JSFiddle - React, Tailwind, and code Playground

HTML

<html>
    <head>
    </head>
    <body>
        <div id='test'>
        </div>
    </body>
</html>

JavaScript

var _dateBegin = new Date().getTime();
var _dateFinal = new Date(2014, 07, 17).getTime();
var _dateDiff = new Date(_dateFinal - _dateBegin);

alert(_dateDiff.);

//$('#test').append(_dateBegin.toString());