New Twiddle

components.a-a.js

import Ember from 'ember';

export default Ember.Component.extend({
});

controllers.a.js

import Ember from 'ember';

export default Ember.Controller.extend({
  time: Ember.computed(function(){
  	return Date.now();
  }),
  actions: {
   gotoB() {
   	  this.set('time',Date.now());
      this.transitionToRoute('b');
   } 
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

controllers.b.js

import Ember from 'ember';

export default Ember.Controller.extend({
});

router.js

import Ember from 'ember';
import config from './config/environment';

const Router = Ember.Router.extend({
  location: 'none',
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('a', { path: '/a' });
  this.route('b', { path: '/b' });
});

export default Router;

routes.a.js

import Ember from 'ember';

export default Ember.Route.extend({
});

routes.b.js

import Ember from 'ember';

export default Ember.Route.extend({
});

templates.a.hbs

<div {{action 'gotoB'}}>to B</div>
{{time}}
{{a-a time=time}}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
{{#link-to 'a'}}A{{/link-to}}
{{#link-to 'b'}}B{{/link-to}}
<br>
<br>

templates.components.a-a.hbs

{{yield}}
time: {{time}}

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"
  }
}