On Wed, 7 Jan 2015 07:56:18 +0000 Andrew Solomon <and...@geekuni.com> wrote:
> Hi Luca, > > I haven't tested it, but my suspicion is that your first solution will > be faster because regular expressions (which don't contain variables) > are only compiled once, while you have a function call for every use > of lc. > > By the way another alternative might be: > > $extention =~ /\.bat/i > > (which would also match BaT, BAt...) > The second code excerpt that was given will also match all that: « $extension = lc $extension; $extension =~ / \.bat /x; » Anyway, one can use the Benchmark.pm module to determine which alternative is faster, but I suspect their speeds are not going to be that much different. See: http://perl-begin.org/topics/optimising-and-profiling/ (Note: perl-begin.org is a site I originated and maintain). Regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ Perl Humour - http://perl-begin.org/humour/ John: Hey, we are completely non-violent vampires. We don’t suck blood. Selina: I thought all vampires suck blood. John: Bullocks, hen. Vampires come in all shapes and sizes. — http://www.shlomifish.org/humour/Selina-Mandrake/ 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/
