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ts enum

// String enum 
enum Direction {
  Up = "UP",
  Down = "DOWN",
  Left = "LEFT",
  Right = "RIGHT",
}

// Numeric enums
enum Direction {
  Up = 1,
  Down,
  Left,
  Right,
}
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typescript type from enum values

enum Weekday {
  MONDAY = 'mon',
  TUESDAY = 'tue',
  WEDNESDAY = 'wed'
}

type WeekdayType = `${Weekday}`;
Comment

enum in ts

enum Direction {
    Up,
    Down,
    Left,
    Right,
}
Comment

enum usage typescript

enum UserResponse {
  No = 0,
  Yes = 1,
}

function respond(recipient: string, message: UserResponse): void {
  console.log(recipient, message); // "Princess Caroline",  1
}

respond("Princess Caroline", UserResponse.Yes);
Comment

typescript value in enum

export enum MESSAGE_TYPE {
    INFO = 1,
    SUCCESS = 2,
    WARNING = 3,
    ERROR = 4,
};

var type = 3;

if (type in MESSAGE_TYPE) {

}
Comment

enums in typescript

enum Direction {
  Up = 1,
  Down,
  Left,
  Right,
}
Comment

typescript enum

enum Sides {LEFT, RIGHT};
Sides.LEFT;  // 0
Sides.RIGHT; // 1

const typeFromEnum: Sides.LEFT = Sides.LEFT; // Enums become types!

console.log(Sides);   // { '0': 'LEFT', '1': 'RIGHT', LEFT: 0, RIGHT: 1 } 

type leftOrRight = keyof typeof Sides; // 'LEFT' | 'RIGHT'

let sideName: string = Sides[0];  // 'LEFT'  reverse mapping


enum EnumWithString {
  X = "XX",
  Y = "YY",
};
console.log(EnumWithString); // { X: 'XX', Y: 'YY' }  no reverse mapping
Comment

TypeScript enum

enum Direction {
  Up = 1,
  Down,
  Left,
  Right,
}
We’ll first start off with numeric enums, which are probably more familiar if you’re coming from other languages. An enum can be defined using the enum keyword.

If we wanted, we could leave off the initializers entirely:
enum Direction {
  Up,
  Down,
  Left,
  Right,
}
  
enum Direction {
  Up = "UP",
  Down = "DOWN",
  Left = "LEFT",
  Right = "RIGHT",
}
Comment

ts enum

enum vscode {
    good,bad,medium
}

console.log(vscode.bad)
Comment

ts enum

enum Direction {
  Up = 1,
  Down,
  Left,
  Right,
}
Try
Comment

typescript enum

enum EMoney {
	gopay = 'gopay',
	dana = 'dana',
	ovo = 'ovo'
}

enum Bank {
	bca = 'bca',
	mandiri = 'mandiri',
	bri = 'bri'
}

interface OnlineShop<T> {
	payment: T
}

const payment: OnlineShop<Bank> = {
	payment: Bank.bca
}
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