New Twiddle

application.controller.js

import Ember from 'ember';
var [ceil,random] = [Math.ceil,Math.random];
export default Ember.Controller.extend({
  appName:'Ember Twiddle',
  url: "http://placehold.it/350x200",
  sideClass:"sideClass",
  secondClass: "moreInfo"
});

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<img src="{{url}}"/>
<div id="side" class="{{sideClass}} {{secondClass}}"> Info </div>

<br>
<br>

twiddle.json

{
  "version": "0.4.11",
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.9/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/1.13.11/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.9/ember-template-compiler.js"
  }
}