Computed Promises

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Computed Promises',
  
  _foobar: Ember.on('init', function() {
    Promise.resolve(2)
    .then(value => {
      let result = value + 1;
      this.set('result', result);
    });
  }),
  
  result: 0
  
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
result: {{result}}
{{outlet}}
<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"
  }
}