<!DOCTYPE html>
<html>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<body ng-app="">
<p>Click the button:</p>
<button ng-click="count = count + 1" ng-init="count=0">OK</button>
<p>The button has been clicked {{count}} times.</p>
<p>This example increases the value of the variable "count" every time you click the button.</p>
</body>
</html>