Dev Tools · 1h ago
New useDeepMemo Hook Solves React Referential Instability
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.
Read the full reporting
Stop Fighting Referential Instability: Solving React Re-Renders with useDeepMemo →
DEV Community
reactperformance-optimization