Modern JavaScript·hard 30 min 120 XP
Implement Debounce
Return a debounced wrapper that delays calling fn until calls have stopped for `delay` ms.
Examples
- const d = debounce(fn, 200); // fn only runs once typing pauses for 200ms
Constraints
- Keep the required function name so the tests can find it
- Return a value instead of only logging it
- Do not mutate inputs unless the challenge asks you to
Implement Debounce · editor
Code runs in an isolated Web Worker with a 3-second timeout — no DOM access, and it can never hang the page.