title: Angular 2 - ngFor display last 3 items in array
body: <p>got an array with many projects and i want to display the last 3 projects.</p>
  
  <p>got in my html</p>
  
  <pre><code>          &lt;li *ngFor="let project of projects;"&gt;
              &lt;h2&gt;{{ project.name }}&lt;/h2&gt;
              &lt;p&gt;{{ project.meta_desciption }}&lt;/p&gt;
            &lt;/li&gt;
  </code></pre>
  
  <p>it s displaying all the project now (over 20).
  how can i display only the last 3?
  I think i need to use "last" somewere in my code, but can't figure it out
  <a href="https://angular.io/docs/ts/latest/api/common/index/NgFor-directive.html" rel="nofollow">https://angular.io/docs/ts/latest/api/common/index/NgFor-directive.html</a></p>