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Erling Ellingsen
Solve interactive JavaScript challenges and improve your coding skills with fun programming puzzles and hands-on practice.
Test your JavaScript skills with live coding puzzles
alf.nu offers a series of interactive JavaScript challenges designed to help you practice and improve your programming skills. The site presents you with coding puzzles that you can solve directly in your browser, making it easy to learn by doing.
Whether you're brushing up on your JavaScript knowledge or looking for a fun way to test yourself, you'll find creative problems to tackle. It's a relaxed, hands-on environment that's great for learners who enjoy figuring things out through experimentation and play.
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