Hi Ruben, What you are missing is that map is the wrong function to use here. Map is lazy, and combining map with something side-effecty like println will lead to confusion.
doseq will give you what you want. Stu Stuart Halloway Clojure/core http://clojure.com > Hi all, > > when I execute the following code: > > (def users (ref [])) > > ;works > (defn print-users [] > (with-query-results res ["select id,username,password from users" ] > > (dorun > (dosync (ref-set users res ) ) > ) > ) > ) > > > and then execute (map #(println %) @users) i get back this: > > ({:id 1, :username rpierich, :password test} > {:id 2, :username ruthpierich, :password test} > nil {:id 3, :username ruthpierich, :password test} > nil nil) > > when i perform a @users i get: > > ({:id 1, :username "rpierich", :password "test"} {:id 2, :username > "ruthpierich", :password "test"} {:id 3, :username > "ruthpierich", :password "test"}) > > > Is this a bug with map or since it adds on those nils or am i missing > something in the call to map? > > Cheers, > Ruben > > -- > 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
