New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  vendorOptions: Ember.computed('', function() {
    return ['1','2','3'];
  })
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}

    <select name="" id="">
{{#each vendorOptions as |option|}}

<option value={{option}}>{{option}}</option>
{{/each}}
    </select>
<br>
<br>

twiddle.json

{
  "version": "0.10.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "1.13.13",
    "ember-data": "1.13.15",
    "ember-template-compiler": "1.13.13"
  },
  "addons": {}
}