我将这一问题从登记册各组成部分中删除,从而将方法应用到部件组合方法。 这是因为,在改用原木页之前,我希望这种逻辑会发生。 总的来说,把你的逻辑置于方法之外是最佳的做法,因此,我的法典在前面写得很少。 希望有助于今后其他任何人:

我的登记册组成部分:

class Register extends Component {

  componentWillUnmount() {
    // Reset register status to allow return to register page
    if ( this.props.registerStatus !== "" ) this.props.dispatch( resetRegisterStatus() )
  }

  render() {
    if( this.props.registerStatus === SUCCESS ) { 
      return <Redirect push to = {LOGIN}/>
    }
    return (
      <div style = {{paddingTop: "180px", background:  radial-gradient(circle, rgba(106,103,103,1) 0%, rgba(36,36,36,1) 100%) , height: "100vh"}}>
        <RegistrationForm/>
      </div>
    );
  }
}

该警告自第V16.3.0号行政指示发布以来即已采用。

如果你使用职能部分,你就可以将既定的国家呼吁总结为效果。

劳动法典:

const HomePage = (props) => {
    
  props.setAuthenticated(true);

  const handleChange = (e) => {
    props.setSearchTerm(e.target.value.toLowerCase());
  };

  return (
    <div key={props.restInfo.storeId} className="container-fluid">
      <ProductList searchResults={props.searchResults} />
    </div>
  );
};

现在,你可以改变这一方向:

const HomePage = (props) => {
  // trigger on component mount
  useEffect(() => {
    props.setAuthenticated(true);
  }, []);

  const handleChange = (e) => {
    props.setSearchTerm(e.target.value.toLowerCase());
  };

  return (
    <div key={props.restInfo.storeId} className="container-fluid">
      <ProductList searchResults={props.searchResults} />
    </div>
  );
};

我刚才有过这个问题,在我弄清我做的错事之前,我只想到我如何撰写我的职能部分。

我正在这样做:

const LiveMatches = (props: LiveMatchesProps) => {
  const {
    dateMatches,
    draftingConfig,
    sportId,
    getDateMatches,
  } = props;

  if (!dateMatches) {
    const date = new Date();
    getDateMatches({ sportId, date });
  };

  return (<div>{component stuff here..}</div>);
};

我刚刚忘记在发出我的红色呼吁之前使用<条码>效应<>代码>。

因此,应当:

const LiveMatches = (props: LiveMatchesProps) => {
  const {
    dateMatches,
    draftingConfig,
    sportId,
    getDateMatches,
  } = props;

  useEffect(() => {
    if (!dateMatches) {
      const date = new Date();
      getDateMatches({ sportId, date });
    }
  }, [dateMatches, getDateMatches, sportId]);

  return (<div>{component stuff here..}</div>);
};

请彻底阅读错误信息。 地雷指有坏的阵亡分子。 I有一张不是Arrow功能的垫子。

onPress={navigation.navigate("Home", { screen: "HomeScreen" })}

onPress={() => navigation.navigate("Home", { screen: "HomeScreen" }) }

http://www.ohchr.org。 不能在你的情况下使用或如果错误为。 注

setTimeout(() => SetFilterData(data), 0);

www.un.org/Depts/DGACM/index_spanish.htm 例:

<>可见>

import ExpenseFilter from  ../ExpensesFilter 
    
function ExpensesView(props) {
    
    const [filterData, SetFilterData] = useState(  )
    
    const GetFilterData = (data) => {
       // SetFilterData(data);

       //*****WRAP useState VARIABLE INSIDE setTimeout WITH 0 TIME AS BELOW.*****
       setTimeout(() => SetFilterData(data), 0);
    
    }
    
    const filteredArray = props.expense.filter(expenseFiltered => 
      expenseFiltered.dateSpent.getFullYear().toString() === filterData);
    
    
    return (
    <Window>
      <div>
        <ExpenseFilter FilterYear = {GetFilterData}></ExpenseFilter>

http://www.ohchr.org。

const ExpensesFilter = (props) => {
    
    const [filterYear, SetFilterYear] = useState( 2022 )
    
    const FilterYearListener = (event) => {
        event.preventDefault()
        SetFilterYear(event.target.value)
    }
    
    props.FilterYear(filterYear)
    
    return (

Using React and Material UI (MUI) I changed my code from:

<IconButton onClick={setOpenDeleteDialog(false)}>
        <Close />
      </IconButton>

<><>

<IconButton onClick={() => setOpenDeleteDialog(false)}>
        <Close />
      </IconButton>

简单确定

如果您使用<>React Navigation,并且你正在使用setParams或setOptions,你必须将这些内容放在方法componentDidMount( of categorylement/code>或useffects( hook ofFunction elements.

