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Solve runtime polymorphism

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Kenneth Kostresevic 2021-12-15 14:58:49 +01:00
parent a9c22921a5
commit 72ee00960c
1 changed files with 6 additions and 6 deletions
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12
src/koans/10_runtime_polymorphism.clj
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@ -10,19 +10,19 @@
"!")))
(defmulti diet (fn [x] (:eater x)))
(defmethod diet :herbivore [a] __)
(defmethod diet :carnivore [a] __)
(defmethod diet :default [a] __)
(defmethod diet :herbivore [a] (str (:name a), " eats ", "veggies."))
(defmethod diet :carnivore [a] (str (:name a), " eats ", "animals."))
(defmethod diet :default [a] (str "I don't know what ", (:name a), " eats."))
(meditations
"Some functions can be used in different ways - with no arguments"
(= __ (hello))
(= "Hello World!" (hello))
"With one argument"
(= __ (hello "world"))
(= "Hello, you silly world." (hello "world"))
"Or with many arguments"
(= __
(= "Hello to this group: Peter, Paul, Mary!"
(hello "Peter" "Paul" "Mary"))
"Multimethods allow more complex dispatching"