check true with if vue.js code example
Example: vue v-if compare string
<span v-for="role in user.roles">
<span v-if="role.name == 'Admin'">Yes</span>
<span v-else>-</span>
</span>
<span v-for="role in user.roles">
<span v-if="role.name == 'Admin'">Yes</span>
<span v-else>-</span>
</span>