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Postings from September 2005
On Sep 22, 2005, at 3:08 AM, Luke Palmer wrote: > On 9/22/05, Carl Mäsak <cmasak@gmail.com> wrote: > >> FWIW, to me it looks fairly intuitive. undef here means "don't alias >> the element, just throw it away"... gaal joked about using _ instead >> of undef. :) >> > > Joked? Every other language that has pattern matching signatures that > I know of (that is, ML family and Prolog) uses _. Why should we break > that? Because the way Carl has it is more consistent with Perl 5, from whence most of our users will be coming? Because 'undef' has a nice visual weight, while '_' can all too easily disappear? Because throwing away values is something that we probably shouldn't make too easy? > IMO, it's immediately obvious what it means. Not IMO. _ in this context is content-free for me. But, whatever. I'm sure it will end up being _ if this feature is added. --DksThread Previous | Thread Next