» Tag
hooks
2 posts6–Jul 12, 2026
React useLocalStorage: SSR-Safe Persistent State Hook
A look at the four hidden bugs in hand-rolled useState+useEffect localStorage patterns, and how the useLocalStorage hook fixes SSR, sync, and serialization issues.
React useCallback vs useMemo: When Do You Really Need Them
Wrapping every function in useCallback can hurt performance instead of helping. Learn a profiler-first approach to knowing when useMemo and useCallback actually matter.