JavaScript is free to use for everyone. Many chapters in this tutorial end with an exercise where you can check your level of knowledge. Exercise? What is this? What is a correct syntax for assigning a value to a variable? See all JavaScript Exercises.

Dec 9, 2021 · The Modern JavaScript Tutorial. In this tutorial, you will learn about JavaScript basics, error handling, promises, Async/await, the DOM and more. This is a very detailed course filled with hundreds of lessons and challenges for you to complete.

Learn how to use if, else if, else, switch, and ternary syntax to control the flow of a program in JavaScript. Learn about JavaScript function syntax, passing data to functions, the return keyword, ES6 arrow functions, and concise body syntax. Learn about global and block level scope in …

Dec 20, 2021 · Created by developers from Google, JavaScript online offers 40 free courses that you can dive into to start learning JS. You will also find some project-based code tutorials that are the best ways to learn the language, like the Flashcard application.

Jul 6, 2023 · The goal of this handbook is to quickly introduce you to the basics of JavaScript so you can start programming applications. Instead of covering all the theories and concepts of JavaScript, I'll be teaching you only the most important building blocks of the language.

Apr 12, 2025 · Modern JavaScript Tutorial: simple, but detailed explanations with examples and tasks, including: closures, document and events, object oriented programming and more.

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learn-js.org is a free interactive JavaScript tutorial for people who want to learn JavaScript, fast.

Learn the basics of JavaScript by solving 140+ interactive coding challenges. Along the way you will build a game, a browser extension, and even