<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Example - example-ng-keydown</title>
  

  <script src="../../../angular.min.js"></script>
  

  
</head>
<body ng-app="">
  <input ng-keydown="count = count + 1" ng-init="count=0">
key down count: {{count}}
</body>
</html>