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What happens if your code is as follows:
if ( $salary < $threshold ) { increase_salary( $employee, 3_000); } else { decrease_salary( $employee, 3_000); }
Or just...
unless ($salary > $threshold) { increase_salary( $employee, 3_000); }

There is no right default way to handle undefs. If you expect undefs on your data, the best you can do is to test for them explicitly.

In reply to Re: "undef" is not NULL and what to do about it by salva
in thread "undef" is not NULL and what to do about it by Ovid

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