New Twiddle

components.my-component.js

import Ember from 'ember';

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

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
 

});

controllers.conversation.js

import Ember from 'ember';

export default Ember.Controller.extend({
  
  conversation: Ember.Object.create(),
  
  actions: {
    changeConversation() {
      this.set('conversation', Ember.Object.create());
    }
  }
});

controllers.topcard.js

import Ember from 'ember';

export default Ember.Controller.extend({
  
  actions: {
    back() {
      history.back();
    }
  }
});

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('conversation', { path: '/' });
  this.route('topcard');
});

export default Router;

routes.index.js

import Ember from 'ember';

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

routes.topcard.js

import Ember from 'ember';

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

templates.application.hbs

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

{{#link-to "conversation"}}
Conversation
{{/link-to}}


{{#link-to "topcard"}}
Go to topcard
{{/link-to}}
<br>
<br>

templates.components.my-component.hbs

My Component has conversation {{conversation}}

templates.conversation.hbs

{{my-component conversation=conversation}}

<button {{action "changeConversation"}}>
Update Conversation
</button>

templates.topcard.hbs

You're now on topcard page!

<button {{action "back"}}>Go back!</button>

twiddle.json

{
  "version": "0.10.6",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.9.0",
    "ember-data": "2.9.0",
    "ember-template-compiler": "2.9.0",
    "ember-testing": "2.9.0"
  },
  "addons": {}
}