title: Force update *ngFor Angular 2
body: <p>For my app I need to force update the *ngFor component.</p>
  
  <p>Any way to force update it from my code for example with a updateList function?</p>
  
  <p>I'm using a firebasepipe to get the child_added event to update the ngfor. I need to remove an entry and add an entry at the same time but it only updates things that get added.</p>
  
  <pre><code>&lt;li *ngFor="#quote of firebaseUrl | firebaseevent:'child_added'"&gt; &lt;strong&gt;"{{quote.text}}"&lt;/strong&gt; &lt;/li&gt;
  </code></pre>