And it assumes that they are _identical_ maps that you are calling keys and vals on.
Equal (via =) not-sorted maps do *not* guarantee that they will have the same seq order as each other, and in some cases do not, due to hash collisions in hash maps having items in a linked list in whatever order they happened to be added to the map. Similarly for array maps. Andy On Fri, Apr 17, 2015 at 2:44 PM, Ambrose Bonnaire-Sergeant < abonnaireserge...@gmail.com> wrote: > Clearly this assumes immutable maps. > > On Fri, Apr 17, 2015 at 5:42 PM, Ambrose Bonnaire-Sergeant < > abonnaireserge...@gmail.com> wrote: > >> keys/vals are documented >> <https://github.com/clojure/clojure/blob/028af0e0b271aa558ea44780e5d951f4932c7842/src/clj/clojure/core.clj#L1478> >> to return the same order as seq. This is a safe assumption. >> >> Thanks, >> Ambrose >> >> On Fri, Apr 17, 2015 at 5:39 PM, Michael Blume <blume.m...@gmail.com> >> wrote: >> >>> >>> In other people's Clojure code I sometimes see things like >>> >>> (zipmap >>> (map some-fn (keys m)) >>> (map other-fn (vals m))) >>> >>> If it were my code I'd be much more inclined to write >>> >>> (into {} >>> (for [[k v] m] >>> [(some-fn k) (other-fn v)])) >>> >>> Is this a to-each-their-own thing or is the latter preferred? >>> >>> -- >>> 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. >>> >> >> > -- > 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. > -- 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.
