How to avoid the problem come from `capture value` of function component?

[qinhuaihe]

reproduction

use-immer is really helpful. But I don't know what to do to solve the capture value problem.

Look at the reproduction, when I click the add button, the value changed. But the print method just printed the old value. How to avoid this problem?

[mweststrate]

In react state is only visible after it has been rendered. So if you have side effects that should see the state, you should call using useEffect, .e.g useEffect(() => { print(state.value }, [state.value])

On Tue, Nov 26, 2019 at 6:44 AM zmayor notifications@github.com wrote:

reproduction https://codesandbox.io/s/useimmer-capture-value-541ro

use-immer is really helpful. But I don't know what to do to solve the capture value problem.

Look at the reproduction, when I click the add button, the value changed. But the print method just printed the old value. How to avoid this problem?

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