减少打包组件vue.config.js——Webpack的externals的使用

vue.config.js

module.exports = {
    configureWebpack:{
      externals: {
         vue: 'Vue',
         'vue-router':'VueRouter',
         axios: 'axios'
      }
    }
}


在index.html文件中引入CDN

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <link rel="icon" href="<%= BASE_URL %>favicon.ico">
    <title></title>
    
    <link href="https://cdn.bootcss.com/element-ui/2.12.0/theme-chalk/index.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/vue/2.6.10/vue.js"></script>
    <script src="https://cdn.bootcss.com/vue-router/3.1.3/vue-router.js"></script>
    <script src="https://cdn.bootcss.com/element-ui/2.12.0/index.js"></script>
    <script src="https://cdn.bootcss.com/element-ui/2.12.0/locale/zh-CN.js"></script>
    <script src="https://cdn.bootcss.com/axios/0.19.0-beta.1/axios.js"></script>
  </head>
  <body>
    <noscript>
      <strong>We're sorry but good doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
    </noscript>
    



    <div id="app"></div>
    <!-- built files will be auto injected -->
  </body>
</html>

在index.js文件中删除导入的elementui

import Vue from 'vue'
import App from './App.vue'
import router from './router'
//import 'element-ui/lib/theme-chalk/index.css'
//import './plugins/element.js'
import './assets/global.css'
Vue.config.productionTip = false

new Vue({
  router,
  render: h => h(App)
}).$mount('#app')
原文地址:https://www.cnblogs.com/xbzhu/p/11815197.html