Polyfill that makes you print out a Number in at least a certain number of digits. Examples: 7.minDigits(3) => '007'; 64.3.minDigits(4) => '0064.3'; 432.minDigits(2) => '432'

minDigits

Number.prototype.minDigits = function (d) {
    if ('number' !== typeof d) {
        return this.toString();
    }
    var s = this.toString().split('.');
    while (s[0].length < d) {
        s[0] = '0' + s[0];
    }
    return s[0] + (s[1] ? '.' + s[1] : '');
}