22 lines
495 B
Clojure
22 lines
495 B
Clojure
(defn count-items [& items]
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(count items))
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(meditations
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"Functions are often defined before they are used"
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(= __ (count-items :a :b :c :d))
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"But they can also be defined inline"
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(= __ ((fn [n] (Math/pow n 10)) 2))
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"Or using even shorter syntax"
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(= __ (#(Math/pow % 10)))
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"Functions can beget others"
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(= __ (((fn []
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(fn [a b] (+ a b))))
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4 5))
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"Higher-order functions take function arguments"
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(= 25 ((fn [f] (f 5))
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(fn [n] (__ __ __)))))
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