Undefined equality check

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  aPropertyThatsFalsey: 'NOT_CTA_BOTTOM',
  aPropertyThatsTruthy: 'CTA_BOTTOM',
  
  init() {
	  this._super(...arguments);
  
    this.setProperties({
			undefinedEx: this.undefinedExample(),
      falseEx: this.falseExample(),
      trueEx: this.trueExample(),
    });
  },
  
  undefinedExample() {
    return this.get('aPropertyThatDoesntExist.thisForsureDoesntExist.andThisAbsolutlyDoesntExist') === 'CTA_BOTTOM';
  },
                                       
  falseExample() {
    return this.get('aPropertyThatsFalsey') === 'CTA_BOTTOM';
  },
    
  trueExample() {
    return this.get('aPropertyThatsTruthy') === 'CTA_BOTTOM';
  },
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>
<ul>
  <li>Undefined example: {{undefinedEx}}</li>
  <li>False example: {{falseEx}}</li>
  <li>True Example: {{trueEx}}</li>
</ul>

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"
  }
}