JavaScript
Domain: Internet & Web
🎯 Motivation
The programming language of the web. Runs in the browser. Adds interactivity: clicks, animations, dynamic content.
📋 Concrete Example
JavaScript: button.addEventListener(click, () => { alert(‘Hello!’); }). When the user clicks the button, a popup appears. JavaScript makes web pages interactive, not just static.
🔗 Analogy
JavaScript is like electricity in a house - the frame (HTML) and decoration (CSS) are static. Electricity (JS) makes things move: lights turn on, the doorbell rings, the TV works. JavaScript brings web pages to life.