Sort by pubDate

gistfile1.txt

#import <Foundation/Foundation.h>

int main(int argc, char *argv[]) {
	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
	
	NSDictionary *one = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithInt:1], @"pubDate", nil];
	NSDictionary *two = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithInt:2], @"pubDate", nil];
	NSDictionary *three = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithInt:3], @"pubDate", nil];
	
	NSArray *array = [NSArray arrayWithObjects:three, one, two, nil];
	
	NSSortDescriptor *sortDescriptor = [[[NSSortDescriptor alloc] initWithKey:@"pubDate" ascending:YES] autorelease];
	
	NSLog(@"%@", [array sortedArrayUsingDescriptors:[NSArray arrayWithObject:sortDescriptor]]);
	
	[pool drain];
}