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Programming-Idioms

History of Idiom 52 > diff from v12 to v13

Edit summary for version 13 by :

Version 12

2015-09-04, 21:59:19

Version 13

2015-09-04, 22:00:47

Idiom #52 Check if map contains value

Determine whether map m contains an entry with value v, for some key.

Idiom #52 Check if map contains value

Determine whether map m contains an entry with value v, for some key.

Code
elem v (elems m)
Code
elem v (elems m)
Doc URL
https://www.haskell.org/hoogle/?hoogle=elems