Bound change event

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  foobar: 1,
  actions: {
		didChange: function(event){
      this.set('foobar' , 'a' + event.target.value)
      console.log(event);
    }
  }
});

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-component}}
<br>
<br>

templates.components.my-component.hbs

{{yield}}
{{input value=foobar change=(action 'didChange')}}

twiddle.json

{
  "version": "0.9.3",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.5.1",
    "ember-data": "2.5.3",
    "ember-template-compiler": "2.5.1"
  }
}