JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://multidatespickr.sourceforge.net/jquery-ui.multidatespicker.js"></script>
<input id="datePick" type="text"/>

CSS

.ui-datepicker .ui-datepicker-calendar .ui-state-highlight a {
	background: #743620; 
	color: white;
}

JavaScript

$('#datePick').multiDatesPicker({
    numberOfMonths: [2,6],
    onSelect: function (e) {
        var dates = $(this).val();
        var split = dates.split(",");
        var last = split[split.length - 1];
        console.log("d", last);
    }
});