JSFiddle - React, Tailwind, and code Playground

by al3x88

HTML

<div>
  <div id="1">1</div>
  <div id="2">2</div>
  <!-- commento -->
  <div id="3">3</div>
</div>

JavaScript

console.log(document.getElementById('2').previousSibling);
console.log(document.getElementById('3').previousSibling);
console.log(document.getElementById('2').previousElementSibling);
console.log(document.getElementById('3').previousElementSibling);