Tryit Editor v2.9

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<!DOCTYPE html>
<html>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<body ng-app="myApp">
<div ng-controller="myCtrl">
  <p>Write something in the input field:</p>
  <input type="text" ng-change="myFunc()" ng-model="myValue" />
  <p>The input field has changed {{count}} times.</p>
</div>

<script>
  angular.module('myApp', [])
    .controller('myCtrl', ['$scope', function($scope) {
      $scope.count = 0;
      $scope.myFunc = function() {
        $scope.count++;
      };
    }]);
</script>
</body>
</html>