Javascript Date yyyyMMddHHmmss()

"use strict";/*from w  w w .j  a va2 s.  c  om*/
Object.defineProperty(exports, "__esModule", { value: true });
Date.prototype.yyyyMMddHHmmss = function () {
    var date = this;
    var year = date.getFullYear();
    var month = date.getMonth() + 1;
    var day = date.getDate();
    var hh = date.getHours();
    var mm = date.getMinutes();
    var ss = date.getSeconds();
    return "" + year +
        (month < 10 ? "0" + month : month) +
        (day < 10 ? "0" + day : day) +
        (hh < 10 ? "0" + hh : hh) +
        (mm < 10 ? "0" + mm : mm) +
        (ss < 10 ? "0" + ss : ss);
};