Textarea test

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Text area example',
  modelThing: 'initial copy',

  type: false,

  modelA: {
		copy: 'model a text',
  },

  modelB: {
    copy: 'b b b b b model b text',
  },

  currentModel: Ember.computed('modelA', 'modelB', 'type',function() {
    if (this.get('type')) {
      return this.get('modelA');
    } else {
    	return this.get('modelB');
    }
  }),

  actions: {
  	toggleModel() {
      this.toggleProperty('type');
    },
  },

});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>

{{textarea value=currentModel.copy}}

<hr />

<button {{action 'toggleModel'}}>
  <span>Toggle</span>
</button>

<output>
  <p>{{modelA.copy}}</p>
</output>

<output>
  <p>{{modelB.copy}}</p>
</output>

twiddle.json

{
  "version": "0.13.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.16.2",
    "ember-template-compiler": "2.16.2",
    "ember-testing": "2.16.2"
  },
  "addons": {
    "ember-data": "2.16.3"
  }
}