v for

1<ul id="example-2">
2  <li v-for="(item, index) in items">
3    {{ parentMessage }} - {{ index }} - {{ item.message }}
4  </li>
5</ul>

1<!-- To gain access to the array index: -->
2<ul>
3    <li v-for="(game, index) in games"></li>
4</ul>
5<!--
6	You only want the index in specific cases. Use `:key` as
7	standard. See the other greps.
8-->

1<li v-for="item in items" :key="item.message">
2    {{ item.message }}
3  </li>

1<ul>
2  <li v-for="(item, index) in items">
3    {{ index }} - {{ item }}
4  </li>
5</ul>

1<option v-for="(location, index) in locations" v-bind:value="location.id" v-bind:selected="index === 0">
2  {{ location.from }} - {{ location.to }}
3</option>