clojure-koans/src/koans/20_partition.clj

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(ns koan-engine.runner)
(ns koans.20-partition (:use koan-engine.core))
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(meditations
"To split a collection you can use the partition function"
(= '((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 than n elements"
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(= __ (partition-all 3 (range 5)))
"If you need to, you can start each sequence with an offset"
(= '((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"
(= '((0 1 2) (3 4 5) __) (partition 3 3 [:these :are "my" "words"] (range 7))))