Multi-Yielding Component

components.foo-wrapper.js

import Ember from 'ember';

export default Ember.Component.extend({
  classNames: ['foo-wrapper']
});

controllers.application.js

import Ember from 'ember';

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

styles.app.css

.foo-wrapper {
  background-color: #0000bb;
  color: white;
  padding: 10px;
}

.foo-wrapper__foo-a {
  background-color: red;
  color: white;
  margin: 10px;
  padding: 10px;
}

.foo-wrapper__foo-b {
  background-color: yellow;
  color: black;
  margin: 10px;
  padding: 10px;
}

.foo-wrapper__foo-c {
  background-color: green;
  color: white;
  margin: 10px;
  padding: 10px;
}

img {
  max-width: 100%;
}

templates.application.hbs

<div class="hack container">
  <h1>Example</h1>
  {{#foo-wrapper as |foo|}}
    {{#foo.a}}This is the Foo A component{{/foo.a}}
    {{#foo.b}}This is the Foo B component{{/foo.b}}
    {{#foo.c}}This is the Foo C component{{/foo.c}}
  {{/foo-wrapper}}

  <h1>Output</h1>
  <a href="https://i.imgur.com/58x5ais.png">
    <img src="https://i.imgur.com/58x5ais.png" title="source: imgur.com">
  </a>
</div>

templates.components.foo-content.hbs

{{yield}}

templates.components.foo-wrapper.hbs

<div class="foo-wrapper__foo-a">
  {{yield (hash a=(component "foo-content"))}}
</div>
<div class="foo-wrapper__foo-b">
  {{yield (hash b=(component "foo-content"))}}
</div>
<div class="foo-wrapper__foo-c">
  {{yield (hash c=(component "foo-content"))}}
</div>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "hack_css": "https://cdnjs.cloudflare.com/ajax/libs/hack/0.8.0/hack.css",
    "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"
  }
}