title: angularjs tab key press prevent default
body: <p>Hi I have a input field that calls the funciton add_plu() when the tab key is pressed down.  Although it works, it moves to the next element of the page (default action for a tab key).</p>
  
  <p>How do I prevent the tab button from it's default behaviour?  Here is my code:</p>
  
  <pre><code>   &lt;input class="order-input-plu form-control" ng-model="order.orderwindow.add_field" ui-keydown="{ 'tab':'add_plu(order.orderwindow.add_field)'}"&gt;
  </code></pre>