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Update useEffect.md - The explanation on the timing of useEffect() callback doesn't seem to be accurate. #6207

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Sep 23, 2023
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Update useEffect.md - The explanation on the timing of useEffect() callback doesn't seem to be accurate. #6207

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Update useEffect.md
JSerZANP Aug 9, 2023
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Update src/content/reference/react/useEffect.md
sophiebits Sep 23, 2023
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2 changes: 1 addition & 1 deletion src/content/reference/react/useEffect.md
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Expand Up @@ -62,7 +62,7 @@ function ChatRoom({ roomId }) {

* If some of your dependencies are objects or functions defined inside the component, there is a risk that they will **cause the Effect to re-run more often than needed.** To fix this, remove unnecessary [object](#removing-unnecessary-object-dependencies) and [function](#removing-unnecessary-function-dependencies) dependencies. You can also [extract state updates](#updating-state-based-on-previous-state-from-an-effect) and [non-reactive logic](#reading-the-latest-props-and-state-from-an-effect) outside of your Effect.

* If your Effect wasn't caused by an interaction (like a click), React will let the browser **paint the updated screen first before running your Effect.** If your Effect is doing something visual (for example, positioning a tooltip), and the delay is noticeable (for example, it flickers), replace `useEffect` with [`useLayoutEffect`.](/reference/react/useLayoutEffect)
* If your Effect wasn't caused by an interaction (like a click), React will generally let the browser **paint the updated screen first before running your Effect.** If your Effect is doing something visual (for example, positioning a tooltip), and the delay is noticeable (for example, it flickers), replace `useEffect` with [`useLayoutEffect`.](/reference/react/useLayoutEffect)

* Even if your Effect was caused by an interaction (like a click), **the browser may repaint the screen before processing the state updates inside your Effect.** Usually, that's what you want. However, if you must block the browser from repainting the screen, you need to replace `useEffect` with [`useLayoutEffect`.](/reference/react/useLayoutEffect)

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