TypeScript

1. 1

   Привет, TypeScript

   What TypeScript isTsc compile stepRunning a .ts fileThe play button
   20 мин
2. 2

   Базовые типы (Type)

   Primitive typesStringNumberBooleanNullUndefined+3
   25 мин
3. 3

   Массивы и tuples

   Array typesReadonly arraysTuple typesFixed-length tuplesNamed tuple elements
   25 мин
4. 4

   Object-типы (Type) и интерфейсы (Interface)

   Object literal typesInterface keywordRequired vs optional propertiesStructural typingExcess property checks
   25 мин
5. 5

   Функции

   Parameter typesReturn typesVoid returnDefault parametersRest parametersFunction type expressions+1
   25 мин
6. 6

   Union- и Literal-типы (Type)

   Union typesString literal typesNumeric literal typesLiteral narrowing with as constUnion of object shapes
   25 мин
7. 7

   Сужение типов (Type Narrowing)

   Typeof narrowingTruthiness narrowingEquality narrowingIn operator narrowingInstanceof narrowingDiscriminated unions+1
   30 мин
8. 8

   Type aliases vs interfaces

   Type aliasesInterface declarationsExtending interfacesIntersection typesDeclaration mergingWhen to pick which
   20 мин
9. 9

   Optional, readonly и nullable

   Optional propertiesReadonly propertiesNon-null assertion operatorOptional chainingNullish coalescingStrictNullChecks
   25 мин
10. 10

    Enums

    Numeric enumsString enumsConst enumsEnums vs string literal unionsReverse mapping caveats
    20 мин
11. 11

    Generics

    Generic functionsGeneric interfacesType parametersType inference for genericsBounded generics with extendsDefault type parameters
    30 мин
12. 12

    Классы (Class)

    Class declarationsConstructorsInstance propertiesAccess modifiers (public, private, protected)Readonly fieldsParameter properties+1
    25 мин
13. 13

    Наследование и Abstract Classes

    Extends keywordSuper callsMethod overrideAbstract classesAbstract methodsImplements with interface
    25 мин
14. 14

    Модули (Module)

    ES module syntaxNamed exportsDefault exportType-only importsRe-exportsModule resolution basics
    25 мин
15. 15

    Utility Types

    Partial<T>Required<T>Readonly<T>Pick<T, K>Omit<T, K>Record<K, V>+2
    30 мин
16. 16

    Mapped и conditional types

    Keyof operatorMapped types syntaxKey remapping with asConditional typesInfer keywordDistributive conditional types
    30 мин
17. 17

    Declaration-файлы и библиотеки

    .d.ts filesDefinitelyTyped (@types packages)Ambient declarationsDeclare moduleTypeRoots and types option
    25 мин
18. 18

    tsconfig и компилятор (Compiler)

    Tsconfig.jsonStrict modeTarget and libModule and moduleResolutionOutDir and rootDirIncremental and watch+1
    30 мин

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