Exploring AngularJS: handling objects, working with arrays, diving into JSON, and troubleshooting

Generating:

In my Angular application, I utilize $scope.services to store a list of services. This variable holds an array of objects:

$scope.services = [{
    title           : undefined,
    quantity        : undefined,
    pricePerUnit    : undefined,
    priceCalculated : undefined,
    order           : undefined         
}];

To add another object to the array, I simply use the $scope.services.push method.

$scope.services.push({ 
    title           : undefined,
    quantity        : undefined,
    pricePerUnit    : undefined,
    priceCalculated : undefined,
    order           : undefined
});

Everything seems to be working fine up to this point. However, when I receive JSON data from an API in the following format:

{
    someData: "some data",
    services: {
        0: {
            id: 101,
            offer_id: 101,
            title: "some title",
            ...
        },
        1: {
            ...
        }
    }
}

Upon appending the received data to $scope.services using $scope.services = data.services, I encounter an error when trying to utilize $scope.services.push, resulting in:

TypeError: $scope.services.push is not a function.

I am unsure about the cause of this issue. Could it be related to the JSON structure or an array problem? Any insights or suggestions would be greatly appreciated. Thank you for your help.

Answer №1

To handle the fact that services is not an array, you must create a valid array from the response. This can be achieved by looping through the keys of the services object and pushing each value into a new array.

var servicesArray = [];
Object.keys(data.services).forEach(function (key) {
   servicesArray.push(data.services[key]);
}); 
$scope.services = servicesArray;

Answer №2

It appears that the variable you are assigning to $scope.services = data.services may not actually be an array. Make sure to verify that the object from data.services is indeed an array. You can refer to a similar issue that was found (link) which might provide some helpful insights for you.

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