vue之异步组件

异步加载组件，在当前组件需要被加载时才会加载

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
    </style>
</head>
<body>
    <div id="app">
        <App></App>
    </div>
    <script src="./vue.js"></script>
    // 2.设置type='module'
    <script type='module'>
        // import xxx from './modules.js';
        const App = {
            data() {
                return {
                    isShow: false
                }
            },
            methods: {
                asyncLoad() {
                    this.isShow = !this.isShow;
                }
            },
            components: {
                // 1.()=>import导入
                Test:()=>import('./Test.js')
            },
            template: `
                 <div>            
                    <button @click='asyncLoad'>异步加载</button>
                    <Test v-if='isShow'></Test>
                 </div>
            `,
        }
        new Vue({
            el: '#app',
            components: {
                App
            }
        })
    </script>
</body>
</html>

　　Test.js文件

export default  {
    data() {
        return {
            msg: '异步'
        }
    },
    template: `
                <h3>{{msg}}</h3>
            `

}

　　

posted @ 2020-11-12 16:47  你有我备注吗  阅读(194)  评论(0)  编辑  收藏  举报