Iterating through the pairs is useful. Asking if a given [k, v] is included is not - you can just ask if (= (assoc k) v) instead.
It'd be nice if (contains-val) returned the key(s) as its true result, but probably not useful enough to warrant the complexity of dealing with false keys, explicit true checks, etc. In CL I would totally return the key list as a multivalue on top of t, though. :) On Thursday, April 29, 2010, Boris Mizhen - 迷阵 <bo...@boriska.com> wrote: >> +1. I can't imagine any use case for looking up a whole [key, value] pair in >> a hash-map. > Actually this is quite useful when you want to do something for each > value and need to know the key as well - for example copy some > key/value pairs to another map > > Boris > >> >> -- >> 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 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 -- Mark J. Reed <markjr...@gmail.com> -- 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
