18493,18495,18497],{"class":5210,"line":5293},[5208,18478,6718],{"class":5214},[5208,18480,11162],{"class":5218},[5208,18482,12494],{"class":5222},[5208,18484,5352],{"class":5218},[5208,18486,8945],{"class":5222},[5208,18488,5352],{"class":5218},[5208,18490,12503],{"class":6357},[5208,18492,11327],{"class":5218},[5208,18494,11330],{"class":5214},[5208,18496,12529],{"class":5282},[5208,18498,5236],{"class":5218},[5208,18500,18501,18503,18505,18507,18509,18511,18513,18515,18517,18519,18521,18523],{"class":5210,"line":5319},[5208,18502,6677],{"class":5282},[5208,18504,12552],{"class":6357},[5208,18506,6683],{"class":5218},[5208,18508,12391],{"class":5270},[5208,18510,12559],{"class":5218},[5208,18512,12562],{"class":5222},[5208,18514,8940],{"class":5222},[5208,18516,5352],{"class":5218},[5208,18518,8945],{"class":5222},[5208,18520,5352],{"class":5218},[5208,18522,12503],{"class":6357},[5208,18524,6884],{"class":5218},[5208,18526,18527,18529,18531,18533,18535],{"class":5210,"line":5324},[5208,18528,6844],{"class":5214},[5208,18530,12552],{"class":5222},[5208,18532,5352],{"class":5218},[5208,18534,12585],{"class":5270},[5208,18536,7198],{"class":5218},[5208,18538,18539,18541,18543],{"class":5210,"line":5346},[5208,18540,7290],{"class":5214},[5208,18542,12552],{"class":5222},[5208,18544,5236],{"class":5218},[5208,18546,18547],{"class":5210,"line":5388},[5208,18548,5869],{"class":5218},[5208,18550,18551],{"class":5210,"line":5395},[5208,18552,5421],{"class":5218},[5208,18554,18555],{"class":5210,"line":5418},[5208,18556,12642],{"class":5218},[5208,18558,18559],{"class":5210,"line":5424},[5208,18560,5261],{"emptyLinePlaceholder":5260},[5208,18562,18563],{"class":5210,"line":5872},[5208,18564,18565],{"class":5391},"\u002F\u002F Сервіс\n",[5208,18567,18568,18570],{"class":5210,"line":5877},[5208,18569,10284],{"class":5270},[5208,18571,5775],{"class":5218},[5208,18573,18574,18577,18579],{"class":5210,"line":5882},[5208,18575,18576],{"class":5218},"  @",[5208,18578,5722],{"class":5270},[5208,18580,5273],{"class":5218},[5208,18582,18583,18585,18587,18589,18592],{"class":5210,"line":5899},[5208,18584,18576],{"class":5218},[5208,18586,7850],{"class":5270},[5208,18588,5299],{"class":5218},[5208,18590,18591],{"class":5232},"'REDIS_CLIENT'",[5208,18593,8033],{"class":5218},[5208,18595,18596,18598,18600,18602],{"class":5210,"line":5905},[5208,18597,6914],{"class":5222},[5208,18599,11789],{"class":5222},[5208,18601,5794],{"class":5218},[5208,18603,11794],{"class":5222},[5208,18605,18606],{"class":5210,"line":5937},[5208,18607,5316],{"class":5218},[5135,18609,18610,18611,18613],{},"Якщо фабрика поверне ",[5099,18612,5669],{},", це еквівалентно відсутності провайдера.",[5128,18615],{},[5084,18617,18619],{"id":18618},"резюме-коли-та-як-використовувати-опціональні-залежності","Резюме: коли та як використовувати опціональні залежності",[5598,18621,18622,18654],{},[5601,18623,18626],{"icon":18624,"title":18625},"i-lucide-check-circle","✅ Використовуйте @Optional() для:",[5089,18627,18628,18633,18638,18643,18648],{},[5092,18629,18630,18632],{},[5150,18631,4742],{}," — сервіси мають працювати без логів у тестовому середовищі",[5092,18634,18635,18637],{},[5150,18636,942],{}," — застосунок може працювати без кешу, просто повільніше",[5092,18639,18640,18642],{},[5150,18641,5183],{}," — платіжні системи, аналітика, повідомлення можуть бути вимкнені",[5092,18644,18645,18647],{},[5150,18646,5189],{}," — модульна архітектура з опціональними функціями",[5092,18649,18650,18653],{},[5150,18651,18652],{},"Конфігурація з fallback"," — надання значень за замовчуванням при відсутності провайдера",[5601,18655,18658],{"icon":18656,"title":18657},"i-lucide-x-circle","❌ Не використовуйте @Optional() для:",[5089,18659,18660,18666,18672,18678,18684],{},[5092,18661,18662,18665],{},[5150,18663,18664],{},"Підключення до бази даних"," — критична залежність для більшості сервісів",[5092,18667,18668,18671],{},[5150,18669,18670],{},"Основної бізнес-логіки"," — якщо сервіс не може працювати без залежності",[5092,18673,18674,18677],{},[5150,18675,18676],{},"Аутентифікації