Hey Product Hunt, Jesper here! 👋 I am a freelance coder and I got this idea from an interview for a javascript role about a year ago. They asked me to predict in what order a few logs would print in an async piece of javascript code. I was a bit rusty on javascript I have to admit, but it really revealed my blind spots in how the javascript event loop works. So I thought to myself; this could be a way to learn the javascript event loop. So I built JS Brain Teasers, interactive challenges that make JavaScript's execution model fun and easy to learn. Instead of memorizing patterns, you build real intuition by stepping through code execution and seeing exactly how the event loop works. What makes it different: ✅ Addictively fun challenges (you'll find yourself doing "just one more") ✅ Mobile-friendly - learn anywhere, anytime ✅ Real-time feedback that explains the "why," not just the "what" ✅ Built for developers who already know basics but want to master the tricky parts The best part? Learning JavaScript doesn't have to be frustrating. It can actually be engaging and fun! Login and try the free challenge and see if you can resist doing another one 😉 Would love your feedback - what JavaScript concepts do you find most confusing?

JS Brain Teasers

Learn the javascript event loop in a new and fun way

Learn the javascript event loop in a new and fun way