New Twiddle

application.controller.js

import Ember from 'ember';

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

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
When clicked on the document u could see in the console two event handlers registered by two instances of `my-component`. Upon clicking one of the  `Remove Handler` function, it removes both the handlers
<br>
<br>
{{outlet}}
{{#my-component}}
Component 1
{{/my-component}}
<br>
<br>
{{#my-component}}
Component 2
{{/my-component}}

my-component.component.js

import Ember from 'ember';

export default Ember.Component.extend({

  callback(event) {
    let component = event.data;
    console.log(`document clicked and handler registered by ${component.elementId}`);
    
  },
  init() {
    this._super(...arguments);
    $(window.document).on(`click`,this, this.callback);     console.log(`GUID => ${this.callback.guid} for callback function assigned by jquery, caller component ${this.elementId}`);
  },
  
  actions: {
  	removeEventHandler() {
      // removing event handler
			$(window.document).off('click',this.callback);
		}
	}
});

my-component.template.hbs

{{yield}}

<button {{action "removeEventHandler"}}>Remove Handler</button>

twiddle.json

{
  "version": "0.6.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.3.1/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.3.3/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember-template-compiler.js"
  }
}