Questions about adding callback to useState hooks

[ddzy]

Do you want to request a feature or report a bug?
feature
What is the current behavior?
i want to do something after setState, but it doesn't seem to provide a callback parameter.

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem. Your bug will get fixed much faster if we can run your code and it doesn't have dependencies other than React. Paste the link to your JSFiddle (https://jsfiddle.net/Luktwrdm/) or CodeSandbox (https://codesandbox.io/s/new) example below:

What is the expected behavior?
Just add a callback into setState....
Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?

[TrySound]

For this purpose there is useEffect.

React.useEffect(() => {
  target.style.cssText += ``
}, [state])

[Jessidhia]

Probably useLayoutEffect as the change is user-visible. Depends on whether it's OK for it to happen on a separate animation frame, or on whether it has to be the same frame as the state update happens.

[ddzy]

For this purpose there is useEffect.

React.useEffect(() => {
  target.style.cssText += ``
}, [state])

Thks, i have been solved it !!!👀