CODE EXAMPLE FOR JAVASCRIPT

vue state

// your-page.vue
<template>
    <v-autocomplete
        v-model="mailboxes"
        dense
        filled
        label="Choose Mailbox"
        :items="mailboxes"
        item-text='mailbox'
        item-value='mailbox'>
      </v-autocomplete>
</template>

<script>
export default {
   computed: {
      mailboxes: {
         get() {
            this.$store.state.mailbox // Get the value from the Vuex store
         },
         set(newMailbox) {
            this.$store.commit('SET_MAILBOX', newMailbox) // Update the Vuex store
         },
      }
   }
}
</script>