IT STILL WORKS

components.lq-select.js

import Ember from 'ember'

const { Component } = Ember

export default Component.extend({
  // props
  availableItems: undefined,
  selectedItem: undefined,
  onSelectItem: undefined,
})

controllers.application.js

import Ember from 'ember'

const {
  A: EmberArray,
  set,
  get,
} = Ember

const availableItems = EmberArray([
  { id: 1, label: `The` },
  { id: 2, label: `Video` },
  { id: 3, label: `is` },
  { id: 4, label: `not` },
  { id: 5, label: `deprecated` },
])

export default Ember.Controller.extend({
  availableItems: undefined,
  selectedItem: undefined,
  init(...args) {
    this._super(...args)
    set(this, `availableItems`, availableItems)
    const selectedItem = availableItems.objectAt(3)
    set(this, `selectedItem`, selectedItem)
  },
  actions: {
  	setSelectedItem(itemId) {
      const availableItems = get(this, `availableItems`)
      itemId = parseInt(itemId, 10)
      const selectedItem = availableItems.find(item => get(item, `id`) === itemId)
    	set(this, `selectedItem`, selectedItem)
    }
  },
})

helpers.is-equal.js

import Ember from 'ember'

export function isEqual(params) {
  return params[0] === params[1]
}

export default Ember.Helper.helper(isEqual)

templates.application.hbs

<h1>Shoop da whoop</h1>

{{lq-select
  availableItems=availableItems
  selectedItem=selectedItem
  onSelectItem=(action "setSelectedItem")
}}

<br>
Selected Item: {{selectedItem.label}} with id {{selectedItem.id}}

templates.components.lq-select.hbs

<select
  onchange={{action onSelectItem value="target.value"}}
>
	{{#each availableItems
  	key="id"
  	as |item|
  }}
    <option
      value={{item.id}}
		  selected={{is-equal item selectedItem}}
    >
      {{item.label}}
    </option>
  {{/each}}
</select>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {},
    "EXTEND_PROTOTYPES": false
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}