та авторизації"," — безпека має бути гарантована",[5092,18679,18680,18683],{},[5150,18681,18682],{},"Конфігурації застосунку"," — базова конфігурація має бути завжди доступна",[5092,18685,18686,18689],{},[5150,18687,18688],{},"Інфраструктурних сервісів"," — черги, файлове сховище, системи повідомлень",[6178,18691,18693],{"id":18692},"чек-лист-правильного-використання","Чек-лист правильного використання",[18695,18696,18697,18701,18710,18737,18741,18744,18792,18796,18799,18863,18867,18870,18893,18897,18900],"steps",{},[6178,18698,18700],{"id":18699},"позначте-залежність-декоратором-optional","Позначте залежність декоратором @Optional()",[5135,18702,18703,18704,18706,18707,18709],{},"Додайте ",[5099,18705,5101],{}," перед параметром конструктора та оператор ",[5099,18708,6092],{}," у TypeScript-сигнатурі:",[5199,18711,18713],{"className":5201,"code":18712,"language":5203,"meta":5204,"style":5204},"constructor(@Optional() private readonly logger?: LoggerService) {}\n",[5099,18714,18715],{"__ignoreMap":5204},[5208,18716,18717,18719,18721,18723,18725,18727,18729,18731,18733,18735],{"class":5210,"line":5211},[5208,18718,10284],{"class":5270},[5208,18720,6266],{"class":5218},[5208,18722,5722],{"class":5270},[5208,18724,5785],{"class":5218},[5208,18726,5302],{"class":5222},[5208,18728,5305],{"class":5222},[5208,18730,5308],{"class":5222},[5208,18732,5794],{"class":5218},[5208,18734,5196],{"class":5222},[5208,18736,5316],{"class":5218},[6178,18738,18740],{"id":18739},"комбінуйте-з-inject-для-токенізованих-провайдерів","Комбінуйте з @Inject() для токенізованих провайдерів",[5135,18742,18743],{},"Якщо використовуєте рядкові або Symbol-токени:",[5199,18745,18747],{"className":5201,"code":18746,"language":5203,"meta":5204,"style":5204},"constructor(\n  @Optional()\n  @Inject('CONFIG_TOKEN')\n  private readonly config?: AppConfig\n) {}\n",[5099,18748,18749,18755,18763,18776,18788],{"__ignoreMap":5204},[5208,18750,18751,18753],{"class":5210,"line":5211},[5208,18752,10284],{"class":5270},[5208,18754,5775],{"class":5218},[5208,18756,18757,18759,18761],{"class":5210,"line":5239},[5208,18758,18576],{"class":5218},[5208,18760,5722],{"class":5270},[5208,18762,5273],{"class":5218},[5208,18764,18765,18767,18769,18771,18774],{"class":5210,"line":5257},[5208,18766,18576],{"class":5218},[5208,18768,7850],{"class":5270},[5208,18770,5299],{"class":5218},[5208,18772,18773],{"class":5232},"'CONFIG_TOKEN'",[5208,18775,8033],{"class":5218},[5208,18777,18778,18780,18782,18784,18786],{"class":5210,"line":5264},[5208,18779,6914],{"class":5222},[5208,18781,5305],{"class":5222},[5208,18783,7995],{"class":5222},[5208,18785,5794],{"class":5218},[5208,18787,8043],{"class":5222},[5208,18789,18790],{"class":5210,"line":5276},[5208,18791,5316],{"class":5218},[6178,18793,18795],{"id":18794},"додайте-перевірки-перед-використанням","Додайте перевірки перед використанням",[5135,18797,18798],{},"Використовуйте optional chaining або явні перевірки:",[5199,18800,18802],{"className":5201,"code":18801,"language":5203,"meta":5204,"style":5204},"this.logger?.log('Message');\n\u002F\u002F або\nif (this.logger) {\n  this.logger.log('Message');\n}\n",[5099,18803,18804,18822,18827,18841,18859],{"__ignoreMap":5204},[5208,18805,18806,18808,18810,18812,18814,18816,18818,18820],{"class":5210,"line":5211},[5208,18807,5812],{"class":5282},[5208,18809,5352],{"class":5218},[5208,18811,5355],{"class":5222},[5208,18813,5914],{"class":5218},[5208,18815,5360],{"class":5270},[5208,18817,5299],{"class":5218},[5208,18819,16433],{"class":5232},[5208,18821,5385],{"class":5218},[5208,18823,18824],{"class":5210,"line":5239},[5208,18825,18826],{"class":5391},"\u002F\u002F