diff --git a/dist/ngCart.js b/dist/ngCart.js
index ce93e6b..80c8509 100644
--- a/dist/ngCart.js
+++ b/dist/ngCart.js
@@ -42,7 +42,7 @@ angular.module('ngCart', ['ngCart.directives'])
 
             var inCart = this.getItemById(id);
 
-            if (typeof inCart === 'object'){
+            if (angular.isObject(inCart)){
                 //Update quantity of an item if it's already in the cart
                 inCart.setQuantity(quantity, false);
                 $rootScope.$broadcast('ngCart:itemUpdated', inCart);
@@ -318,7 +318,7 @@ angular.module('ngCart', ['ngCart.directives'])
 
             set: function (key, val) {
 
-                if (val === undefined) {
+                if (angular.isUndefined(val) {
                     $window.localStorage.removeItem(key);
                 } else {
                     $window.localStorage.setItem( key, angular.toJson(val) );
@@ -334,179 +334,179 @@ angular.module('ngCart', ['ngCart.directives'])
     }])
 
     .value('version', '1.0.0');
-;'use strict';
-
-
-angular.module('ngCart.directives', ['ngCart.fulfilment'])
-
-    .controller('CartController',['$scope', 'ngCart', function($scope, ngCart) {
-        $scope.ngCart = ngCart;
-    }])
-
-    .directive('ngcartAddtocart', ['ngCart', function(ngCart){
-        return {
-            restrict : 'E',
-            controller : 'CartController',
-            scope: {
-                id:'@',
-                name:'@',
-                quantity:'@',
-                quantityMax:'@',
-                price:'@',
-                data:'='
-            },
-            transclude: true,
-            templateUrl: function(element, attrs) {
-                if ( typeof attrs.templateUrl == 'undefined' ) {
-                    return 'template/ngCart/addtocart.html';
-                } else {
-                    return attrs.templateUrl;
-                }
-            },
-            link:function(scope, element, attrs){
-                scope.attrs = attrs;
-                scope.inCart = function(){
-                    return  ngCart.getItemById(attrs.id);
-                };
-
-                if (scope.inCart()){
-                    scope.q = ngCart.getItemById(attrs.id).getQuantity();
-                } else {
-                    scope.q = parseInt(scope.quantity);
-                }
-
-                scope.qtyOpt =  [];
-                for (var i = 1; i <= scope.quantityMax; i++) {
-                    scope.qtyOpt.push(i);
-                }
-
-            }
-
-        };
-    }])
-
-    .directive('ngcartCart', [function(){
-        return {
-            restrict : 'E',
-            controller : 'CartController',
-            scope: {},
-            templateUrl: function(element, attrs) {
-                if ( typeof attrs.templateUrl == 'undefined' ) {
-                    return 'template/ngCart/cart.html';
-                } else {
-                    return attrs.templateUrl;
-                }
-            },
-            link:function(scope, element, attrs){
-
-            }
-        };
-    }])
-
-    .directive('ngcartSummary', [function(){
-        return {
-            restrict : 'E',
-            controller : 'CartController',
-            scope: {},
-            transclude: true,
-            templateUrl: function(element, attrs) {
-                if ( typeof attrs.templateUrl == 'undefined' ) {
-                    return 'template/ngCart/summary.html';
-                } else {
-                    return attrs.templateUrl;
-                }
-            }
-        };
-    }])
-
-    .directive('ngcartCheckout', [function(){
-        return {
-            restrict : 'E',
-            controller : ('CartController', ['$rootScope', '$scope', 'ngCart', 'fulfilmentProvider', function($rootScope, $scope, ngCart, fulfilmentProvider) {
-                $scope.ngCart = ngCart;
-
-                $scope.checkout = function () {
-                    fulfilmentProvider.setService($scope.service);
-                    fulfilmentProvider.setSettings($scope.settings);
-                    fulfilmentProvider.checkout()
-                        .success(function (data, status, headers, config) {
-                            $rootScope.$broadcast('ngCart:checkout_succeeded', data);
-                        })
-                        .error(function (data, status, headers, config) {
-                            $rootScope.$broadcast('ngCart:checkout_failed', {
-                                statusCode: status,
-                                error: data
-                            });
-                        });
-                }
-            }]),
-            scope: {
-                service:'@',
-                settings:'='
-            },
-            transclude: true,
-            templateUrl: function(element, attrs) {
-                if ( typeof attrs.templateUrl == 'undefined' ) {
-                    return 'template/ngCart/checkout.html';
-                } else {
-                    return attrs.templateUrl;
-                }
-            }
-        };
-    }]);
-;
-angular.module('ngCart.fulfilment', [])
-    .service('fulfilmentProvider', ['$injector', function($injector){
-
-        this._obj = {
-            service : undefined,
-            settings : undefined
-        };
-
-        this.setService = function(service){
-            this._obj.service = service;
-        };
-
-        this.setSettings = function(settings){
-            this._obj.settings = settings;
-        };
-
-        this.checkout = function(){
-            var provider = $injector.get('ngCart.fulfilment.' + this._obj.service);
-              return provider.checkout(this._obj.settings);
-
-        }
-
-    }])
-
-
-.service('ngCart.fulfilment.log', ['$q', '$log', 'ngCart', function($q, $log, ngCart){
-
-        this.checkout = function(){
-
-            var deferred = $q.defer();
-
-            $log.info(ngCart.toObject());
