I'm not aware of a single perldoc discussing all details, like it's done in MDN for JS.

(Especially as it's mostly internal stuff which could change and the effects are supposed to be DWIM. Like I said most problems arise when converting to other languages, esp. JS)

But you can gather them from various places like perlop or perlglossary .

FWIW and I don't think !!1 used to be dualvar (see Scalar::Util ) prior to 5.36.

Cheers Rolf
(addicted to the Perl Programming Language :)
see Wikisyntax for the Monastery

In reply to Re^3: Why is Dumper returning "!!1" for true file test? by LanX
in thread Why is Dumper returning "!!1" for true file test? by nysus

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