I have two NSArrays:
NSArray *wants = [NSArray arrayWithObjects:
@"apples",
@"oranges",
@"pineapple",
@"mango",
@"strawberries",
nil];
NSArray *needs = [NSArray arrayWithObjects:
@"apples",
@"pineapple",
@"strawberries",
nil];
And I want to XOR
them. Something like wants - needs
so that what I have left is
[NSArray arrayWithObjects:
@"oranges",
@"mango",
nil];
I would normally go through some heavy looping, but I am sure there is a more practical way. What should I do instead?
Something like this?
NSMutableArray *array = [NSMutableArray arrayWithArray:wants];
[array removeObjectsInArray:needs];