New Twiddle

application.controller.js

import Ember from 'ember';

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

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>
{{erik-comp}}

erik-comp.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  showText: true,
  isChecked: false,
  actions: {
    toggleText: function(text){
      this.toggleProperty('showText');
      alert(text);
    }
  }
});

erik-comp.template.hbs

{{#if showText}}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean dui est, auctor sit amet augue vel, mattis maximus libero. Praesent feugiat ex justo, vitae convallis nulla venenatis quis. 
{{/if}}<br>
{{input type="checkbox" name="isChecked" checked=isChecked action="toggleText" on="key-press"}}
<button {{action "toggleText" isChecked}}>{{if showText "Hide Text" "Show Text"}}</button>

twiddle.json

{
  "version": "0.4.11",
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.9/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/1.13.11/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.9/ember-template-compiler.js"
  }
}