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jamiebuilds avatar jamiebuilds commented on May 31, 2024 1
let sleep = ms => new Promise(res => setTimeout(res, ms))

function useCounter() {
  let [count, setCount] = useState(0)
  let increment = async () => {
    await sleep(100)
    setCount(count => count + 1)
  }
  return { count, increment }
}

Make sure you use the setValue(latestValue => latestValue + 1) syntax so you don't run into issues using an old copy of count

from unstated-next.

 avatar commented on May 31, 2024

thank you very much

from unstated-next.

littlee avatar littlee commented on May 31, 2024

Will it be necessary to wrap methods in useCallback?

let sleep = ms => new Promise(res => setTimeout(res, ms))

function useCounter() {
  let [count, setCount] = useState(0)
  let increment = useCallback(async () => {
    await sleep(100)
    setCount(count => count + 1)
  }, []);
  return { count, increment }
}

from unstated-next.

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