On Sun, Nov 30, 2008 at 4:34 AM, Kevin Downey <[EMAIL PROTECTED]> wrote: > (reduce str [\a \b \c]) > (apply str [\a \b \c])
For the record, 'apply str' is significantly faster because 'str' creates a StringBuilder when given 2 or more args, and uses that to build up the string. Using 'reduce' causes this to happen once for each item of the seq (minus one), while 'apply' causes a single StringBuilder to be created and then populated with a tight fn/recur loop. user=> (time (dotimes [_ 100] (apply str long-sequence))) "Elapsed time: 36.130324 msecs" nil user=> (time (dotimes [_ 100] (reduce str long-sequence))) "Elapsed time: 1050.878775 msecs" nil --Chouser --~--~---------~--~----~------------~-------~--~----~ 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 To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
