arrayDidChange---need to be completed

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
content: [],
value: '',

didUpdateAttrs(oldAttrs, newAttrs) {
	this._super(...arguments);
	let oldValue = (oldAttrs.value || {}).value;
	let newValue = (newAttrs.value || {}).value;
	let oldContent = (oldAttrs.content || {}).value;
	let newContent = (newAttrs.content || {}).value;
	console.log('value', oldValue !== newValue);
	console.log('content', oldContent !== newContent);
	
}
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
	value: 'fun',
	model: [1,2,3],
	actions: {
    addOrRemove() {
		this.set('value', Math.floor(Math.random()*10));	this.get('model').pushObject(Math.floor(Math.random()*10));
	
    }
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{my-component value=value content=content}}
<hr>
<button {{action 'addOrRemove'}}>Add or Remove </button>
{{outlet}}
<br>
<br>

templates.components.my-component.hbs

Hai - {{value}} -- {{content.length}}
{{yield}}

twiddle.json

{
  "version": "0.10.6",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.9.0",
    "ember-data": "2.9.0",
    "ember-template-compiler": "2.9.0",
    "ember-testing": "2.9.0"
  },
  "addons": {}
}