JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<div class="bs-example">
  <ul class="nav nav-pills" role="tablist">
    <li role="presentation" class="dropdown"> <a href="#" class="dropdown-toggle" id="drop4" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false"> Dropdown <span class="caret"></span> </a>
      <ul class="dropdown-menu" id="menu1" aria-labelledby="drop4">
        <li><a href="#">Action</a></li>
        <li><a href="#">Another action</a></li>
        <li><a href="#">Something else here</a></li>
        <li role="separator" class="divider"></li>
        <li><a href="#">Separated link</a></li>
      </ul>
    </li>
  </ul>
</div>

JavaScript

$('#menu1 li').click(function(){
$('#drop4').html($(this).text() + '<span class="caret"></span>')
})