Sort array of objects by their NSDate property

Question

Possible Duplicate:
How to sort an NSMutableArray with custom objects in it?

How does one sort an array of objects by accessing their NSDate properties?

I know one can use [mutableArray sortUsingSelector:@selector(compare:)]; on an array of dates, but how does one do it by accessing a NSDate property on each element in the array, sorting the objects by earliest date to latest date?

Answer 1

Thanks for all the answers, I came across this answer that solved my problem.Check NSGod's answer

Here is the code thanks to user: NSGod:

NSSortDescriptor *dateDescriptor = [NSSortDescriptor
                                 sortDescriptorWithKey:@"startDateTime" 
                                             ascending:YES];
NSArray *sortDescriptors = [NSArray arrayWithObject:dateDescriptor];
NSArray *sortedEventArray = [nodeEventArray
     sortedArrayUsingDescriptors:sortDescriptors];