title: Why when I'm using `*ngIf` and `*ngFor` on same element, `*ngFor` add null item to array which I'm iterating?
body: <p><a href="http://i.stack.imgur.com/QbKB3.png" rel="nofollow">Template</a>
  ,
  <a href="http://i.stack.imgur.com/99QbC.png" rel="nofollow">View</a>.
  But if i change *ngIf directive to [hidden] property, it looks nice, and there is no null item.</p>