Fix directive + add example

example/main.js

@@ -0,0 +1,50 @@
+(function() {
+	'use strict';
+
+	var app = angular.module('app', []);
+
+	app.controller('listCtrl', function() {
+
+		var arr = [];
+
+		for (var i=0; i<1000; i++) {
+			arr[i] = {
+				title: 'Element ' + i.toString()
+			}
+		}
+
+		this.array = arr;
+
+		this.countWatchers = function() {
+		    var root = angular.element(document.getElementsByTagName('body'));
+
+		    var watchers = [];
+
+		    var f = function (element) {
+		        angular.forEach(['$scope', '$isolateScope'], function (scopeProperty) { 
+		            if (element.data() && element.data().hasOwnProperty(scopeProperty)) {
+		                angular.forEach(element.data()[scopeProperty].$$watchers, function (watcher) {
+		                    watchers.push(watcher);
+		                });
+		            }
+		        });
+
+		        angular.forEach(element.children(), function (childElement) {
+		            f(angular.element(childElement));
+		        });
+		    };
+
+		    f(root);
+
+		    // Remove duplicate watchers
+		    var watchersWithoutDuplicates = [];
+		    angular.forEach(watchers, function(item) {
+		        if(watchersWithoutDuplicates.indexOf(item) < 0) {
+		             watchersWithoutDuplicates.push(item);
+		        }
+		    });
+
+		    console.log(watchersWithoutDuplicates.length);
+		}
+	});
+})();