in reply to Dereferencing and comment from Camel
It just means that given $array_ref = [qw/bar baz/]
$$array_ref[0] is the same as $array_ref->[0]
Similarly, given $hash_ref = { bar => 'baz' }
$$hash_ref{bar} is the same as $hash_ref->{bar}
I've traditionally preferred the double-sigil style, mostly because I strongly disliked the arrow syntax when I first started coding Perl. I think though it is generally regarded as bad because it isn't quite so explicit, and I admit my own opinion on the matter is gradually shifting toward the arrow.
Another example:
%hash{array_ref} = []; push @{$hash{array_ref}}, 'thingy';
Here the reference is a value in a hash that points to an array which must be dereferenced before being passed to push
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Re: Re: Dereferencing and comment from Camel
by jerrygarciuh (Curate) on Dec 21, 2002 at 04:54 UTC |
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