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10 React Hooks Interview Questions That Expose Gaps in Developer Knowledge

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A developer has compiled a list of advanced React Hooks interview questions that frequently appear in real-world technical interviews, going beyond basic queries like 'what is useState'. The questions cover nuanced topics such as stale closures in useEffect, the difference between useMemo and useCallback, and why custom hooks must be prefixed with 'use'. Key concepts addressed include asynchronous state updates, shallow equality in dependency arrays, and when to use useLayoutEffect over useEffect. The list also walks through a practical useDebounce custom hook example to illustrate cleanup functions and closure behavior. The resource is aimed at developers actively preparing for React interviews who want to test deeper understanding of how hooks work under the hood.

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