Nested Promise Resolve

controllers.application.js

import Ember from 'ember';

const { RSVP } = Ember;

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  singlePromise() {
    return RSVP.resolve('banana');
  },
  
  nestedPromise(otherPromise) {
    return RSVP.resolve(otherPromise);
  },
  
  actions: {
   	clickedSinglePromise() {
      this.singlePromise().then(result => this.set('result', result));
    },
    clickedNestedPromise() {
      const singlePromise = this.singlePromise();
      this.nestedPromise(singlePromise).then(result => this.set('result', result));
    }
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>
<button {{action 'clickedSinglePromise'}}>  Single Promise </button>
<button {{action 'clickedNestedPromise'}}>  Nested Promise </button>
<br>
Result: {{result}}

twiddle.json

{
  "version": "0.11.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.2",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.10.2",
    "ember-testing": "2.10.2"
  },
  "addons": {}
}