Re: use warnings is complaining

Check for empty string and substitute a number instead:

$inc ||= 0;
$exp ||= 0;
[download]

Those expressions transform to $var = $var || 0; and $var is false when it's zero-ish, undef or an empty string. When it's zero, we're not changing anything; we should not get undef in this program; and the empty string the cause of this warning, which we're replacing with 0.

Comment on Re: use warnings is complaining Select or Download Code

In Section Seekers of Perl Wisdom