Javascript Date rfc3339()

function f(n) {//from www .j a  va 2 s.co m
    return n < 10 ? '0' + n : n;
}

Date.prototype.rfc3339 = function() {
    return this.getUTCFullYear()   + '-' +
         f(this.getUTCMonth() + 1) + '-' +
         f(this.getUTCDate())      + 'T' +
         f(this.getUTCHours())     + ':' +
         f(this.getUTCMinutes())   + ':' +
         f(this.getUTCSeconds())   + 'Z';
};