xxxxxxxxxx<html lang="en"><head><meta charset="utf-8"><title>$(document).ready() Equivalent without jQuery</title><script>document.addEventListener("DOMContentLoaded", function(){ // Apply some style on paragraph document.getElementsByTagName("p")[0].style.background = "yellow"; console.log("DOM has been fully loaded and parsed.");});</script></head><body> <h1>This is a heading</h1> <p>This is a simple paragraph of text.</p></body></html>