-            deferred.resolve({
-                cart:ngCart.toObject()
-            });
-
-            return deferred.promise;
-
-        }
-
- }])
-
-.service('ngCart.fulfilment.http', ['$http', 'ngCart', function($http, ngCart){
-
-        this.checkout = function(settings){
-            return $http.post(settings.url,
-                { data: ngCart.toObject(), options: settings.options});
-        }
- }])
-
-
-.service('ngCart.fulfilment.paypal', ['$http', 'ngCart', function($http, ngCart){
-
-
-}]);
+;'use strict';
+
+
+angular.module('ngCart.directives', ['ngCart.fulfilment'])
+
+    .controller('CartController',['$scope', 'ngCart', function($scope, ngCart) {
+        $scope.ngCart = ngCart;
+    }])
+
+    .directive('ngcartAddtocart', ['ngCart', function(ngCart){
+        return {
+            restrict : 'E',
+            controller : 'CartController',
+            scope: {
+                id:'@',
+                name:'@',
+                quantity:'@',
+                quantityMax:'@',
+                price:'@',
+                data:'='
+            },
+            transclude: true,
+            templateUrl: function(element, attrs) {
+                if ( angular.isUndefined(attrs.templateUrl) ) {
+                    return 'template/ngCart/addtocart.html';
+                } else {
+                    return attrs.templateUrl;
+                }
+            },
+            link:function(scope, element, attrs){
+                scope.attrs = attrs;
+                scope.inCart = function(){
+                    return  ngCart.getItemById(attrs.id);
+                };
+
+                if (scope.inCart()){
+                    scope.q = ngCart.getItemById(attrs.id).getQuantity();
+                } else {
+                    scope.q = parseInt(scope.quantity);
+                }
+
+                scope.qtyOpt =  [];
+                for (var i = 1; i <= scope.quantityMax; i++) {
+                    scope.qtyOpt.push(i);
+                }
+
+            }
+
+        };
+    }])
+
+    .directive('ngcartCart', [function(){
+        return {
+            restrict : 'E',
+            controller : 'CartController',
+            scope: {},
+            templateUrl: function(element, attrs) {
+                if ( angular.isUndefined(attrs.templateUrl) ) {
+                    return 'template/ngCart/cart.html';
+                } else {
+                    return attrs.templateUrl;
+                }
+            },
+            link:function(scope, element, attrs){
+
+            }
+        };
+    }])
+
+    .directive('ngcartSummary', [function(){
+        return {
+            restrict : 'E',
+            controller : 'CartController',
+            scope: {},
+            transclude: true,
+            templateUrl: function(element, attrs) {
+                if ( angular.isUndefined(attrs.templateUrl) ) {
+                    return 'template/ngCart/summary.html';
+                } else {
+                    return attrs.templateUrl;
+                }
+            }
+        };
+    }])
+
+    .directive('ngcartCheckout', [function(){
+        return {
+            restrict : 'E',
+            controller : ('CartController', ['$rootScope', '$scope', 'ngCart', 'fulfilmentProvider', function($rootScope, $scope, ngCart, fulfilmentProvider) {
+                $scope.ngCart = ngCart;
+
+                $scope.checkout = function () {
+                    fulfilmentProvider.setService($scope.service);
+                    fulfilmentProvider.setSettings($scope.settings);
+                    fulfilmentProvider.checkout()
+                        .success(function (data, status, headers, config) {
+                            $rootScope.$broadcast('ngCart:checkout_succeeded', data);
+                        })
+                        .error(function (data, status, headers, config) {
+                            $rootScope.$broadcast('ngCart:checkout_failed', {
+                                statusCode: status,
+                                error: data
+                            });
+                        });
+                }
+            }]),
+            scope: {
+                service:'@',
+                settings:'='
+            },
+            transclude: true,
+            templateUrl: function(element, attrs) {
+                if ( angular.isUndefined(attrs.templateUrl) ) {
+                    return 'template/ngCart/checkout.html';
+                } else {
+                    return attrs.templateUrl;
+                }
+            }
+        };
+    }]);
+;
+angular.module('ngCart.fulfilment', [])
+    .service('fulfilmentProvider', ['$injector', function($injector){
+
+        this._obj = {
+            service : undefined,
+            settings : undefined
+        };
+
+        this.setService = function(service){
+            this._obj.service = service;
+        };
+
+        this.setSettings = function(settings){
+            this._obj.settings = settings;
+        };
+
+        this.checkout = function(){
+            var provider = $injector.get('ngCart.fulfilment.' + this._obj.service);
+              return provider.checkout(this._obj.settings);
+
+        }
+
+    }])
+
+
+.service('ngCart.fulfilment.log', ['$q', '$log', 'ngCart', function($q, $log, ngCart){
+
+        this.checkout = function(){
+
+            var deferred = $q.defer();
+
+            $log.info(ngCart.toObject());
+            deferred.resolve({
+                cart:ngCart.toObject()
+            });
+
+            return deferred.promise;
+
+        }
+
+ }])
+
+.service('ngCart.fulfilment.http', ['$http', 'ngCart', function($http, ngCart){
+
+        this.checkout = function(settings){
+            return $http.post(settings.url,
+                { data: ngCart.toObject(), options: settings.options});
+        }
+ }])
+
+
+.service('ngCart.fulfilment.paypal', ['$http', 'ngCart', function($http, ngCart){
+
+
+}]);