JAVASCRIPT

padstart javascript

let str1 = '123';
let val = str1.padStart(6, '0'); 
console.log(val);	// "000123"
let val2 = str1.padStart(6, '*'); 
console.log(val2);	// "***123"

padstart in javascript

//The padStart() method pads the current string with another string 
//(multiple times, if needed) until the resulting string reaches the given
const hours='2'
console.log(hours.padStart(2, 0))
//console '02'