John Holland <jbholl...@gmail.com> writes: Hi John,
> If I want to get the last n elements of a list or vector I am doing > the following: > > (reverse (take n (reverse thelist))) > > Is there a better way to do this? For vectors, you can do that much more efficiently using subvec: (subvec my-vec (- (count vec) n)) For all sequential collections (lists, vectors, and sequences), I think this should be better: (drop (- (count my-seq) n) my-seq) That's because lists, vectors, seqs (with the exception of lazy seqs) usually implement the Counted abstraction meaning that (count coll) is a constant time operation. Bye, Tassilo -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
