v-for vuejs

<ul id="example-1">
  <li v-for="item in items" :key="item.message">
    {{ item.message }}
  </li>
</ul><!-- To gain access to the array index: -->
<ul>
    <li v-for="(game, index) in games"></li>
</ul>
<!--
	You only want the index in specific cases. Use `:key` as
	standard. See the other greps.
--><option v-for="(location, index) in locations" v-bind:value="location.id" v-bind:selected="index === 0">
  {{ location.from }} - {{ location.to }}
</option><ul>
  <li v-for="(item, index) in items">
    {{ index }} - {{ item }}
  </li>
</ul><li v-for="item in items" :key="item.message">
    {{ item.message }}
  </li><ul id="example-1">
  <li v-for="item in items" :key="item.message">
    {{ item.message }}
  </li>
</ul>


const example1 = new Vue({
  el: '#example-1',
  data: {
    items: [
      { message: 'Foo' },
      { message: 'Bar' }
    ]
  }
})