Feeling Rusty on React? These 10 Free Problems Will Tell You Exactly What You Forgot

Been away from React for a while — new job, a break, switched stacks — and not sure where the rust actually is? Instead of re-reading docs, try solving these 10 problems. Each one isolates a single concept, runs real test cases in the browser, and takes 10–15 minutes. If you get stuck, that's the exact spot to go re-learn. 1. Counter with Reset The most basic hook there is — but "basic" is exactly where rust hides. Build a counter with increment, decrement, and a reset that actually resets t