Fundamentals
JavaScript Fundamentals
Learn to read and write JavaScript from absolute zero. Variables, strings, functions, arrays, loops — all explained with code you actually run. No prior coding experience needed.
Beginner40 min9 lessons9 hands-on
Free account. No credit card.
You'll be able to
- ✓Run JavaScript files from the terminal using Node.js
- ✓Create and use variables, strings, arrays, and objects
- ✓Write reusable functions with parameters and return values
- ✓Control program flow with if/else and for loops
- ✓Build a complete working script from scratch