Vue-异步组件

一般情况下，在代码开头引入组件：

import Vue from 'vue'
import Router from 'vue-router'
import Home from '@/pages/home/Home'
import City from '@/pages/city/City'
import Detail from '@/pages/detail/Detail'
Vue.use(Router)

export default new Router({
  routes: [
    {
      path: '/',
      name: 'Home',
      component: Home
    },
    {
      path: '/city',
      name: 'City',
      component: City
    },
    {
      path: '/detail/:id',
      name: 'Detail',
      component: Detail
    }
  ],
  scrollBehavior (to, from, savedPosition) {
    return { x: 0, y: 0 }
  }
})

打开控制台检查一下：

我们想访问首页的时候只加载首页的代码，加载详情页的时候再加载详情页的代码，需要按需加载：

import Vue from 'vue'
import Router from 'vue-router'
Vue.use(Router)

export default new Router({
  routes: [
    {
      path: '/',
      name: 'Home',
      component: () => import('@/pages/home/Home')
    },
    {
      path: '/city',
      name: 'City',
      component: () => import('@/pages/city/City')
    },
    {
      path: '/detail/:id',
      name: 'Detail',
      component: () => import('@/pages/detail/Detail')
    }
  ]
})

打开控制台检查一下：