I thought that if (defined $2) is just a better readable way than if ($2). But I found that gives different results:
#!/usr/bin/perl -w
#
#
use strict;

my $price = "50,-";
$price =~ m/(\d{1,4}),(\d{0,2})/;
if ($2 ) {
    $price = $1 . "." . $2;
}
else {
    $price = $1 . "." . "00";
}
print "$price\n";

[download]
gives : 50.00 as I would expect
but
if (defined $2 ) {
    $price = $1 . "." . $2;
}
else {
    $price = $1 . "." . "00";
}

[download]
gives 50.
Can an enlightend monk explain why?

In reply to if ($2) behaves differently than if (defined $2) by walto

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