New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  globalScope: 'cid',
  actions: {
 		changed(value) {
      this.set('globalScope', value)
    }
	}
});

helpers.is-equal.js

import Ember from 'ember';

export function isEqual(params/*, hash*/) {
  console.log(params)
  return params[0] === params[1];
}

export default Ember.Helper.helper(isEqual);

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<input type="radio" 
			 name="global"
			 checked={{is-equal globalScope "global"}}
       oninput={{action "changed" value="target.value"}}> Global
    <input type="radio" name="global" checked={{is-equal globalScope "cid"}}> CID
<br>
<br>

twiddle.json

{
  "version": "0.8.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.5.1",
    "ember-data": "2.5.2",
    "ember-template-compiler": "2.5.1"
  }
}