perl var dumper "synopsis"

Q: For simple variables, a perl subroutine dump(‘price’) can dump @price content [1] along with the variable name — “price” in this case. But do we ever need to pass in a reference like dump(\@price, ‘price’)? [1] How about a lexical my $price declared in a nested while inside an if, wrapped in a subroutine?

A: I think sooner or later you may have to pass in ref, perhaps in a very rare and tricky context. To show the variable’s name, u need to pass 2 args in total — ref + name

[1] in dump(), print Data::Dumper->Dump (map {[$_]} @_);


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