NSMutableDictionary with single key holding many values in Objective-C programming?

It seems like you are using code as the key and you want to represent multiple values based on code . In that case, you should either.

If you are really adamant about storing objects in a dictionary, and if you are dealing with strings, you could always append all of your strings together separated by commas, and then when you retrieve the object from the key, you'll have all your objects in a quasi-csv format! You can then easily parse that string into an array of objects.

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