JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://steven-web.net/clickdummies/frameworks/bootstrap.css">
<script src="http://steven-web.net/clickdummies/frameworks/bootstrap.min.js"></script>
<div class="container">
  <div class="row">
    <div class="col">
    <div id="colldiv" class="collapse">
    Hello World!
    </div>
    <a href="#" data-toggle="collapse" data-target="#colldiv" id="link">Click</a>
    </div>
  </div>
</div>

JavaScript

$('#colldiv').on('show.bs.collapse', function () {
            $(#)
        });

        $('#colldiv').on('hide.bs.collapse', function () {
           alert('World');
        });