在发出不同组成部分的警告时,不能更新一个组成部分

I have the same problem but when I dispatch an action inside a component rendered. You should dispatch the action inside useEffect hook to fix that problem

//dispatch action to inform user that  Marked days already have hours! 
  React.useEffect(() => {
    if (btn_class ==  redButton ) {
      dispatch({ type: ActionType.ADD_NOTIFICATION, payload:  Marked days already have hours!  });
    } else {
      dispatch({ type: ActionType.ADD_NOTIFICATION, payload:    });
    }
  }, [btn_class, dispatch]);

also use union type for btn-class variable *`

type ButtonState =  btnAddDay  |  redButton  |  btnAddDayBlue  |  btnAddDayGreen ;

页: 1

http://www.ohchr.org。

I was a bit confused as to what exactly triggers the problem, having a minimal immediately runnable example helped me grasp it a little better:

指数.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<script src="https://unpkg.com/react@17/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom@17/umd/react-dom.development.js"></script>
<script src="https://unpkg.com/@babel/[email protected]/babel.min.js"></script>
</head>
<body>
<div id="root"></div>
<script type="text/babel">
function NotMain(props) {
  props.setN(1)
  return <div>NotMain</div>
}

function Main(props) {
  const [n, setN] = React.useState(0)
  return <>
    <NotMain setN={setN} />
    <div>Main {n}</div>
  </>
}

ReactDOM.render(
  <Main/>,
  document.getElementById( root )
);
</script>
</body>
</html>

未发现错误:

反应-dom.development.js:61 警告:在提供不同组成部分(“NotMain”)时,无法更新一个部分(“Main”)。 在“NotMain`”内查找坏套线,沿用https://reactjs.org/link/setstate-in-render。

    at NotMain (<anonymous>:16:9)
    at Main (<anonymous>:21:31)

function NotMain(props) {
  React.useEffect(() => { props.setN(1) }, [])
  return <div>NotMain</div>
}

• Calling setState in render is not avoidable
• Calling setState() in React from render method

然而,在使用职能组成部分时,从概念上讲,情况比较好,因为构成部分的职能既是来源,又是规定反馈的守则。

我在吉特·霍特提出类似问题后,得以解决了这一问题,该议题导致我在文件,该评论表明如何在你档案中标明造成错误的确切线。 我知道,那里有 st痕。 希望能帮助别人!

function TopMenuItems() {
  const dispatch = useDispatch();

  function mountProjectListToReduxStore(projects) {
    const projectDropdown = projects.map((project) => ({
      id: project.id,
      name: project.name,
      organizationId: project.organizationId,
      createdOn: project.createdOn,
      lastModifiedOn: project.lastModifiedOn,
      isComplete: project.isComplete,
    }));
    projectDropdown.sort((a, b) => a.name.localeCompare(b.name));
    dispatch(loadProjectsList(projectDropdown));
    dispatch(setCurrentOrganizationId(projectDropdown[0].organizationId));
  }
};

function TopMenuItems() {
  const dispatch = useDispatch();

  const mountProjectListToReduxStore = useCallback((projects) => {
    const projectDropdown = projects.map((project) => ({
      id: project.id,
      name: project.name,
      organizationId: project.organizationId,
      createdOn: project.createdOn,
      lastModifiedOn: project.lastModifiedOn,
      isComplete: project.isComplete,
    }));
    projectDropdown.sort((a, b) => a.name.localeCompare(b.name));
    dispatch(loadProjectsList(projectDropdown));
    dispatch(setCurrentOrganizationId(projectDropdown[0].organizationId));
  }, [dispatch]);
};