12 Sep
2016
12 Sep
'16
4:53 a.m.
On 11 Sep 2016, at 17:19, Henning Thielemann wrote:
I do not see why deleteBy should have an argument for the deleted element, anyway, since it is not even the element to delete (only an equivalent one). Wouldn't a function with type
newDeleteBy :: (a -> Bool) -> [a] -> [a]
be much more straight-forward?
It already exists, and is called "filter", modulo the sense of the boolean. Regards, Malcolm