>From map's docstring: "Returns a lazy sequence [...]" So I guess you applied map at the top level and wondered why side- effects didn't happen.
Try: (dorun (map #(form-with-side-effects %) a-list)) Or, for fun: (take 1 (map #(form-with-side-effects %)) Basically, since your map wasn't needed, it wasn't "realized"/ executed. Laziness. Sean wrote: > What I don't understand is why the > doseq macro is required instead of the mapping operation. Could > somebody explain why Clojure has this different form for functions > that have side effects? --~--~---------~--~----~------------~-------~--~----~ 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 clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
