On Sep 21, 2016, at 21:47 , Jeff Evans <jev...@ars-nova.com> wrote: > > Of course, so [[NSArray alloc]init] is actually useless; I hadn't thought of > that. No one would ever declare an array that way.
Just continuing my nitpicking tour of this thread: It isn’t useless. Sometimes you really want an empty array. For example, there are Cocoa APIs that have a parameter that’s an array of (say) options. In some cases, an API might accept nil as meaning “no options”, but in others it might throw an exception. It’s safer to pass [[NSArray alloc] init], or [NSArray array], or @[]. Another example where it might be needed is if you’re using “arrayByAddingObject:” or “arrayByAddingObjectsFromArray:” to construct an array, and you might want to start, conditionally, from an existing array or an empty array. So it’s degenerate perhaps, but not exactly useless. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
