unless (...) is the equivalent of if (not (...)) - it only simplifies your code if it makes it more readable. For example, you might find next LINE unless format_is_ok($line); more readable than next LINE if !format_is_ok($line);. When in doubt, stick with if. Also, unless is a conditional statement like if, not a "loop".

In reply to Re: Simplify code in Perl with "unless" loop by Anonymous Monk
in thread Simplify code in Perl with "unless" condition by Chaoui05

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