Simple dynamic component

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName:'Ember Twiddle',
  
  componentToRender: 'first-component',
  
  actions: {
    changeRenderedComponent() {
      if (this.get('componentToRender') === 'first-component') {
        this.set('componentToRender', 'second-component');
      } else {
        this.set('componentToRender', 'first-component');
      }
    }
  },
});

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
{{component componentToRender name='Sergio'}}
<br>
<button {{action 'changeRenderedComponent'}}>
  Change component
</button>
<br>

first-component.component.js

import Ember from 'ember';

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

first-component.template.hbs

This is first-component
{{name}}

second-component.component.js

import Ember from 'ember';

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

second-component.template.hbs

This is second-component

{{name}}

twiddle.json

{
  "version": "0.5.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.2.0/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember-template-compiler.js"
  }
}