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Modern JavaScript·hard 30 min 120 XP

Implement Throttle

Return a throttled wrapper that calls fn at most once per `interval` ms, running immediately on the first call.

Examples

  • const t = throttle(fn, 100); // fn runs at most once per 100ms

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 Throttle · editor

Code runs in an isolated Web Worker with a 3-second timeout — no DOM access, and it can never hang the page.