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<ion> printf \'%s\\n\' \'if [ "$#" -gt 0 ]; then printf \'\\\'\'%s\\n\'\\\'\' "$*"; else cat; fi | tr a-zA-Z n-za-mN-ZA-M\' | tee bin/rot13
author HackBot
date Sat, 22 Feb 2014 02:21:01 +0000
parents b70362a4c382
children
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-- Hi everyone!
-- Could please someone explain me an output of the function:

splitEvery n list = first : ( splitEvery n rest )
    where (first, rest) = splitAt n list

-- it returns a lis of lists splitEvery :: Int -> [a] -> [[a]]
-- But I don't understand how it works, why it returns list of lists.
-- splitAt returns TUPLE and "first" is somehow joined to it.