That's it! Thanks. On Monday, 21 January 2013 15:28:39 UTC-5, Jim foo.bar wrote: > > ...or you can go all the way, skipping reset! completely: > > (swap! game-objects (fn [objects] (reduce-kv #(assoc % %2 (update-object > %3)) {} objects) )) > > Jim > > ps: I've not tested this but i don't see why this approach wouldn't > work... > > > On 21/01/13 20:24, Jim - FooBar(); wrote: > > use reduce-kv on the original map to save some intermediate vector > > allocation...something similar has come up recently... > > > > (reduce-kv #(assoc % %2 (update-object %3)) {} @game-objects) > > > > Jim > > > > On 21/01/13 20:21, JvJ wrote: > >> I'm updating a set of objects stored in a map, and I feel like the > >> way I'm doing it right now is inefficient. Is there a better way? > >> > >> (defn update-all-objects > >> "Updates all game objects." > >> (reset! *game-objects* > >> (into {} > >> (for [[k v] @*game-objects*] > >> [k (update-object v)])))) > >> -- > >> You received this message because you are subscribed to the Google > >> Groups "Clojure" group. > >> To post to this group, send email to clo...@googlegroups.com<javascript:> > >> Note that posts from new members are moderated - please be patient > >> with your first post. > >> To unsubscribe from this group, send email to > >> clojure+u...@googlegroups.com <javascript:> > >> For more options, visit this group at > >> http://groups.google.com/group/clojure?hl=en > > > >
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