JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="list">
    <li>milk</li>
    <li>butter</li>
    <li>eggs</li>
    <li>orange juice</li>
    <li>bananas</li>
</ul>

JavaScript

var list = document.getElementById('list');
var list_items = list.childNodes;
alert(list_items.length);