cibernox/ember-power-select

<PowerSelect
  @selected={{this.mandatoryNumber}}
  @options={{this.numbers}}
  @class={{this.selectClass}}
  @dropdownClass={{this.selectClass}}
  @onChange={{fn (mut this.mandatoryNumber)}}
  @onClose={{this.verifyPresence}}
  @labelText="Country"
  @placeholder="I really NEED this info" as |number|>
  {{number}}
</PowerSelect>