JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js"></script>
<div id="datepicker"></div>

JavaScript

$(document).ready(function() {
    $('#datepicker').datepicker({ dateFormat: 'dd-mm-yy' });
    alert($("#datepicker").datepicker('option', 'dateFormat'));
    alert($('#datepicker').datepicker("getDate"));
});