Answers for "how do i put a leading zero in javascript"

7

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"
Posted by: Guest on August-02-2019
3

js number add zero before

('0' + 11).slice(-2) // '11'
('0' + 4).slice(-2)  // '04'
Posted by: Guest on December-05-2020

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