Oh and its rare (outside of macros) to use symbols like that. Usually you'd use keywords.
(def object-locations {:whiskey :living-room}) On Wed, Jul 9, 2014 at 5:03 PM, Thomas Heller <th.hel...@gmail.com> wrote: > Short and simple answer: NullPointerException > > (def object-locations nil) > > (object-locations 'bucket) will throw > ('bucket object-locations) => nil > > HTH, > /thomas > > On Wednesday, July 9, 2014 3:48:53 PM UTC+2, Cecil Westerhof wrote: >> >> When you have: >> (def object-locations { >> 'whiskey 'living-room >> 'bucket 'living-room >> 'chain 'garden >> 'frog 'garden >> 'dummy 'nowhere >> 'test 'nowhere >> }) >> >> You can retrieve the location of the bucket with: >> (object-locations 'bucket) >> and with: >> ('bucket object-locations) >> >> Personally I find the first better, but ‘Clojure Programming' uses the >> second possibility. What is the better way and why? >> >> -- >> Cecil Westerhof >> > -- > 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 a topic in the > Google Groups "Clojure" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/clojure/4KAuyAs34-s/unsubscribe. > To unsubscribe from this group and all its topics, 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.