array - push - pop

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  array: [],
  pushObj() {
    this.get('array').pushObject({name: 'name'});
  },
  popObj() {
    this.get('array').popObject();
  },
  push() {
    this.get('array').push({name: 'name'});
  },
  pop() {
    this.get('array').pop();
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>
{{#each array as |obj index|}}
  <div>{{index}}) {{obj.name}}</div>
{{/each}}

<button {{action pushObj}}>pushObject</button>
<button {{action popObj}}>popObject</button>
<button {{action push}}>push</button>
<button {{action pop}}>pop</button>

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"
  }
}