Map actually doesn't do anything at all. It simply creates a new lazy sequence. Instead of map, use doseq and you'll get the result you expect. Since you actually never print the result of the map, the lazy sequence is just thrown away, and f is never called, hence never evaluates.
Timothy > For example, the following program when evaluated (I'm > running Clojure 1.3) returns "wrong". > > (let [f (fn [x] (if (= x 10) > (throw (new RuntimeException "error!")) > "right"))] > (map f (list 10)) > "wrong") -- 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
