title: AngularJs Multiple Class in ng-class
body: <p>I want to use multiple class in ng-class.These classes comes from my directive.</p>
  
  <p>I need something like this;</p>
  
  <pre><code>ng-class="item.test1 item.test2"
  </code></pre>
  
  <p><strong>test1</strong> and <strong>test2</strong> are my css classes.</p>
  
  <p>When i call like this ,it does not work.</p>
  
  <p>How can i call multiple class using ng-class?</p>