How to make script type both text/babel and module?

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遥遥无期
遥遥无期 2021-02-07 06:59

It works perfectly because I haven\'t included JSX, but when I replace the script type with text/babel, it doesn\'t work because the module fails to load. bro

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  • 2021-02-07 07:06

    As mentioned in the docs, it's added in: v7.10.0.

    If you want to use your browser's native support for ES Modules, you'd normally need to set a type="module" attribute on your script tag.

    With @babel/standalone, set a data-type="module" attribute instead, like this:

    <script type="text/babel" data-type="module">

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  • 2021-02-07 07:09

    I think the question was if it is possible to use a script tag with two or more types at the same time (e.g. something like type="module, txt/babel"). As far as I know the answer is NO.

    JonDotsoy's answer helps with reduce typing React.createElement over and over again but even with such a "variable shortcut" it's not as comfortable as JSX when using larger templates with nested elements because h('div', {}, 'hello!!')... is difficult to maintain in such cases.

    The only way I found to combine native browser module support and in-browser Babel for JSX without using any build tool is this ... a rather dirty hack that uses eval and should not be used for production apps:

    index.html

    <body>
    
        <div id="app"></div>
    
    
        <!-- Scripts ------- -->
        <script src="vendor/js/babel.min.js"></script>
        <script src="vendor/js/react.development.js"></script>
        <script src="vendor/js/react-dom.development.js"></script>
        <script src="app/app.js" type="module"></script>
    
    </body>
    

    app/app.js

    import ComponentOne from "./ComponentOne.js";
    
    
    let template = `
    <div>
        <h1>Heading</h1>
        <hr />
        <ComponentOne msg="MsgText-ComponentOne" />
    </div>
    `;
    
    
    const App = () => {
        return (
            eval(Babel.transform(template, { presets: ['es2017', 'react'] }).code)
        );
    };
    
    
    ReactDOM.render(
        React.createElement(App, null),
        document.getElementById("app")
    );
    

    app/ComponentOne.js

    import ComponentTwo from "./ComponentTwo.js";
    
    
    let template = `
    <div>
        <h2>This is ComponentOne</h2>
        <p key="2">Property "msg" content: {props.msg}</p>
    
        <ComponentTwo msg="MsgText-ComponentTwo" />
    </div>
    `;
    
    
    const ComponentOne = (props) => {
        return(
            eval(Babel.transform(template, { presets: ['es2017', 'react'] }).code)
        );
    };
    
    export default ComponentOne;
    

    app/ComponentTwo.js

    let template = `
    <div>
        <h2>This is ComponentTwo</h2>
        <p key="2">Property "msg" content: {props.msg}</p>
    </div>
    `;
    
    
    const ComponentTwo = (props) => {
        return(
            eval(Babel.transform(template, { presets: ['es2017', 'react'] }).code)
        );
    };
    
    export default ComponentTwo;
    
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  • 2021-02-07 07:10

    Just in case if some one comes here looking for answer

    There is a support for data-plugins and data-presets in babel standalone

    <script data-plugins="transform-es2015-modules-umd" type="text/babel">
    

    see more here Babel standalone

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  • 2021-02-07 07:10

    you may prefer to use an alias to createElement. This way is faster for the engine. For example use h or e.

    const { createElement: h } = React;
    
    const App = () => {
       return h('div', {}, 'hello!!'); 
    }
    

    Otherwise, it is possible to use @babel/standalone module, please see more on here https://babeljs.io/docs/en/next/babel-standalone.html.

    <div id="app"></div>
    <!-- Load Babel -->
    <script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
    <!-- Your custom script here -->
    <script type="text/babel">
    const { render } = ReactDOM;
    
    const App = () => {
        return <div>hello!!</div>
    }
    
    render(<App />, document.getElementById('app'));
    </script>
    
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