History of Idiom 42 > diff from v12 to v13
Edit summary for version 13 :
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Version 12
2015-08-23, 00:03:48
Version 13
2015-09-05, 08:37:18
Idiom #42 Continue outer loop
Print each item v of list a which in not contained in list b.
For this, write an outer loop to iterate on a and an inner loop to iterate on b.
Idiom #42 Continue outer loop
Print each item v of list a which in not contained in list b.
For this, write an outer loop to iterate on a and an inner loop to iterate on b.
Code
sequence_ [ print v | v <- a, [ u | u <- b, u == v] == [] ]
Comments bubble
a _\\ b abbreviates this task if you are not required to write your own printing iterations
Doc URL
http://hackage.haskell.org/package/base-4.8.1.0/docs/Data-Function.html#v:-46-