I just started using the latest version of Perl from version 5.32. I hadn't heard about the new booleans. Hadn't heard about !!0 and !!1 either.

These are definitely a weird beast. When I did print Dumper !!1 I expected it to print 1 but in fact it printed $VAR 1= !!1. This must be the dual var nature you refer to.

Is there a basic tutorial on all this?

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In reply to Re^2: Why is Dumper returning "!!1" for true file test? by nysus
in thread Why is Dumper returning "!!1" for true file test? by nysus

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