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Editor's pickLearn to add React keyboard shortcuts with clean listener setup, editable-field safeguards, modifier checks, conflict guidance, and keyboard-only testing.
Fix React stale state closures in timers and event handlers. Learn when to use functional updates, effect dependencies, or refs with practical examples.
Learn when React useMemo vs useCallback helps, how dependencies and referential equality work, and when memoization adds needless complexity in real components.
Learn how to fix React useEffect infinite loops by checking dependencies, object and function identity, state updates, and effect cleanup.
Learn to lazy load Next.js components with dynamic imports, loading fallbacks, click-to-load behavior, and guidance on SSR and bundle tradeoffs.
Fix Next.js hydration errors by correcting invalid HTML, browser-only rendering, unstable dates or random values, and server/client data mismatches—not masking warnings.