The Modern JavaScript Tutorial — Fundamentals
Book 1 (JavaScript Fundamentals) of Ilya Kantor's CC BY-NC-SA 4.0 tutorial — variables, functions, objects, arrays, closures, prototypes, classes, error handling, and async/await. Book 2 (Browser) and book 3 (Frameworks) are deferred to follow-up packs.
- JavaScript
- 31 lessons
- ~6 hours
- Free
- by Ilya Kantor
Learn JavaScript for free on Libre Academy with the The Modern JavaScript Tutorial — Fundamentals course: 31 interactive lessons you complete by writing real code in a built-in editor, graded instantly by hidden tests. No paywall, no sign-up — it runs in your browser and the free desktop app.
What you get
- Hands-on lessons with a real editor and instant, test-graded feedback.
- Free and open source — no account required to start.
- Runs in your browser, and offline in the free desktop app.
- JavaScript runs in your browser.
What's inside
- Foundations: Variables, Types, Control Flow
- Functions and Recursion
- Objects, Methods, and Constructors
- Arrays and Higher-Order Methods
- Closures and Scope
- Prototypes and Inheritance
- Classes
- Error Handling
- Promises and async/await
Start The Modern JavaScript Tutorial — Fundamentals free → More free JavaScript courses