New Twiddle

components.component-one.js

import Ember from 'ember';

export default Ember.Component.extend({

});

components.component-two.js

import Ember from 'ember';

export default Ember.Component.extend({
  classNameBindings: ['someCssClass:enabled'],
  somecssClass: this.get('isEnabled'),
  actions:{
    myEndComponent(){
       //some code
    }
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  isEnabled: false,
  
  actions:{
    controllerAlert(){
      this.set('isEnabled',true);
    }
  }
});

templates.application.hbs

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

{{component-one componentAlert=(action 'controllerAlert')}}

{{component-two isEnabled=isEnabled}}

templates.components.component-one.hbs

<hr>
<p>Component one</p>

<button {{action componentAlert}}>Component one button</button>

templates.components.component-two.hbs

<hr>
<p>Component two</p>

{{isEnabled}}

twiddle.json

{
  "version": "0.13.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.16.2",
    "ember-template-compiler": "2.16.2",
    "ember-testing": "2.16.2"
  },
  "addons": {
    "ember-data": "2.16.3"
  }
}