Test filterby for non-empty fields

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  items: [{name:'pepe', dog: 'firulais'},
          {name: 'otro', dog: 'un dog'},
          {name:'albert'},
         ],
  itemsFiltered: Ember.computed.filterBy('items','dog')
});

controllers.application.js

import Ember from 'ember';

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

templates.application.hbs

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

{{my-component}}

templates.components.my-component.hbs

{{yield}}
{{#each itemsFiltered as |item|}}
{{item.name}}
{{/each}}

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"
  }
}