Topics: Cocoapods and Core Data
Question: Should I use [array mutablecopy] or [NSMutableArray arrayFromArray:array] ?
Answer: Both are the same if the array is already made. Stylistically, prefer the latter.
Question: Is order maintained in Core Data?
Answer: No, if you want to maintain order, add an attribute like createdAt and use an NSSortDescriptor to order by created time.