On Tue, Feb 24, 2015 at 10:06 AM, Rick Waldron <[email protected]> wrote: > On Tue Feb 24 2015 at 12:22:25 PM Mark S. Miller <[email protected]> wrote: >> As always with proposals to extend arity -- even if reserved by a thrown >> error in a previous release -- how would you feature test for the extended >> functionality? >> >> I suspect the awkwardness of feature testing is one of the reasons why we >> have not previously added new functionality by extending arity of existing >> std functions. Though reserving by throwing does change the game somewhat. >> Does it change the game enough? > > TBH, I've never encountered the issue that Dr. Rauschmayer reported—so I'm > not convinced that it's necessary to do anything about it at all.
Python has the same issue, and I've run into it before (exactly the same examples - passing several strings, and unexpectedly getting a Set of characters from the first string), but it's not too hard to train yourself to always pass a list to Set. I agree that we probably don't need to do anything to fix this. ~TJ _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss

