New Twiddle

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName: 'input',
  attributeBindings: ['name', 'value', 'autocomplete'],
  
  autocomplete: 'name',
  onUpdate() {},
  
  input(event) {
    this.onUpdate(event.target.value)
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  actions: {
    submit() {
      this.set('value', '');
      return false;
   }
  }
});

templates.application.hbs

<h1>"{{value}}"</h1>
<br>
<br>
<form {{action "submit" on="submit"}}>
{{my-component value=value onUpdate=(action (mut value))}}
<br>
<button>Submit</button>
</form>
<br>

templates.components.my-component.hbs

{{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"
  }
}