Part of it is laziness: map is lazy so it doesn't do anything unless you use the result. In the REPL, you print the result so map runs across the whole sequence. In the function, only the last expression (draggables) is returned so it is the only thing fully evaluated.
Your code is very procedural tho'... you should not have 'def' anywhere except the top-level (since it always creates top-level definitions - globals). You probably want 'let' for local definitions. Since you want non-lazy behavior, you're not going to want 'for' or 'map' - look at 'doseq' instead. Hope that helps? On Sun, Dec 2, 2012 at 5:25 PM, Arash Bizhan zadeh <aras...@gmail.com>wrote: > I am playing with clojurescript, and I have this code: > > (defn prepare [number] > (def targets (take 4 (drop (* 4 (- number 1)) (dom/getElementsByClass > "place-div")))) > (def target-objects (map #(make-target %) targets)) > (for [drag draggables target target-objects] > (.addTarget drag target)) > (map #(.init %) draggables) > (map #(.init %) target-objects) > draggables) > > It basically creates a bunch of dragNdrop objects. > This code doesn't work in this method - no error, just doesn't do the job > - > but if I execute the lines one at a time from repl, it works fine. > Can someone please explain what the heck is going on ? > > much appreciated. > > -- > 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 -- Sean A Corfield -- (904) 302-SEAN An Architect's View -- http://corfield.org/ World Singles, LLC. -- http://worldsingles.com/ "Perfection is the enemy of the good." -- Gustave Flaubert, French realist novelist (1821-1880) -- 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
