JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/moment.js/2.8.4/moment.js"></script>
<script src="http://vitalets.github.io/combodate/combodate.js"></script>
<h3>Combodate</h3>
<div style="margin: 50px">
  <input type="text" id="date" data-format="MM/DD/YYYY HH:ss" data-template="MMM / D / YYYY hh:ss" value="11/12/2003 01:00" />
</div>
<button type="button">test</button>

JavaScript

$(function () {
  $('#date').combodate();
});

$("button").click(function () {
  launchChildRegisterModal();
});
var launchChildRegisterModal = function () {
  $('#date').combodate('setValue', "12/12/2003");
};