JSFiddle - React, Tailwind, and code Playground
by hmartiro
HTML
<ul>
<li>
<article>
<div class="player"></div>
</article>
</li>
<li>
<article>
<div class="player currentPlayer"></div>
</article>
</li>
<li>
<article>
<div class="player"></div>
</article>
</li>
</ul>
JavaScript
$(function() {
console.log($('div.player').index($('.currentPlayer')));
});