JSFiddle - React, Tailwind, and code Playground
by hohoya33
HTML
<div id="feed">
<ul>
<li class="item">1</li>
<li class="item">2</li>
<li class="item">3</li>
<li class="item">4</li>
<li class="item">5</li>
<li class="item">6</li>
</ul>
</div>
JavaScript
$('#feed > ul > li:gt(-6)').remove();