报错 'app' is assigned a value but never used

Question

在声明app那句的上面添加了/ eslint-disable no-new /也还是报这个错

// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue';
import VueRouter from 'vue-router';
// import App from './App';
import Goods from './components/goods/goods';

Vue.use(VueRouter);

const routes = [
  {path: './components/goods/goods', component: Goods}
];

const router = new VueRouter({
  routes
});

/* eslint-disable no-new */
const app = new Vue({
  router
}).$mount('#app');

Answer 1

把 const app = 去掉

Answer 2

在eslint中定义了变量，却没有使用，会报eslint错误，可以参考eslint(https://eslint.org/docs/rules...

Answer 3

请问 为什么需要吧const app 去掉