find key of v-for code example
Example 1: v-for
<ul id="example-2">
<li v-for="(item, index) in items">
{{ parentMessage }} - {{ index }} - {{ item.message }}
</li>
</ul>
Example 2: vue js v-for array index
<ul>
<li v-for="(val, index) in arr">
<!-- Do something... -->
</li>
</ul>