JSFiddle - React, Tailwind, and code Playground

by lbstr

HTML

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
<div id="d" data-txt="asdf">hi</div>

CSS

.red { color: red; }

JavaScript

$('#d').data('txt', undefined).addClass('red');