Thing

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  typeArray: ['hello', 'hi']
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<p>Hardcoded</p>
<h2>typeArray[0]: {{get typeArray '0'}}</h2>
<h2>typeArray[1]: {{get typeArray '1'}}</h2>
<p>Through #each</p>
{{#each typeArray as |val index|}}
  <h2>typeArray[{{index}}]: {{val}}</h2>
{{/each}}
{{outlet}}

twiddle.json

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