What You’ll Learn
- JavaScript syntax and variables
- Data types and operators
- Functions and events
- DOM manipulation
- Conditional statements and loops
- Basic animations and interactive elements
JavaScript is the programming language of the web. It makes websites interactive — from simple button clicks to complex web applications. With JavaScript, you can control page content, create animations, validate forms, and even build games.
Add a JavaScript file to your HTML page. Create a button that changes the background color when clicked. For example:
script.js
function changeColor() {
document.body.style.backgroundColor = "lightblue";
}
Then, in your HTML:
<button onclick="changeColor()">Change Background</button>
<script src="script.js"></script>