JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://harvesthq.github.io/chosen/chosen.jquery.js"></script>
<link rel="stylesheet" href="http://harvesthq.github.io/chosen/chosen.css">
<select class=cls>
    <option value=''/>
    <option value='-1'/>Add new...
</select>

JavaScript

$('.cls').chosen().change(function() { if ($(this).val()==='-1') alert('clicked'); });