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Merge pull request #951 from devinmcginty/master

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Add more information on ranges in Haskell
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ven 2015-02-02 21:44:00 +01:00
commit 8208aad862
1 changed files with 10 additions and 1 deletions
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@ -59,6 +59,7 @@ not False -- True
"Hello " ++ "world!" -- "Hello world!"
-- A string is a list of characters
['H', 'e', 'l', 'l', 'o'] -- "Hello"
"This is a string" !! 0 -- 'T'
@ -67,10 +68,18 @@ not False -- True
----------------------------------------------------
-- Every element in a list must have the same type.
-- Two lists that are the same
-- These two lists are the same:
[1, 2, 3, 4, 5]
[1..5]
-- Ranges are versatile.
['A'..'F'] -- "ABCDEF"
-- You can create a step in a range.
[0,2..10] -- [0, 2, 4, 6, 8, 10]
[5..1] -- This doesn't work because Haskell defaults to incrementing.
[5,4..1] -- [5, 4, 3, 2, 1]
-- You can also have infinite lists in Haskell!
[1..] -- a list of all the natural numbers