To expand on Meikel's nice explanation: (to see if I understand correctly)
1. (defn baz ...) 2. (binding [foo bar] (baz [1 2 3])) - dynamically binds foo and creates a lazy-seq response to the baz fn. Because map is lazy the [1 2 3] sequence is actually not read by anything within the binding dynamic scope. The binding value simply isn't used as there isn't any code that takes any values out of the lazy map. 3. After (binding ...) is finished it will return the last expr evaluated - which was (baz [1 2 3]) _and_ it puts foo back to 42. 4. The repl now wants to print (baz [1 2 3]) so it takes the values out of the lazy map (while foo = 42). I wonder if this concept will be thought of as a source of problems in the future. Or, maybe this is just one of those fundamental Clojure concepts you just have to learn and once you do you find you don't get bit by it. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
