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