JSFiddle - React, Tailwind, and code Playground
by Brian Dillingham
HTML
<div class="btn-group">
<button type="button" class="btn dropdown-toggle" data-toggle="dropdown">
<img src="images/flag/United-Kingdom.png" alt=""> English <span class="fa fa-bars"></span>
</button>
<ul class="dropdown-menu" role="menu">
<li><a href="#"><img src="images/flag/Germany.png" alt=""> Deutsch</a></li>
<li><a href="#"><img src="images/flag/France.png" alt=""> Français</a></li>
<li><a href="#"><img src="images/flag/Spain.png" alt=""> Español</a></li>
<li><a href="#"><img src="images/flag/Nederlands.png" alt=""> Nederlands</a></li>
</ul>
</div>
JavaScript
$('.dropdown-menu a').click(function(){
$('.dropdown-toggle').html( $(this).html() + '<span class="fa fa-bars"></span>');
});