使用路由懒加载是为了 更好的用户体验,首屏组件加载的速度快一点,解决了白屏的问题
懒加载就是延迟加载或者屎按需加载,在需要的时候进行加载
常用的懒加载有两种,vue异步组件和es的import
1.未使用懒加载的时候vue中的路由代码:
//每一个组件都会被加载进来 ,打开首页的时候全部都会加载import Vue from "vue"import Router from "vue-router"import HelloWorld from "@/components/HelloWorld.vue"Vue.use(Router)export default new Router({routes:[{path:"/",name:"HelloWorld",component:HelloWorld}]})
2.vue异步组件方式实现懒加载
import Vue from "vue"import Router from "vue-router"Vue.use(Router)export default new Router({routes:[{path:"/",name:"HelloWorld",component:resolve=>(require(["@/components/HelloWorld.vue"],resolve))}]})
3.es的import
import Vue from "vue"import Router from "vue-router"Vue.use(Router)const HelloWorld = ()=>import("@/components/HelloWorld.vue")export default new Router({path:"/",name:"HelloWorld",component:HelloWorld})//或export default new Router({path:"/",name:"HelloWorld",component:()=>import("../views/HelloWorld/index.vue")})