JavaScriptOverview

Learn JavaScript

JavaScript is the language of the web — it runs in every browser, powers interactive frontends, and (via Node.js) runs on servers, mobile apps, and even embedded devices. If you want to build anything for the web, JavaScript is not optional; it's the foundation everything else is built on.
This tutorial series takes you from your first script to advanced, modern JavaScript. You'll learn core syntax and data types, functions and closures, objects and prototypes, asynchronous programming with promises and async/await, the DOM and browser APIs, ES6+ features, and the patterns real applications use every day. Whether you're completely new to programming or leveling up your fundamentals, these tutorials will build a deep, practical understanding of the language.
Tutorial contents