New Twiddle

components.component-a.js

import Ember from 'ember';

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

components.component-b.js

import Ember from 'ember';

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

controllers.application.js

import Ember from 'ember';
import ExampleObject from '../example-object';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  init() {
    this.set('theObject', new ExampleObject()); 
  },
  
  actions: {
    cancelAction() {
  		this.get('theObject').reset();
		}
  }
});

example-object.js

import Ember from 'ember';

export default Ember.Object.extend({
  init() {
    this.reset();
  },
 
	reset() {
    this.setProperties({
  		name: 'John Connor',
      age: 13,
      role: 'Terminator'
		});
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
{{#component-a cancelAction=(action 'cancelAction') as |a|}}
	{{a.foo name=theObject.name age=theObject.age role=theObject.role}}
{{/component-a}}
<br>
<br>

templates.components.component-a.hbs

{{yield (hash
  foo=(component "component-b")
)}}

<button onclick={{action cancelAction}}>Cancel</button>

templates.components.component-b.hbs

{{yield}}
{{input value=name}}
{{input value=age}}
{{input value=role}}

twiddle.json

{
  "version": "0.11.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.2",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.10.2",
    "ember-testing": "2.10.2"
  },
  "addons": {}
}