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History of Idiom 12 > diff from v20 to v21

Edit summary for version 21 by :
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Version 20

2015-09-03, 12:04:17

Version 21

2015-09-03, 12:06:54

Idiom #12 Check if list contains a value

Check if list contains a value x.
list is any iterable finite container.

Idiom #12 Check if list contains a value

Check if list contains a value x.
list is any iterable finite container.

Code 
x `elem` list
Code 
x `Data.Foldable.elem` list
Doc URL
http://hackage.haskell.org/package/base-4.8.1.0/docs/Data-Foldable.html#v:elem