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Dev Tools · 1h ago

New useDeepMemo Hook Solves React Referential Instability

By Meridian48 News Desk · Summarised from DEV Community ·

React's useMemo fails when dependencies are objects or arrays because it uses reference equality. The new useDeepMemo hook from react-hook-lab v1.6.0 compares values structurally, preventing unnecessary re-renders. It handles circular references, nested objects, Dates, RegExps, Maps, and Sets.

Meridian48 take
A practical tool for React developers, but deep equality checks can be expensive; use it judiciously.
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Stop Fighting Referential Instability: Solving React Re-Renders with useDeepMemo →
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reactperformance-optimization
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