On Wed, Nov 5, 2008 at 12:56 PM, Stuart Halloway <[EMAIL PROTECTED]> wrote: > > (1) Is there a simpler way to define pairwise, which takes an existing > sequence and then returns its items a pair at a time? > > (defn pairwise [& seq] > (map vector (take-nth 2 seq) (take-nth 2 (rest seq))))
The built-in (partition) function does this, no? (partition 2 my-seq) Best, Graham > > (2) When writing a function like pairwise, are there any bright-line > rules about whether to use variable arity? > > Cheers, > Stuart > > > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
