type script predefine return type of enum code example

Example 1: typescript enum to string

enum AnEnum {
    One = 1,
    Two = 2
}
let stringOne = AnEnum[1]; // "One"
let stringTwo = AnEnum[AnEnum.Two]; // "Two"

Example 2: enum in ts

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