Adding custom properties to VStateSelect

VStateSelect.ts

// Create Base Mixins and Define Custom Properties
const base = Vue.extend({ mixins: [VAutocomplete] })
interface options extends InstanceType<typeof base> {
  /**
   * !Props unique to VStateSelect
   */
  contiguousOnly: boolean
  exclude: string[]
  includeTerritories: boolean
}
// Extend VAutocomplete to define the VStateSelect component
export default base.extend<options>().extend({
  name: 'v-state-select',
  props: {
    contiguousOnly: {
      type: Boolean,
      default: false,
    },
    exclude: {
      type: Array,
      default: () => [],
    },
    includeTerritories: {
      type: Boolean,
      default: false,
    },
  },
  computed: {
    allItems (): object[] {
      const { contiguousOnly, exclude, includeTerritories } = this
      const usaStates = new UsaStates({
        contiguousOnly,
        exclude,
        includeTerritories,
      })
      return usaStates.format({
        $text: 'name',
        $value: 'abbr',
      })
    },
    classes (): object {
      return {
        ...VAutocomplete.options.computed.classes.call(this),
        'v-state-select': true,
      }
    },
  },
})