未定義的錯誤，導出類時

-2

我是新來的反應。我創建了一個使用外部庫而不使用npm的演示項目。但是，當我出口的一類，它顯示了錯誤exports is not defined 文件導出logout類時發生未定義的錯誤，導出類時

<!DOCTYPE html> 
    <html> 
    <head> 
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"> 
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font- awesome.min.css"> 
    <link rel="stylesheet" href="css/style.css"> 
    <link rel="stylesheet" href="css/login.css"> 

    <!-- SCRIPTS Starts --> 
    <!-- EXTERNALS --> 

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js">   </script> 
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"> </script> 

    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.5.4/react.min.js"> </script> <!-- 1 --> 
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.5.4/react-dom-server.min.js"></script> <!-- 2 --> 
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.5.4/react-dom.min.js"></script> <!-- 3 --> 
    <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.34/browser.min.js"></script> <!-- 4 --> 
    <script src="https://unpkg.com/[email protected]/umd/ReactRouter.js"></script> <!-- 5 --> 
    <script src="https://cdnjs.cloudflare.com/ajax/libs/axios/0.16.1/axios.min.js"> </script> <!-- 6 --> 

    <!-- EXTERNALS --> 


    <script src="http://192.168.1.64:5011/js/dependencies/sails.io.js"></script> 
    <script src="js/config.js"></script> 
    <!-- Components --> 
    <!-- <script type="text/babel" src="js/components/loginComponent.js"> </script> --> 
    <script type="text/babel" src="js/components/logoutComponent.js"></script> 
    <script type="text/babel" src="js/components/indexComponent.js"></script> 
    <!-- <script type="text/babel" src="react-2.js"></script> --> 

    <!-- SCRIPTS Ends --> 
    </head> 
    <body> 
    <div id="chat-react-app-index"></div> 
</body> 
</html>

logout.js錯誤。

console.log("Logout component >>>>>>>>>>>>>>>>>>>>"); 
    export default class Logout extends React.Component { 

    constructor(props) { 
    super(props); 
    //this.props.gender = this.state.gender; 
    //this.handleInputChange = this.handleInputChange.bind(this); 
    this.logoutClick = this.logoutClick.bind(this); 
    //this.props.logouts = this.props.logouts.bind(this); 
    console.log("this.props.loginslogouts"); 
    console.log(this.props.loginslogouts); 
} 

logoutClick() { 
console.log("logoutClick ============>>>.."); 
this.props.loginslogouts(true, false); 
var userName = JSON.parse(localStorage.getItem('userData')).username; 
var userId = JSON.parse(localStorage.getItem('userData')).userId; 
var userToken = JSON.parse(localStorage.getItem('userData')  ).userToken; 
var userProfilePic = JSON.parse(localStorage.getItem('userData') ).userProfilePic; 
io.socket.request({ 
method: 'POST', 
url: '/user/logout', 
data: { 
    userId : userId, 
}, 
headers: { 
    'userToken':userToken 
} 
}, function (resData, jwres) { 
//this.setState({logout: false}); 
console.log("Logout response -------- >>>>>>............"); 
console.log(resData); 
if (resData.status == 1) { 
    console.log("Logout Success"); 
    localStorage.removeItem("userData"); 
} 
}); 
} 

render() { 
return (
<div id="logoutClick" onClick = {this.logoutClick} className="row"> 
    <a className="btn btn-primary">LOGOUT</a> 
</div> 
) 
} 

}

index.js

var Router = ReactRouter.Router; 
    var Route = ReactRouter.Route; 
    var IndexRoute = ReactRouter.IndexRoute; 
    var Link = ReactRouter.Link; 
    var browserHistory = ReactRouter.browserHistory; 

    console.log("Index component >>>>>>>>>>>>>>>>>>>>"); 
    //import React, { Component } from 'react'; 
    //require('loginComponent'); 
    import Logout from './logoutComponent.js' 
    class Index extends React.Component { 

    constructor(props) { 
    super(props); 
    } 

    render() { 
     return (
     <div> 
     <Logout/> 
     INDEX 
     </div> 
    ) 
    } 

    } 

    ReactDOM.render(
    <Router history={browserHistory}> 
    <Route path="/" component={Index} /> 
    <Route path="/index" component={Index} /> 
    <Route path="*" component={Index} /> 
    </Router>, 
    document.getElementById('chat-react-app-index') 
);

來源

2017-06-13 sojimon c y

你在哪裏進口「logout.js」或者是「 /logout.js」''你退出進口？你的'ReactDOM.render（...）'在哪裏？ – EatYaFood

這export而不是exports。

像export class MyClass {}

來源

2017-06-13 05:33:26 EatYaFood

我將我的課程導出爲'export default Logout' –

您應該添加一段代碼，以便每個人都可以看到您實際上在做什麼 – EatYaFood

未定義的錯誤，導出類時

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