Javascript Date toISOStrings()

Date.prototype.toISOStrings = function toISOString(){
     var date=this;return((date.getUTCMonth()+1)/100+date.toUTCString()+date/1e3).replace(/..(..).+?(\d+)\D+(\d+).(\S+).*(...)/,"$3-$1-$2T$4.$5Z")
};

// Date.prototype.toISOString
Date.prototype.toISOStrings = function toISOString() {
 var date = this;

 return ((date.getUTCMonth() + 1) / 100 + date.toUTCString() + date / 1e3).replace(/..(..).+?(\d+)\D+(\d+).(\S+).*(...)/,'$3-$1-$2T$4.$5Z');
};