<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="vue.min.js"></script>
</head>
<body>
  <!-- (value, key, index) in user -->
  <div id="app">
    <ul>
      <li v-for="(item, index) in names">{{item}} -- {{index}}</li>
    </ul>


    <ul>
      <li v-for="(value, key, index) in user" v-bind:key="index">
 