JavaScript
The programming language that runs in web browsers, making websites interactive and handling everything from form validation to real-time updates.
What is JavaScript?
JavaScript is the programming language that runs in every web browser, turning static HTML pages into interactive experiences.
It's the only language browsers understand natively, which means it powers 98.9% of all websites. From simple button clicks to complex single-page apps, if something moves or responds on a webpage, JavaScript is handling it.
Most builders use it with frameworks like React or Next.js for frontend work, and Node.js to run it on servers. It's also the backbone of most AI tools and automation workflows since it can interact with APIs and handle async operations naturally.
Free to use. TypeScript (a superset of JavaScript) has become the preferred choice for serious projects since it adds type safety that catches bugs before they ship.
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Related Terms
A cloud platform for storing code, tracking changes, and collaborating with other developers using Git version control.
A JavaScript library for building user interfaces with reusable components. Created by Meta, powers Facebook, Instagram, and thousands of apps.
A utility-first CSS framework that lets you style websites by adding pre-built classes directly to your HTML instead of writing custom CSS.
A toolkit with pre-built code, libraries, and docs that lets you build apps for a specific platform without starting from scratch.
Reusable building blocks in software that handle specific functions and can be combined to build complete applications.
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