On Tue, Oct 05, 2010 at 12:07:33AM +0800, Koh Nyap-Hong wrote: > Yes, basically what I want to do with NSPredicate can actually achieved using > the traditionally way of while/for loop. However I was recently impressed by > functional programming way of filtering array/list, I would like to try the > declarative way of filtering array (I know NSPredicate way of filtering is > actually just kind of declarative).
I don't know if this really fits your bill, but if you're just looking for a concise way of manipulating collections, you could also try out the higher-order messaging APIs in EtoileFoundation [0], which allow you to do stuff like this: [[pitches filter] isEqualToString: @"Do"]; [[[pitches filter] description] isEqualToString: @"Do"]; (Note that this requires pitches to be a mutable collection) Cheers, Niels -- [0] http://svn.gna.org/svn/etoile/trunk/Etoile/Frameworks/EtoileFoundation _______________________________________________ Discuss-gnustep mailing list Discuss-gnustep@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnustep
