TypeScript

1. 1

   Hola, TypeScript

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

   Type básicos

   Primitive typesStringNumberBooleanNullUndefined+3
   25 min
3. 3

   Arrays y tuples

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

   Object Types e Interfaces

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

   Funciones

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

   Union y Literal Types

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

   Type Narrowing

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

   Type aliases vs interfaces

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

   Optional, readonly y nullable

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

    Enums

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

    Generics

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

    Classes

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

    Herencia y Abstract Classes

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

    Modules

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

    Utility Types

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

    Mapped y Conditional Types

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

    Declaration Files y Librerías

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

    tsconfig y el Compiler

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

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