CODEWITHSUNDEEP
angularjs
TheGPWorx
TheGPWorx

Reputation: 887

Angular copy not working on copying array

It seems that angular.copy() is not properly working on one of the items that I am using it on. Here's the sample code and the screenshot that follows.

    console.log("Copy");
    $scope.traffic_data = traffic_data;
    $scope.total_data = total_data;
    console.log($scope.traffic_data);
    console.log($scope.total_data);

    console.log("Original");
    $rootScope.original_traffic_data = angular.copy($scope.traffic_data);
    $rootScope.original_total_data = angular.copy($scope.total_data);
    console.log($rootScope.original_traffic_data);
    console.log($rootScope.original_total_data);

    console.log("Variable data");
    console.log(total_data);
    console.log("=============");

enter image description here

The problem I am facing is that the 

$rootscope.original_total_data

is not copying the contents of the

$scope.total_data

as seen on the screenshot. I have highlighted the different console logs to differentiate them from one another.

The line

console.log($rootScope.original_total_data);

shows no contents even though I have used angular.copy on that variable. What am I missing here? Please help. Thanks. Also $rootScope is already declared in the controller and it is working for the 

$rootScope.original_traffic_data

so why is it not working for 

$rootScope.original_total_data?

Thanks.

Upvotes: 1

Views: 4083

Answers (1)

Rhumborl
Rhumborl

Reputation: 16609

total_data is an array, whereas traffic_data is an object.

angular.copy() distinguishes between arrays and objects. For objects it will copy all the keys (properties). For arrays, it will only copy the array elements and not any custom properties attached to it - see source code.

If you want to set properties on total_data, you should make it into an object instead. It does not appear to have any indexed values, so this should not be a problem, and it probably should have been an object in the first place.

Upvotes: 2

Related Questions