AngularJS watch array of objects for data change

Question

I\'m implementing a shopping cart and want to store the data in localStorage. I want to watch the variable $scope.cart for change so that I can update the local

Answer 1

try to change

$scope.$watch($scope.cart, $scope.updateCart(), true);

to

$scope.$watch('cart', $scope.updateCart(), true);

$watch only evaluate string or function parameter in its first argument