在 vue 路由懶加載中給 Webpack Chunks 命名

最早的路由定義方式

import Vue from 'vue'
import VueRouter from 'vue-router'

import Home from '../views/Home.vue'
import About from '../views/About.vue'
import Login from '../views/Login.vue'

Vue.use(VueRouter)

const routes = [
  { path: '/', name: 'Home', component: Home },
  { path: '/about', name: 'About', component: About },
  { path: '/login', name: 'Login', component: Login }
]

const router = new VueRouter({
  routes
})

export default router

進化版路由組件懶加載以及定義 chunk name

...
const routes = [
  {
    path: '/',
    name: 'Home',
    component: () => import(/* webpackChunkName: "Home" */ '../views/Home.vue')
  },
  {
    path: '/about',
    name: 'About',
    component: () => import(/* webpackChunkName: "About" */ '../views/About.vue')
  },
  {
    path: '/login',
    name: 'Login',
    component: () => import(/* webpackChunkName: "Login" */ '../views/Login.vue')
  }
]
...

這樣寫起來是完全沒有問題的，但是路由很多的情況下，這裏的代碼量就會增加，我們能不能把「路徑」與「組件」綁定的操作放大循環裏面去做呢

const routeOptions = [
  { path: '/', name: 'Home' },
  { path: '/about', name: 'About' },
  { path: '/login', name: 'Login' }
]
const routes = routeOptions.map(route => {
	return {
		...route,
		component: () => import(`@/views/${route.name}.vue`)
	}
})
const router = new VueRouter({
  routes
})

這樣就優雅了不少，但是我們的 chunk name 還沒有加上去，這個時候就要用到 webpack 2.6.0 以上的佔位符[ index ]和[ request ]

const routeOptions = [
  { path: '/', name: 'Home' },
  { path: '/about', name: 'About' },
  { path: '/login', name: 'Login' }
]

const routes = routeOptions.map(route => {
  return {
    ...route,
    component: () => import(/* webpackChunkName: "[request]" */ `../views/${route.name}.vue`)
  }
})

const router = new VueRouter({
  routes
})

build 一下就能看到想要的 chunk 了