History of Idiom 57 > diff from v20 to v21
Edit summary for version 21 by :
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Version 20
2015-08-26, 21:12:42
Version 21
2015-09-03, 13:57:56
Idiom #57 Filter list
Create list y containing items from list x satisfying predicate p. Respect original ordering. Don't modify x in-place.
Idiom #57 Filter list
Create list y containing items from list x satisfying predicate p. Respect original ordering. Don't modify x in-place.