Explore Playgrounds
Public code snippets shared by the community. Open any snippet in its playground, fork it, and make it your own.
Tiny Event Emitter
JavaScript
Pub/sub in ~20 lines: on, off, once, emit.
42
0
5/20/2026
0
Promise Pool (Concurrency Limit)
JavaScript
Run async tasks with a max in-flight cap — like p-limit, in 12 lines.
51
0
5/20/2026
0
Group By, Chunk, Unique
JavaScript
Three array utilities you reach for weekly.
45
0
5/20/2026
0
Fetch with Timeout & Retry
JavaScript
AbortController-based timeout plus exponential-backoff retry.
45
0
5/20/2026
0
Deep Clone (Structured)
JavaScript
Use structuredClone for cycles, dates, maps, sets, and typed arrays.
46
0
5/20/2026
0
Debounce & Throttle
JavaScript
Classic rate-limiting helpers for input handlers and scroll listeners.
42
0
5/20/2026
0
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