Answers for "make number have leading zeros nodejs"

javascript print int with leading zeros

function padLeadingZeros(num, size) {
    var s = num+"";
    while (s.length < size) s = "0" + s;
    return s;
}
padLeadingZeros(57, 3);// "057"
padLeadingZeros(57, 4); //"0057"

add leading zeros javascript

const str1 = '5';
console.log(str1.padStart(2, '0')); // expected output: "05"