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即使在使用钩子刷新ReactJS之后也获取最后一个状态_Reactjs_React Hooks - Fatal编程技术网

即使在使用钩子刷新ReactJS之后也获取最后一个状态

即使在使用钩子刷新ReactJS之后也获取最后一个状态,reactjs,react-hooks,Reactjs,React Hooks,即使在刷新页面后,如何获取最后一个状态?刷新后状态返回到0 const [updateCounter, setUpdateCounter] = useState(0); async function updateCounter() { setUpdateCounter(updateCounter + 1); } <Button onClick={updateCounter()}>Update</Button> const[updateCounter,setUp

即使在刷新页面后,如何获取最后一个状态?刷新后状态返回到0

const [updateCounter, setUpdateCounter] = useState(0);

async function updateCounter() { 
  setUpdateCounter(updateCounter + 1);
}

<Button onClick={updateCounter()}>Update</Button>
const[updateCounter,setUpdateCounter]=useState(0);
异步函数updateCounter(){
setUpdateCounter(updateCounter+1);
}
更新

updateCounter
更改时,将其放入本地存储:

const [counter, setCounter] = useState(Number(localStorage.counter) || 0);
useEffect(() => {
  localStorage.counter = counter;
}, [counter]);
您也不应该同时拥有
updateCounter
number(处于状态)和
updateCounter
函数-使用不同的名称