Understanding What JavaScript Is
JavaScript is a programming language that makes websites interactive. While HTML structures the page and CSS styles it, JavaScript brings it to life with dynamic behavior.
What JavaScript Does
With JavaScript, websites can respond to clicks, show alerts, load new content without refreshing, animate elements, validate forms, and create fully interactive apps.
How JavaScript Works
Your browser has a built-in JavaScript engine that reads and runs JavaScript code. When you visit a site, the browser executes the scripts to create interactive features.
Why JavaScript Is Everywhere
JavaScript is used on almost every website. It powers menus, sliders, buttons, search bars, online games, web apps, and even modern frameworks like React or Vue.
Beyond the Browser
With technologies like Node.js, JavaScript can also run on servers. This makes it a versatile language used for both front-end and back-end development.
The Simple Takeaway
JavaScript is the language that adds interactivity to websites. It works with HTML and CSS to create modern, dynamic, and responsive web experiences.