Select.js

import VSelect from 'vuetify/lib/components/VSelect/VSelect'

export const Select = VSelect.extend({
  props: {
    openOnEnter: { type: Boolean, default: true },
  },
  methods: {
    onEnterDown() {
      if (this.openOnEnter === true) {
        this.constructor.superOptions.methods.onEnterDown.call(this)
      } else {
        this.hideMenu()
      }

      this.$emit('enter', this.internalValue)
    },
    hideMenu() {
      this.isMenuActive = false;
    }
  }
})