Vue 懒加载

VUE实现 手机端不加载某些模块和功能

电脑端加载一些功能

vue-cli脚手架

https://www.webpackjs.com/guides/lazy-loading/#%E7%A4%BA%E4%BE%8B

webpack的懒加载功能

例子

<template>
  <div id="app">
    <img alt="Vue logo" src="./assets/logo.png">
    <New v-if="isShow"/>
    <HelloWorld msg="Welcome to Your Vue.js App"/>
  </div>
</template>

<script>
var windowWidth = document.body.clientWidth;
var New = null;
var isSetNew = false;
if(windowWidth > 800){
  New = ()=>import("./components/New.vue");
  isSetNew = true;
}
import HelloWorld from './components/HelloWorld.vue'
export default {
  name: 'App',
  data(){
    return {
      isShow: isSetNew
    }
  },
  components: {
    HelloWorld,
    New: New
  }
}
</script>

<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>

小屏幕的情况下

大屏幕的情况下

多加载载的New 模块会新生成一个js

0.js，可以重命名，

像这样

const _ = await import(/* webpackChunkName: "lodash" */ 'lodash');