9 Mar
2006
9 Mar
'06
5:29 p.m.
On Thu, Mar 09, 2006 at 11:09:50PM +0100, Jean-Philippe Bernardy wrote:
Hello,
Maybe I missed something, but are these two worth a name?
For reference: notMember k m = not $ member k m, in pointless style: notMember = (not .) . member
Any evidence to add to the case ?
* symmetry with elem/notElem * quite useful for cleaning up guards: f x | not (x `Set.member` map) && foo = ... is hard to read. * only a single obvious interpretation of meaning so people likely to define their own with same name conflicting with each other and it won't hurt to provide them. * I likes em. John -- John Meacham - ⑆repetae.net⑆john⑈