Question

我刚刚启动了ReactJs，我在以下代码的输出中面临问题

<!DOCTYPE html>
<html>
<head>
    <title>My first react file</title>
    <script src="https://unpkg.com/react@latest/dist/react.js"></script>
    <script src="https://unpkg.com/react-dom@latest/dist/react-dom.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/6.1.19/browser.js"></script>
</head>
<body>
    <div id='react-container'></div>
    <script type= "text/babel">
        /*
        ReactDOM.render(React.createElement('ul', null ,
            React.createElement('li', null , 'item 1'),
            React.createElement('li', null , 'item 2'),
            React.createElement('li', null , 'item 3')), 
            document.getElementById('react-container'));
        */
        ReactDOM.render(
            <ul>
                <li> item 1 </li>
                <li> item 2 </li>
                <li> item 3 </li>
            </ul>,
            document.getElementById('react-container'));
    </script>

</body>
</html>

上面的代码没有在浏览器和控制台中产生预期的输出，我收到以下错误：
未捕获的TypeError：无法读取属性＆＃39;键＆＃39;未定义的

React Js代码不起作用

0 个答案: