title: Set new object property on *ngFor Angular 2
body: <p>I have an object some like this:</p>
  
  <pre><code>this.obj = {{name: 'Hello 1'}, {'name': 'Hello 2'}}
  </code></pre>
  
  <p>I'm making a loop through this object on angular 2 (ionic2):</p>
  
  <pre><code>&lt;div class"item" *ngFor="let item as obj"&gt; 
    &lt;span&gt;{{item.name}}&lt;/span&gt;
    &lt;span&gt;{{item.count}}&lt;/span&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p><code>item.count</code> doesn't exists, and, obviously, It will not be rendered in the view. But I need to instanciate this property in the view. In angular 1 I think something like <code>ng-init="item.count = 0"</code> should solve this issue, but It's not enabled in Angular 2.</p>