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{
  "version": "0.10.4",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.7.0",
    "ember-data": "2.7.0",
    "ember-template-compiler": "2.7.0"
  },
  "addons": {}
}

<h1>Welcome to {{appName}}</h1>
<br>
{{val.a}}|
{{val.b}}|
{{val.c}}
<br>
<button {{action 'setProps'}}>Compute</button>
{{outlet}}
<br>
<br>

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  val: null,
  actions: {
    setProps() {
      var num = Math.ceil(Math.random()*10); 
    	var a = Ember.Object.create({a:1});
      this.set('val', a);
      a.setProperties({
        b:num,
        c:num+1
      });
    }
  }
});