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22 lines
841 B
Clojure
22 lines
841 B
Clojure
(ns koans.21-partition
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(:require [koan-engine.core :refer :all]))
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(meditations
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"To split a collection you can use the partition function"
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(= '((0 1) (2 3)) (__ 2 (range 4)))
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"But watch out if there are not enough elements to form n sequences"
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(= '(__) (partition 3 [:a :b :c :d :e]))
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"You can use partition-all to also get partitions with less or equal to n elements"
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(= __ (partition-all 3 (range 5)))
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"If you need to, you can start each sequence with an offset"
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(= '((0 1 2) (5 6 7) (10 11 12)) (partition 3 __ (range 13)))
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"Consider padding the last sequence with some default values..."
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(= '((0 1 2) (3 4 5) (6 :hello)) (partition 3 3 [__] (range 7)))
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"... but notice that they will only pad up to the given sequence length"
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(= '((0 1 2) (3 4 5) __) (partition 3 3 [:these :are "my" "words"] (range 7))))
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