On Thu, Oct 6, 2011 at 03:10, Shlomi Fish wrote:
> Furthermore, I think you can only put when inside given and not arbitrary
> code,
> and that "when()" operates on the datum that was given to given().
I don't think there's any restriction on what code can be inside the
'given' block -- at least
Hi Chris,
I think you will need to work on your code to make it better or maybe this
is just a dirty codes for practice. If not, there are some stuff you may
have to weed out...some of which Shlomi Fish mentioned.
However, to make your code work as you suppose, please check this little
addition a
On Wed, 5 Oct 2011 23:44:21 -0500
Chris Stinemetz wrote:
> trying to learn smart matching in an exercise.
>
> Why does this program output "odd" when I input an even number?
>
A few comments on your code.
> Thank you,
>
> Chris
>
> #!/usr/bin/perl
>
trying to learn smart matching in an exercise.
Why does this program output "odd" when I input an even number?
Thank you,
Chris
#!/usr/bin/perl
use warnings;
use strict;
use 5.010;
say "Checking the number <$ARGV[0]>";
my $favorite = 62;
given( $ARGV[0] ) {
19.01.2011 0:43, Brian Fraser пишет:
The smart match is no longer commutative - That was removed after 5.10.1, I
think.
http://www.learning-perl.com/?p=32
http://perldoc.perl.org/perlsyn.html#Smart-matching-in-detail
Brian.
Thank you!
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The smart match is no longer commutative - That was removed after 5.10.1, I
think.
http://www.learning-perl.com/?p=32
http://perldoc.perl.org/perlsyn.html#Smart-matching-in-detail
Brian.
19.01.2011 0:09, Uri Guttman пишет:
but why don't you just call exists on the hash key? there is no win to
using smart matching for that. it is included for consistancy but it
isn't needed for hash keys.
I just want to understand how does it work :)
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>>>>> "VDB" == Vladimir D Belousov writes:
VDB> I'm trying to check whether the given key exists in the hash.
smart matching is powerful and cool but why don't you just call exists
on the hash key? there is no win to using smart matching for that. it is
I'm trying to check whether the given key exists in the hash.
The simple example:
use feature ':5.10';
my %a = (a => 1, b => 2);
say %a ~~ 'a' ? 'YES' : 'NO';# says NO -- why?
say %a ~~ 'c' ? 'YES' : 'NO';# says NO
say 'a' ~~ %a ? 'YES' : 'NO';# says YES
say 'c' ~~ %a ? 'YES' : 'NO';
