Clojurians Log v2
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speculative 2019-01-10
borkdude 2019-01-10T08:54:19.061800Z
it was fun, lots of good reactions. we wrote a spec for zipmap at the meetup:
(s/fdef clojure.core/zipmap
:args (s/cat :keys ::ss/seqable
:vals ::ss/seqable)
:ret ::ss/map)
(zipmap #{:a :b :c} [1 2 3]) ;;=> {:c 1, :b 2, :a 3}.borkdude 2019-01-10T08:54:41.062200Z
unless there’s a valid use case for not calling it with sequentials
borkdude 2019-01-10T08:55:48.062500Z
yeah, I think I found one: (zipmap (into-array [:a :b :c]) [1 2 3])
Alex Miller (Clojure team) 2019-01-10T11:36:03.064100Z
a common idiom is to use zipmap with a collection as a set of seed keys for a map and repeat with the initial values
Alex Miller (Clojure team) 2019-01-10T11:36:48.065Z
(def names #{"Alex" "Rich" "Stu"})
(def scores (zipmap names (repeat 0)))
;;=> {"Stu" 0, "Rich" 0, "Alex" 0}borkdude 2019-01-10T11:39:41.065800Z
cool, so it should def support seqable? then
borkdude 2019-01-10T11:40:30.067100Z
I also changed assoc-in and get-in to seqable? instead of sequential? for the key seq
borkdude 2019-01-10T11:42:58.067800Z
will add your example to the tests soon: https://github.com/borkdude/speculative/issues/216#issuecomment-453067231
slipset 2019-01-10T05:43:10.060100Z
No worries. Hope it went well!