notEmpty Test

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Not Empty Example',
  message: Ember.Object.create(),
  emptyMessage: null,
  
  hasSomeModel: Ember.computed.notEmpty('message'),
  hasEmptyModel: Ember.computed.notEmpty('emptymessage')
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<dl>
<dt>SomeModel notEmpty?</dt>
<dd>{{hasSomeModel}}</dd>
<dt>emptyModel notEmpty?</dt>
<dd>{{hasEmptyModel}}</dd>
</dl>
<br>
<br>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}