findBy wtf

controllers.application.js

import Ember from 'ember';
import { findBy } from 'ember-awesome-macros';

const obj = {key:1};

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  array: [obj],
  obj,
  firstElem: findBy('array','key',1),
});

templates.application.hbs

<code>firstElem.constructor:</code> {{firstElem.constructor}}
<br>
<code>obj.constructor:</code> {{obj.constructor}}

twiddle.json

{
  "version": "0.13.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.16.2",
    "ember-template-compiler": "2.16.2",
    "ember-testing": "2.16.2"
  },
  "addons": {
    "ember-data": "2.16.3",
    "ember-awesome-macros": "0.43.0"
  }
}