1️⃣ Cache Busting:
Browsers cache your files to improve performance. But this can be problematic when you update your CSS/JS. By adding a version number (e.g., style.css?v=1.2), you ensure that users always get the latest version, not a cached one.

2️⃣ Easy Updates:
When you release a new update, changing the version number guarantees that users will fetch the newest files instead of relying on the old cached versions.

3️⃣ Debugging Made Easy:
Versioning helps identify which version of a file is causing issues, making debugging simpler.

 const heading = document.getElementById("main-title");

💡The DOM isn’t part of JavaScript — it's provided by the browser! JavaScript just gives us the tools to work with it. 🤯

'use strict';


function testStrict() {
let x = 10;
console.log(x);
}

Show alerts and messages
Handle button clicks
Create games
Validate forms (like checking if a name was entered)
Change content on the page without reloading

🧪Example:
alert("Hello, world!"); // Try this one on your console.