Is it necessary to use useCallback to wrap the function returned in a hook?

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No, it is not necessary to use useCallback to wrap the function returned in a hook. However, it can be useful in certain situations to help optimize performance by preventing unnecessary re-renders.

When a child component receives a prop that is a function, it will re-render even if the function remains the same reference. Wrapping the function in useCallback can help to memoize the function and only update the reference when the dependencies change, preventing unnecessary re-renders when the function is passed down as a prop.

In general, if the function returned by a hook has dependencies or is passed down as a prop to child components, it might be a good idea to wrap it in useCallback.