JSFiddle - React, Tailwind, and code Playground

by luka kupunia

HTML

<div id="test">
    <div></div>
    <div></div>
    <div id="demo"></div>
    <div></div>
</div>

JavaScript

var a = document.createElement('div');

document.querySelector('#test').insertBefore(a,document.querySelector('#test').childNodes[3])
console.log(document.querySelector('#test').childNodes)