useCallback: Stable References, Memoized Children, and When Not to Bother

Q: What is "useCallback: Stable References, Memoized Children, and When Not to Bother" about?

useCallback only pays off when combined with React.memo on a child receiving the function as a prop. By itself it does nothing for performance — and has a cost.

Q: What topics does "useCallback: Stable References, Memoized Children, and When Not to Bother" cover?

This article covers: usecallback deep dive, react usecallback, react stable function reference, usecallback react memo, react performance hooks, when to use usecallback.

useCallback returns a stable function reference between renders. By itself that does nothing for performance — it only pays off when combined with React.memo on a child that receives the function as a prop. Here is the complete picture.

June 7, 20261 min read2 / 2

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useCallback QuizStabilize with useCallback

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