mutation array vfor vue not working code example

Example 1: vuejs v-for array index

<!-- 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.
-->

Example 2: vue js v-for array index

<ul>
  <li v-for="(val, index) in arr">
    <!-- Do something... -->
  </li>
</ul>