Hi David, On Mar 22, 5:01 pm, David Sletten <da...@bosatsu.net> wrote: > On Mar 21, 2009, at 1:44 PM, Mark Triggs wrote: > > > user=> (str (filter even? (range 1 10))) > > "clojure.lang.lazy...@f1005" > > > Previously this would readably print the contents of the seq and some > > of my code was relying on this. Obviously it's not difficult to call > > `prn-str' myself, but I just wondered if this change was made > > consciously. > > According to the documentation for 'str': > With one arg x, returns x.toString(). > > So it looks like toString() on a sequence used to return its contents > and now doesn't. However, rather than relying on this behavior what > you probably should be doing is using 'apply': > (apply str (filter even? (range 1 10))) => "2468" > > If you want commas between those elements, use 'interpose': > (apply str (interpose ", " (filter even? (range 1 10)))) => "2, 4, 6, 8"
Yep, that's fine. In my case I was actually relying on the fact that `str' was effectively doing a `prn-str' because I would later read it back using `read-string' elsewhere. Calling `prn-str' explicitly isn't a problem--I just thought I'd mention that the semantics have now changed a little. Thanks, Mark --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
