JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js"></script>
<label>Test 1 (native): <input id="test" type="text" style="width: 100%"/></label><br/>
<label>Test 2 (moment without format): <input id="test2" type="text" style="width: 100%"/></label><br/>
<label>Test 3 (moment with format): <input id="test3" type="text" style="width: 100%"/></label>

JavaScript

var dateStr = "Dec/30/2016";

document.getElementById('test').value = new Date(dateStr);

document.getElementById('test2').value = moment(dateStr).toDate();

document.getElementById('test3').value = moment(dateStr, "MMM/dd/yyyy").toDate();