So, you need to give it a function which takes an key and a collection. (fn [k coll] ...)
It should return true if two things are true. That the collection _contains_ the key, and the key is _nil_ Enjoy! /Kevin On Wed, Feb 29, 2012 at 7:15 AM, weiyongq <weiyo...@gmail.com> wrote: > "A nil key " > http://www.4clojure.com/problem/134 > l look it no Elementary.please give me some help. > > -- > 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 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
