配合 Vue.js 配置 Webpack。原文：https://moxo.io/blog/2016/09/10/npm-vue-webpack/

app.js.patch

import Vue from 'vue';
import App from './App.vue'

- new Vue({
-  el: '#app',
-  template: `<h1>Hello World with webpack-dev-server</h1>`
- })

+ const app = new Vue({
+  render: h => h(App)
+ })

+ app.$mount('#app')

App.vue

<template>
  <h1>Hello World with webpack-dev-server</h1>
</template>

<script>
export default {
  data () {
    return {}
  }
}
</script>