On Thu, 25 Aug 2011 10:08:55 -0700 mer...@stonehenge.com (Randal L. Schwartz) wrote:
> >>>>> "Shlomi" == Shlomi Fish <shlo...@shlomifish.org> writes: > > Shlomi> I also tend to avoid using "$_" (except for map/grep/etc. where > Shlomi> it is required), because it can be clobbered and devastated too > Shlomi> easily, which also makes depending on it error prone. > > Well, that's interesting. I've *never* accidentally clobbered > $_. Nearly everything that uses $_ localizes it immediately, except for > the implicit assignment to $_ during a while-reading-filehandle loop, or > being the target of a s/old/new/ operation, which I consider something > to learn properly in the first few hours of Perl because it happens so > often. > > Can you give an example from your old code where you "accidentally" > clobbered $_? > Well, I believe I've always avoided using an implicit $_ as preventative measure (out of thinking I know better) and so cannot present such a case first-hand. However, see: http://www.forum2.org/gaal/perl/Pitfall/slide001.html - “A $_ Gotcha”. Regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ "The Human Hacking Field Guide" - http://shlom.in/hhfg The cool thing about Vim is — you find something interesting with every typo. — Su‐Shee on Freenode’s #perl . Please reply to list if it's a mailing list post - http://shlom.in/reply . -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
