Why should I debounce search in a React app?
Because firing a search on every keystroke hits rate limits and hurts performance. Debouncing means the search only runs after the user stops typing, which is cheaper and a better UX.
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More FAQs in Common Mistakes When Adding Advanced Features to a React App
Because they fail or take time, and the developer skipped loading and error states. Always handle all three states: loading, error, and success, so the UI never looks broken during a slow or failed operation.
Usually because a WebSocket or polling interval is still running after the component unmounts and tries to update state. Always clean up connections and intervals in useEffect to prevent leaks and these warnings.
Likely because it renders every message, growing the DOM unboundedly. Use windowing or cap the list to the latest N messages, removing old ones, so the DOM stays small and the chat stays fast.
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