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いくつかのケースの問題に関するcomputeMatchの警告に反応しますか？

私はisAuthenticatedという名前の小道具を持っています。また、コンソールにいくつかのケース警告が持続することも示しています。これをチェックしてください。

import React,{Component} from "react";
import {BrowserRouter as Router, Switch, Route} from "react-router-dom";
import LogoutHome from './Logout_Home';
import SignIn from '../Components/SignIn';
import jwt_decode from 'jwt-decode';
import {setCurrentUser} from '../actions/authActions';
import SignUp from '../Components/SignUp';
import setAuthToken from '../util/setAuthToken';
import AboutUs from '../containers/AboutUs';
import store from '../store';
import {connect} from "react-redux";
// check for TOKEN
if (localStorage.jwtToken) {
  // Set auth token header auth
  setAuthToken(localStorage.jwtToken);
  // Decode token and get user info and exp
  const decoded = jwt_decode(localStorage.jwtToken);
  // Set user and isAuthenticated
  store.dispatch(setCurrentUser(decoded));

  // Check for expired token
  const currentTime = Date.now() / 1000;
  if (decoded.exp < currentTime) {
    // Logout user
    store.dispatch(logoutUser());

    // Redirect to login
    window.location.href = '/login';
  }
}
class HomePage extends Component
{
  componentDidMount(){
    console.log(this.props.auth.isAuthenticated);
  }
    render(){
      var {
        isAuthenticated
      } = this.props.auth;
      return(
        <div>
          <Router>
            <div>
              <Switch>
                {this.props.auth.isAuthenticated===false ? (
                  <div>
                  <Route exact path='/' component={LogoutHome}/>
                  <Route  path='/Finance/Login' component={SignIn}/>
                  <Route  path='/Finance/AboutUs' component={AboutUs}/>
                  <Route  path='/Finance/ContactUs' component={ContactUs}/>
                  <Route  path='/Finance/SignUp' component={SignUp}/>
                  <Route  path='/Finance/Forgotpassword' component={Forgotpassword}/>
                  </div>
                  ) : (
                    <div>
                  <Route  path='/Finance/Home' component={Home}/>
                  </div>
                  )}
              </Switch>
            </div>
          </Router>
        </div>
      );
    }
}
function mapStateToProps(state){
  return{
    auth : state.auth
  };
}
export default connect(mapStateToProps)(HomePage);

そして、警告は次のようなものです。

index.js:2178 Warning: React does not recognize the `computedMatch` prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase `computedmatch` instead. If you accidentally passed it from a parent component, remove it from the DOM element.
    in div (at Homepage.js:50)
    in Switch (at Homepage.js:48)
    in div (at Homepage.js:47)
    in Router (created by BrowserRouter)
    in BrowserRouter (at Homepage.js:46)
    in div (at Homepage.js:45)
    in HomePage (created by Connect(HomePage))
    in Connect(HomePage) (at App.js:10)
    in div (at App.js:9)
    in App (at index.js:10)
    in Provider (at index.js:9)

多くの場所で天気予報を読んでいますが、異なる答えが得られているので、私は天気がケースの問題であるかどうかを理解していません。上記の貼り付けは、ホームページコンポーネントのみです。

node.jsreactjsreduxreact-redux
7
yash Choksi

From React doc

Reactが正当なDOM属性/プロパティとして認識されないpropを持つDOM要素をレンダリングしようとすると、unknown-prop警告が発生します。DOM要素が偽の小道具が浮かんでいます。

<Swtich> コンポーネント、次の行が表示されます。

React.cloneElement(child, { location, computedMatch: match })

この場合、childは<div></div>ので、非標準の小道具computedMatchがネイティブdomノードに渡されます<div>、したがってReactは健全な警告を与えます。したがって、<>または<Fragment>は警告を破棄します。

13
Arup Rakshit

私はその問題を解決しますremove<div>タグ内のタグ。または置換<div> with <React.Fragment>。

この場合 ：

import React,{Component} from "react";
import {BrowserRouter as Router, Switch, Route} from "react-router-dom";
import LogoutHome from './Logout_Home';
import SignIn from '../Components/SignIn';
import jwt_decode from 'jwt-decode';
import {setCurrentUser} from '../actions/authActions';
import SignUp from '../Components/SignUp';
import setAuthToken from '../util/setAuthToken';
import AboutUs from '../containers/AboutUs';
import store from '../store';
import {connect} from "react-redux";
// check for TOKEN
if (localStorage.jwtToken) {
  // Set auth token header auth
  setAuthToken(localStorage.jwtToken);
  // Decode token and get user info and exp
  const decoded = jwt_decode(localStorage.jwtToken);
  // Set user and isAuthenticated
  store.dispatch(setCurrentUser(decoded));

  // Check for expired token
  const currentTime = Date.now() / 1000;
  if (decoded.exp < currentTime) {
    // Logout user
    store.dispatch(logoutUser());

    // Redirect to login
    window.location.href = '/login';
  }
}
class HomePage extends Component
{
  componentDidMount(){
    console.log(this.props.auth.isAuthenticated);
  }
    render(){
      var {
        isAuthenticated
      } = this.props.auth;
      return(
        <div>
          <Router>
            <div>
              <Switch>
                {this.props.auth.isAuthenticated===false ? (
                  <React.Fragment>
                  <Route exact path='/' component={LogoutHome}/>
                  <Route  path='/Finance/Login' component={SignIn}/>
                  <Route  path='/Finance/AboutUs' component={AboutUs}/>
                  <Route  path='/Finance/ContactUs' component={ContactUs}/>
                  <Route  path='/Finance/SignUp' component={SignUp}/>
                  <Route  path='/Finance/Forgotpassword' component={Forgotpassword}/>
                  </React.Fragment>
                  ) : (
                    <React.Fragment>
                  <Route  path='/Finance/Home' component={Home}/>
                  </React.Fragment>
                  )}
              </Switch>
            </div>
          </Router>
        </div>
      );
    }
}
function mapStateToProps(state){
  return{
    auth : state.auth
  };
}
export default connect(mapStateToProps)(HomePage);
5
Chanaka