clojure-koans/koans/about_sets.clj

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2010-02-06 23:43:06 +00:00
(meditations
"Sets are another important data structure in clojure"
(= #{} (set nil))
"Remember that a set is a 'set'"
(= __ (set '(1 1 2 2 3 3 4 4 5 5)))
"You can ask clojure for the union of two sets"
(= __ (clojure.set/union #{1 2 3 4} #{2 3 5}))
"And also the intersection"
(= __ (clojure.set/intersection #{1 2 3 4} #{2 3 5}))
"But don't forget about the difference"
(= __ (clojure.set/difference #{1 2 3 4 5} #{2 3 5})))