In Redux, is it necessary to do deep copy

Question

The below object is action.data has a nested object address

{
    name: \'Ben\',
    address: {
        country: \'Australia\',
            


        

Answer 1

The "correct" way to handle updates of nested data is with multiple shallow copies, one for each level of nesting. It's also certainly okay to create a new object that just replaces one field completely, per your first example.

See the Redux docs section on Immutable Update Patterns for some info on how to properly do immutable updates, and also the Redux FAQ entry regarding deep cloning.