New Twiddle

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  actions: {
  	submit(text) {
      Ember.$('#test').append(text);
    },
  	'submit-delayed': function(text) {
      setTimeout(function() {
      	Ember.$('#test').append(text);
      }, 1000);
    } 
  }
});

controllers.application.js

import Ember from 'ember';

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

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<span id="test">Message: </span>
{{my-component}}
<br>
<br>

templates.components.my-component.hbs

<button {{action 'submit' '<b>You clicked on me</b>'}}>Click me</button>

<button {{action 'submit-delayed' '<b>You clicked on me (submit delayed)</b>'}}>Click me (submit delayed)</button>

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-template-compiler": "2.9.0",
    "ember-testing": "2.9.0"
  },
  "addons": {}
}