I have the following code:
if (typeof $scope.grid.data == 'undefined') {
$scope.grid.data = [];
}
$scope.grid.data.push(result);
I put in the check for undefined but I am still getting an error message from the push saying:
TypeError: Cannot call method 'push' of null
Any advice would be much appreciated
I've always been fine with a simple :
if (!$scope.grid.data) {
$scope.grid.data = [];
}
This should catch it in both situations (null & undefined).
As the error message shows, the object in question is null, not undefined. The two are different values, and the way you're checking will only check for undefined. The best way to check whether an object is undefined or null is to leverage the fact that null and undefined implicitly convert between each other, and do:
if ($scope.grid.data == null) {
