Convert a number of seconds as integer to a string of hours, minutes and seconds (HH:MM:SS)

secondsToTime.js

var secondsToTime = function(s) {
    var pad = function(v) {
        return v < 10 ? '0' + v : v.toString();
    }

    var result = '';
    for (var i = 0; i < 3; i++) {
        result = pad(s % 60) + (i ? ':' : '') + result;
        s = Math.floor(s / 60);
    }

    return result;
}