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Typescript All In One

TypeScript 3.5 is now available.

https://www.typescriptlang.org/#download-links

# INSTALL
$ npm i -g typescript

# COMPILE
$ tsc helloworld.ts

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https://github.com/xgqfrms/ts

TypeScript & Interface & Type alias

https://github.com/xgqfrms/ts/issues/6

TypeScript Types

https://www.typescriptlang.org/docs/handbook/basic-types.html

https://www.typescriptlang.org/docs/handbook/advanced-types.html

Boolean
Number
String
Array

Tuple
Enum
Any
Void

Null and Undefined

Never

Object

// Type assertions
// A note about ‘let’

Intersection Types

Union Types

Type Guards and Differentiating Types
  User-Defined Type Guards
    Using type predicates
    Using the in operator
  typeof type guards
  instanceof type guards

Nullable types
  Optional parameters and properties
  Type guards and type assertions

Type Aliases
  Interfaces vs. Type Aliases

String Literal Types

Numeric Literal Types

Enum Member Types

Discriminated Unions

Exhaustiveness checking
  Polymorphic this types

Index types
  Index types and index signatures

Mapped types
  Inference from mapped types

Conditional Types
  Distributive conditional types
  Type inference in conditional types
  Predefined conditional types

https://www.typescriptlang.org/docs/handbook/utility-types.html

Partial<T>
Readonly<T>
Record<K,T>
Pick<T,K>
Omit<T,K>
Exclude<T,U>
Extract<T,U>
NonNullable<T>
Parameters<T>
ConstructorParameters<T>
ReturnType<T>
InstanceType<T>
Required<T>
ThisParameterType
OmitThisParameter
ThisType<T>

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