angular use enum in 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: typescript enum value to enum

enum Number {
  One,
  Two
}  

const numberOne: Number = "One" as Number;
const otherNumberOne: Number = Number.One;

const stringOne = Number[Number.One];