for this el has the same value vuejs code example

Example 1: v-for only getting one first value vuejs

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

Example 2: how to map over arrays vuejs

this.allCampaigns = response.data.data.campaigns.map(campaigns => ( campaigns.name))
map over array to access item (eg. just the campaign name)