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What’s the difference?
In my context, I need to be able to dynamically add to and remove objects. The user clicks on rows of a table that check on and off and thus add or remove the referenced object from the list.
A wild guess is that array has indexed items while set has no indexes?
An
NSSet/NSMutableSetdoesn’t keep items in any particular order. AnNSArray/NSMutableArraydoes store the items in a particular order. If you’re building a table view, you should definitely use an array as your data source of choice.