Angular: Empty Fiddle

http://angularjs.org/

HTML

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.5/angular.min.js"></script>
<div ng-controller="MyCtrl">
  <button ng-click="clickme()">click me</button>

</div>

JavaScript

var myApp = angular.module('myApp', []);

myApp.controller('MyCtrl', function MyCtrl($scope, $interval) {

  $scope.clickme = function() {
    var i = 0;

    function lerp() {
      alert(i++);
    }
    
    function fin(){
    	alert ("all done!")
    }

    $interval(lerp, 500, 5);
  }

});