how to create a variable of type string and number in angular 6 code example

Example 1: typescript integer

// There is no int type, use number
const myInt: number = 17;
const myDecimal: number = 17.5;

Example 2: data type angular

let decimal: number = 6;
let hex: number = 0xf00d;
let binary: number = 0b1010;
let octal: number = 0o744;
let big: bigint = 100n;Try