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annotate 98076 @ 4420:9f0ff8ae5b8c

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<kmc> cd lib && ln -s c++decl cdecl
author HackBot
date Sun, 09 Feb 2014 02:01:11 +0000
parents b70362a4c382
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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4269
b70362a4c382 <Bike> fetch http://lpaste.net/raw/98076
HackBot
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1 -- Hi everyone!
b70362a4c382 <Bike> fetch http://lpaste.net/raw/98076
HackBot
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2 -- Could please someone explain me an output of the function:
b70362a4c382 <Bike> fetch http://lpaste.net/raw/98076
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3
b70362a4c382 <Bike> fetch http://lpaste.net/raw/98076
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4 splitEvery n list = first : ( splitEvery n rest )
b70362a4c382 <Bike> fetch http://lpaste.net/raw/98076
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5 where (first, rest) = splitAt n list
b70362a4c382 <Bike> fetch http://lpaste.net/raw/98076
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6
b70362a4c382 <Bike> fetch http://lpaste.net/raw/98076
HackBot
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7 -- it returns a lis of lists splitEvery :: Int -> [a] -> [[a]]
b70362a4c382 <Bike> fetch http://lpaste.net/raw/98076
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8 -- But I don't understand how it works, why it returns list of lists.
b70362a4c382 <Bike> fetch http://lpaste.net/raw/98076
HackBot
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9 -- splitAt returns TUPLE and "first" is somehow joined to it.