Layout Test

components.base-profile.js

import Ember from 'ember';
import layout from '../templates/components/extra-profile';

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

controllers.application.js

import Ember from 'ember';

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

templates.application.hbs

{{base-profile name="Person McPerson" company="Companyface"}}

templates.components.base-profile.hbs

<h2>{{name}}</h2>
<h3>{{company}}</h3>

templates.components.extra-profile.hbs

<h1>Hello!</h1>
{{yield}}

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-data": "3.4.2"
  }
}