Javascript Date toMysqlFormat()

function twoDigits(d) {
    if (0 <= d && d < 10) return "0" + d.toString();
    if (-10 < d && d < 0) return "-0" + (-1 * d).toString();
    return d.toString();
}

Date.prototype.toMysqlFormat = function() {
    return this.getUTCFullYear() + "-" + twoDigits(1 + this.getUTCMonth()) + "-" + twoDigits(this.getUTCDate()) + " " + twoDigits(this.getUTCHours()) + ":" + twoDigits(this.getUTCMinutes()) + ":" + twoDigits(this.getUTCSeconds());
};


module.exports = Date.prototype.toMysqlFormat;