带有JSX的Reactjs：意外令牌'<'

小编典典

带有JSX的Reactjs：意外令牌'<'

reactjs

我是初学者。当我使用渲染元素时createElement，它可以正常工作。但是使用JSX进行以下渲染时，会抛出错误提示Uncaught SyntaxError: Unexpected token <

const { createElement } = React;

const { render } = ReactDOM;



const style = {

    fontFamily: 'Arial',

    color: 'White',

    backgroundColor: 'Red',

    padding: '10px',

    border: '10px solid black'

}



render(

    <h1 id="emp-title" className="header" style={style}>Full time Employee</h1>,

    document.getElementById('react-container-jsx')

);


<html>

    <head>

        <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.8.4/umd/react.production.min.js"></script>

        <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.8.4/umd/react-dom.production.min.js"></script>

        <title>React 101</title>

    </head>

    <body>

        <div id="react-container-jsx"></div>

        <script src="index.js"></script>

    </body>

</html>

尝试：尝试过但没用

<script src="index.js" type = "text/babel"></script>

也

<script src="index.js" type = "text/jsx"></script>

没用任何帮助深表感谢。

阅读 289

2020-07-22

共1个答案

小编典典

您将需要链接babel-standalone以及

并添加type="text/babel"到脚本标签。

工作片段：

const { createElement } = React;

const { render } = ReactDOM;



const style = {

    fontFamily: 'Arial',

    color: 'White',

    backgroundColor: 'Red',

    padding: '10px',

    border: '10px solid black'

}



render(

    <h1 id="emp-title" className="header" style={style}>Full time Employee</h1>,

    document.getElementById('react-container-jsx')

);


<html>

    <head>

        <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.8.4/umd/react.production.min.js"></script>

        <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.8.4/umd/react-dom.production.min.js"></script>

        <script src="https://unpkg.com/[email protected]/babel.min.js"></script>

        <title>React 101</title>

    </head>

    <body>

        <div id="react-container-jsx"></div>

        <script src="index.js" type="text/babel"></script>

    </body>

</html>

2020-07-22