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React Performance
React Quiz
React Performance
Optimize React applications using memoization, lazy loading, and profiling.
Question 1 of 10
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What is the fundamental difference between `useMemo` and `useCallback`?
`useMemo` is for asynchronous code, `useCallback` is for synchronous code.
There is no difference; they are aliases.
`useCallback` triggers a re-render, whereas `useMemo` does not.
`useMemo` memoizes a value, while `useCallback` memoizes a function definition.