This one took me a few minutes to see what I was doing wrong: ~~~ user=> (def m (atom {:x 1 :y 2})) #'user/m
;; Later on ... user=> (get m :x) nil ;; What?? `:x` isn't a key in `m`? But I *know* it is... ;; Sanity check, for comparison: user=> (get {:a 1 :b 2} :c) ; Right; `:c` is not a key in there, so I get `nil`. nil ;; Time passes and I eventually see the typo: user=> (get @m :x) 1 ~~~ Would be nice if that `(get m :x)` yielded an error message along the lines of, "That's not a map, it's a reference to an atom containing a map." -- John -- 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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.