KooFE Frontend Team
Jun 4, 2023 · Frontend Development
Mastering React’s useMemo: When to Cache, Shallow vs Deep Comparisons
This article explains how React's useMemo hook caches expensive calculations, covers its default shallow reference comparison, and shows techniques such as JSON.stringify and lodash.isEqual for deep comparison to prevent unnecessary re‑renders.
deep-comparisonfrontendperformance
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