JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://raw.github.com/timrwood/moment/1.6.2/min/moment.min.js"></script>
<script src="http://arshaw.com/xdate/downloads/0.7/xdate.dev.js"></script>
<div id="output"></div>

JavaScript

var $output = $('#output'),
    tomorrow = moment().add('days', 1);

$('<pre />').appendTo($output).text(tomorrow);

tomorrow = new XDate().addDays(-1);

$('<pre />').appendTo($output).text(tomorrow);