ReactSphere
useMemo vs useCallback #9
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When should I use useMemo vs useCallback? |
Answered by
EimanTahir027
Apr 18, 2026
Replies: 1 comment
Use useMemo to memoize a computed value so it’s recalculated only when dependencies change. Use useCallback to memoize a function reference so it doesn’t change every render—mainly useful when passing callbacks to memoized children (React.memo) or as dependencies to other hooks. |
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Answer selected by
sudoUgando
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Use useMemo to memoize a computed value so it’s recalculated only when dependencies change. Use useCallback to memoize a function reference so it doesn’t change every render—mainly useful when passing callbacks to memoized children (React.memo) or as dependencies to other hooks.