New Twiddle

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
});

components.sortable-table-body.js

import Ember from 'ember';

export default Ember.Component.extend({
});

components.sortable-table-header.js

import Ember from 'ember';

export default Ember.Component.extend({
  name: 'Feather',
  
  click() {
  	alert('hi');
  }
});

components.sortable-table.js

import Ember from 'ember';

export default Ember.Component.extend({
  name: 'table',
  
  actions: changeName() {
  	console.log('hi')
  }
});

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}}
<br>
<br>
{{#sortable-table as |table|}}
	{{table.header}} 
  {{table.body}}
  {{table.footer}}
{{/sortable-table}}

<br>
<br>

templates.components.my-component.hbs

{{yield}}

templates.components.sortable-table-body.hbs

I'm body
{{yield}}

templates.components.sortable-table-header.hbs

I am a header
{{yield}}

templates.components.sortable-table.hbs

Table name: {{ name }}

{{yield (hash
		header=(component 'sortable-table-header')
    body=(component 'sortable-table-body')
    )
}}

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": {}
}