Setting Up Changeset

controllers.application.js

import Ember from 'ember';
import Changeset from 'ember-changeset';
import lookupValidator from 'ember-changeset-validations';
import {
  validateFormat
} from 'ember-changeset-validations/validators';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  isValid: undefined,
  init() {
  	this._super(...arguments);
    let validations = {
      email: validateFormat({ type: 'email' })
    };
		let changeset = new Changeset({}, lookupValidator(validations), validations);

		changeset.validate().then(() => {
      this.set('isValid', changeset.get('isValid'));
    });
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>
{{#if isValid}}
<span style="background-color:green;">Valid</span>
{{else}}
	<span style="background-color:red;"> Invalid</span>
{{/if}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1",
    "ember-changeset": "*",
    "ember-changeset-validations": "*"
  }
}