hard20 pts · first answer countsreact-hooksrendering

Tooltip flashes in the wrong place

A tooltip measures its own height in useEffect, then sets its top position in state. Users see it flash in the wrong spot for one frame. What is the right fix?

A.Move the measurement into the render body using document.querySelectorB.Use useLayoutEffect, which runs after DOM changes but before the browser paintsC.Wrap the state update in startTransitionD.Add the tooltip height to the dependency array of useEffect

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Tooltip flashes in the wrong place

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