TypeScript

1. 1

   Hello, TypeScript

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

   Type Basics

   Primitive typesStringNumberBooleanNullUndefined+3
   25 मिनट
3. 3

   Arrays and Tuples

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

   Object Types and Interfaces

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

   Functions

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

   Union and Literal Types

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

   Type Narrowing

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

   Type Aliases vs Interfaces

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

   Optional, Readonly, and Nullable

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

    Enums

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

    Generics

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

    Classes

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

    Inheritance and Abstract Classes

    Extends keywordSuper callsMethod overrideAbstract classesAbstract methodsImplements with interface
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14. 14

    Modules

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

    Utility Types

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

    Mapped and Conditional Types

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

    Declaration Files and Libraries

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

    tsconfig and the Compiler

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

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