Ember Array for Joey

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  array: Ember.A([]),
  
  setSomeStuff() {
    this.get('array').pushObjects(['foo', 'bar', 'baz']);
  }
});

components.my-renderer.js

import Ember from 'ember';

export default Ember.Component.extend({
  show(bool) {
    this.set('showComponent', bool);
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}

{{my-renderer}}
<br>
<br>

templates.components.my-component.hbs

<button {{action setSomeStuff}}>Add some stuff to the array</button>

Array contents are...
{{#each array as |item|}}
 {{item}}
{{/each}}

templates.components.my-renderer.hbs

<button {{action show true}}>Show Component</button>
<button {{action show false}}>Hide Component</button>

{{#if showComponent}}
  {{my-component}}
{{/if}}

{{yield}}

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"
  }
}