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Topic
Effects, dependencies, cleanup, stale closures, request lifecycle, and hook behavior.
Practice items tagged with React Hooks and Effects.
Explains cleanup for subscriptions, timers, event listeners, and aborting stale fetches.
Combines debounce cleanup, AbortController, and request identity to prevent stale search results.
Explains how custom hooks share stateful behavior while preserving ownership, lifecycle, and a focused contract.
Explains what useEffect is for, how dependencies work, and how to avoid stale or runaway effects.
Repairs unstable Hook order caused by branches, early returns, callbacks, loops, or exception paths.
Owns a third-party widget through a DOM ref, effect lifecycle, minimal updates, and complete teardown.