JSFiddle - React, Tailwind, and code Playground
by painotpi
HTML
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<input type='text' id='datepicker' />
<select id='language'>
<option value='english' selected='selected'>English</option>
<option value='fr'>France</option>
</select>
JavaScript
$('#datepicker').datepicker();
$('select#language').change(function(){
$("#datepicker").datepicker("option", $.datepicker.regional(["fr"]));
});