New Twiddle

components.x-y.js

import Ember from 'ember';

export default Ember.Component.extend({
  updates: 0,
  
  didUpdateAttrs() {
  	this._super(...arguments);
    this.incrementProperty('updates');
  }
  
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  vikus: [{ id: 1 }, { id: 2 } ],
  eric: { age: 151 },
  
  ob: Ember.observer('vikus', function() {
    console.log('Observer');
    this.incrementProperty('eric.age');
  }),
  
  actions: {
    doIt() {
      let a = this.get('vikus.firstObject');
      console.log(a);
      Ember.set(a, 'id', new Date());
      this.notifyPropertyChange('vikus');
    }
  }
});

templates.application.hbs

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

{{eric.age}}
<br>
<br>
<button {{action 'doIt'}}>Hola Radiola</button>

{{x-y model=vikus}}

templates.components.x-y.hbs

{{yield}}

{{model.firstObject.id}}

<br>

Updates: {{updates}}

twiddle.json

{
  "version": "0.10.7",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.0",
    "ember-data": "2.10.0",
    "ember-template-compiler": "2.10.0",
    "ember-testing": "2.10.0"
  },
  "addons": {}
}