Change local storage for priced items #5
Description
I was porting your C# code to F# when I've realized that something didn't add up and most notably how merging quantities is achieved in the current implementation:
Not only there is a redundant check as part of the current implementation:
but actually considering how data are stored:
I think it would be relevant to use a map or a dictionary to store the priced items.
It would make the whole consistency check a lot simpler.
Also why bother throwing exceptions when you can add a product when the same product isn't already part of the collection and then merge quantities when it is.
Wdyt?