JavaScript format number to day with always 3 digits [duplicate]

Answer 1

I found an elegant solution by Samuel Mullen on his blog. I simply optimized the zeroes creation.

function lpad(value, padding) {
    var zeroes = new Array(padding+1).join("0");
    return (zeroes + value).slice(-padding);
}

Usage: lpad(12, 3) results in "012"