Hmmm, your solution produces nils in REPL. user=> (map #(printf "Happy Birthday %s\n" (if (= 2 %) "Dear XXX" "To You")) (range 4)) (Happy Birthday To You Happy Birthday To You nil Happy Birthday Dear XXX nil Happy Birthday To You nil nil)
On Fri, Sep 18, 2009 at 12:19 AM, Krukow <karl.kru...@gmail.com> wrote: > > > > On Sep 18, 5:53 am, Wilson MacGyver <wmacgy...@gmail.com> wrote: >> This blog post got me >> thinking.http://www.artima.com/weblogs/viewpost.jsp?thread=268561 >> >> Basically it contains both a Java one liner and Scala one liner. >> >> Java: >> for(int i=0; i<4; i++) { System.out.println("Happy Birthday " + (i==2 >> ? "Dear XXX" : "To You")); } >> >> Scala: >> (1 to 4).map { i => "Happy Birthday %s".format(if (i == 3) "Dear XXX" >> else "To You") }.foreach { println(_) } >> >> the goal is to generate >> >> Happy Birthday To You >> Happy Birthday To You >> Happy Birthday Dear XXX >> Happy Birthday To You >> >> I started thinking about how to do this in clojure. My first reaction was to >> think of the sentences as two sequences. Uses replicate to generate >> them, and map str to join them from two collections. > > I'd probably just do the scala version :-) > > (map #(printf "Happy Birthday %s\n" (if (= 2 %) "Dear XXX" "To You")) > (range 4)) > > But remember that the sequence is lazy, so type it directly into repl > or wrap in doall. > > /Karl > > > -- Omnem crede diem tibi diluxisse supremum. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
