Stackoverflow Question No:42801512

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  object: {foo: 'a', foo2: 'b', foo3: 'c'}
});

helpers.some-helper.js

import Ember from 'ember';

export function someHelper(params/*, hash*/) {
  switch(params[0]) {

    case 'a':
     return { a:21,b:22 }
     break;
    case 'b':
     return { a:21,b:20 }
     break;
    default:
     return { a:2,b:211 } 
  }
}

export default Ember.Helper.helper(someHelper);

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<p>{{get (someHelper object.foo) 'a'}} </p>
<p>{{get (someHelper object.foo2) 'a'}} </p>
<p>{{get (someHelper object.foo3) 'a'}} </p>

<br>
<br>

twiddle.json

{
  "version": "0.11.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.11.0",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.11.0",
    "ember-testing": "2.11.0"
  },
  "addons": {}
}