або\n",[5208,18828,18829,18831,18833,18835,18837,18839],{"class":5210,"line":5257},[5208,18830,6538],{"class":5214},[5208,18832,5160],{"class":5218},[5208,18834,5812],{"class":5282},[5208,18836,5352],{"class":5218},[5208,18838,5355],{"class":5222},[5208,18840,5343],{"class":5218},[5208,18842,18843,18845,18847,18849,18851,18853,18855,18857],{"class":5210,"line":5264},[5208,18844,18348],{"class":5282},[5208,18846,5352],{"class":5218},[5208,18848,5355],{"class":5222},[5208,18850,5352],{"class":5218},[5208,18852,5360],{"class":5270},[5208,18854,5299],{"class":5218},[5208,18856,16433],{"class":5232},[5208,18858,5385],{"class":5218},[5208,18860,18861],{"class":5210,"line":5276},[5208,18862,5427],{"class":5218},[6178,18864,18866],{"id":18865},"надайте-fallback-поведінку-або-значення-за-замовчуванням","Надайте fallback-поведінку або значення за замовчуванням",[5135,18868,18869],{},"Визначте, що робити при відсутності залежності:",[5199,18871,18873],{"className":5201,"code":18872,"language":5203,"meta":5204,"style":5204},"this.config = providedConfig ?? DEFAULT_CONFIG;\n",[5099,18874,18875],{"__ignoreMap":5204},[5208,18876,18877,18879,18881,18883,18885,18887,18889,18891],{"class":5210,"line":5211},[5208,18878,5812],{"class":5282},[5208,18880,5352],{"class":5218},[5208,18882,8061],{"class":5222},[5208,18884,6683],{"class":5218},[5208,18886,8066],{"class":5222},[5208,18888,7134],{"class":5218},[5208,18890,8071],{"class":6357},[5208,18892,5236],{"class":5218},[6178,18894,18896],{"id":18895},"задокументуйте-опціональну-залежність","Задокументуйте опціональну залежність",[5135,18898,18899],{},"Опишіть поведінку у JSDoc-коментарях:",[5199,18901,18903],{"className":5201,"code":18902,"language":5203,"meta":5204,"style":5204},"\u002F**\n * @param cache - Опціональний кеш-менеджер.\n *   Якщо не надано, сервіс працюватиме без кешування.\n *\u002F\n",[5099,18904,18905,18909,18920,18925],{"__ignoreMap":5204},[5208,18906,18907],{"class":5210,"line":5211},[5208,18908,16153],{"class":5391},[5208,18910,18911,18913,18915,18917],{"class":5210,"line":5239},[5208,18912,16168],{"class":5391},[5208,18914,16267],{"class":5282},[5208,18916,6624],{"class":5222},[5208,18918,18919],{"class":5391}," - Опціональний кеш-менеджер.\n",[5208,18921,18922],{"class":5210,"line":5257},[5208,18923,18924],{"class":5391}," *   Якщо не надано, сервіс працюватиме без кешування.\n",[5208,18926,18927],{"class":5210,"line":5264},[5208,18928,16237],{"class":5391},[5128,18930],{},[5135,18932,18933,18934,18936],{},"У цій лекції ми детально розглянули механізм опціональних залежностей у NestJS — потужний інструмент для створення гнучких та модульних застосунків. Декоратор ",[5099,18935,5101],{}," дозволяє позначити залежність як необов'язкову, що дає змогу сервісам працювати навіть за відсутності певних провайдерів.",[5135,18938,18939],{},"Ключові висновки:",[5089,18941,18942,18949,18958,18965,18971],{},[5092,18943,18944,18945,18948],{},"Опціональні залежності підходять для ",[5150,18946,18947],{},"другорядних функцій",": логування, кешування, аналітика, зовнішні інтеграції",[5092,18950,18951,18952,18957],{},"Використовуйте ",[5150,18953,18954,18955,6184],{},"optional chaining (",[5099,18956,5914],{}," для лаконічних викликів методів",[5092,18959,18960,18961,18964],{},"Надавайте ",[5150,18962,18963],{},"значення за замовчуванням"," для конфігураційних об'єктів",[5092,18966,18967,18970],{},[5150,18968,18969],{},"Документуйте"," поведінку при відсутності залежності",[5092,18972,18973,18976],{},[5150,18974,18975],{},"Не робіть опціональними"," критичні залежності: база даних, аутентифікація, основна бізнес-логіка",[5135,18978,18979,18980,18983,18984,5141,18987,5141,18990,5141,18992,18995],{},"У наступній лекції ми перейдемо до вивчення структури модулів NestJS — декоратора ",[5099,18981,18982],{},"@Module()"," та його властивостей ",[5099,18985,18986],{},"imports",[5099,18988,18989],{},"controllers",[5099,18991,18441],{},[5099,18993,18994],{},"exports",", що дозволяють організовувати застосунок у логічні блоки та керувати видимістю провайдерів між модулями.",[18997,18998,18999],"style",{},"html pre.shiki code .s8xlr, html code.shiki .s8xlr{--shiki-light:#AF00DB;--shiki-default:#C586C0;--shiki-dark:#C586C0}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 .sbdoH, html code.shiki .sbdoH{--shiki-light:#A31515;--shiki-default:#CE9178;--shiki-dark:#CE9178}html pre.shiki code .s8Opu, 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