JSFiddle - React, Tailwind, and code Playground

HTML

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js"></script>
<div id="container"></div>

JavaScript

$("#container").datepicker({
  numberOfMonths: 2,
  beforeShowDay: function(date) {
    console.log(date);
    return [false];
  }
});