title: How to get the v-for index in Vue.js?
body: <p>I have a Vue component like bellow:</p>
  
  <pre><code>&lt;div v-for="item in items" :key="there I want get the for-loop index"  &gt;
  
  &lt;/div&gt;
  
  ... 
  
  data(){
    items: [{name:'a'}, {name:'b'}...]
  }
  </code></pre>
  
  <p>How can I get the index when I execute the for-loop in my vue.js?</p>