When I know I'm dealing with a counted collection, like vector, then for performance I test for empty with (zero? (count v)).
It would be nice if empty? were more polymorphic, but I'm not sure how that would affect performance - might make things worse for the common case. Certainly in the general case, the current implementation of empty? is the only real way to do it. If you have an infinite sequence, a count-based version would run forever. -- 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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
