Multi-Yielding Component

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://imgur.com/9RdS8pH"><img src="https://i.imgur.com/9RdS8pH.png" title="source: imgur.com" /></a>

</div>

templates.components.foo-content.hbs

{{yield}}

templates.components.foo-wrapper.hbs

<div class="foo-wrapper">
  <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>
</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"
  }
}