Hi Shlomi, Never my intention of using un-friendly variables names as $a and $b same as I am familiar with them used in sorting - mine was just an example of something i am in need :)
Chanan On Wed, May 1, 2013 at 11:19 AM, Shlomi Fish <[email protected]> wrote: > Hi Shmuel, > > On Wed, 1 May 2013 17:09:34 +0900 > Shmuel Fomberg <[email protected]> wrote: > > > Hi Chanan. > > > > On Wed, May 1, 2013 at 5:06 PM, Chanan Berler wrote: > > > > > > > Quick Perl question: Why I can not do something like this? > > > my @arr = ((10,20), (100,200), (111,222)); > > > > > > foreach my ($a,$b) (@arr) > > > { > > > print "a=$a, b=$b\n"; > > > } > > > > > > > Perl just doesn't support this syntax. Your array will be flatted, and > > foreach get one variable at a time. > > > > you can do this: > > > > my @arr = ([10,20], [100,200], [111,222]); > > > > foreach my $rec (@arr) > > { > > my ($a, $b) = @$rec; > > Please don't lexicalise $a and $b: > > http://perl-begin.org/tutorials/bad-elements/#vars-a-and-b > > Regards, > > Shlomi Fish > > > print "a=$a, b=$b\n"; > > } > > > > Shmuel. > > > > -- > ----------------------------------------------------------------- > Shlomi Fish http://www.shlomifish.org/ > What Makes Software Apps High Quality - http://shlom.in/sw-quality > > Logic sucks. Morality sucks. Reality sucks. Deal with it! > > Please reply to list if it's a mailing list post - http://shlom.in/reply . > _______________________________________________ > Perl mailing list > [email protected] > http://mail.perl.org.il/mailman/listinfo/perl > -- =================== ---- Chanan Berler ---- ===================
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