[racket-dev] member like assoc

+1, do it. 

On May 31, 2013, at 7:40 PM, Asumu Takikawa wrote:

> Hi all,
> 
> Is it feasible to get `member` to have the same optional argument
> behavior as `assoc`? That is, to have an equality predicate as the third
> argument.
> 
> I find myself writing the (imaginary) equivalent of things like:
>  (member id some-list free-identifier=?)
> 
> and it seems like it would be nicer with an extra `member` argument than
> with `memf`.
> 
> Cheers,
> Asumu
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