2009/10/22 zaxis <z_a...@163.com>: > >>>f xs = (2,2222) : filter ((/=2) . fst) xs > It works but not general as `f` still needs to change other value according > to the "KEY". > Maybe Data.List will supply what i need.
I don't think Data.List has what you want as-is. The above code is generalized simply: replace k v xs = (k,v) : filter ((/=v) . fst) xs Cheers, Thu _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
