> I think it means any class that implements java.util.Collection.
To be precise, I think "nil" is also always OK. Sometimes other seq-able things like Java arrays can be passed too, although I don't think this is ever promised to work (if it doesn't, you can always explicitly call seq on them first): user> (into [4] (.toArray [1 2 3])) [4 1 2 3] user> (into (.toArray [1 2 3]) [4]) ; ClassCastException user> (into (seq (.toArray [1 2 3])) [4]) (4 1 2 3) -Jason --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
