Re: Passing Reference of a Hash to a method

In, my $hRef=@_; you're forcing @_ into scalar context, yielding count of its elements. As called, that is 1, and ref(1) gets you undef.

Fix this by making the assignment happen in list context:

sub traverseHash {
    my ($hRef) = @_;
    print ref($hRef);
}
[download]

After Compline,
Zaxo

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Re^2: Passing Reference of a Hash to a method by bart (Canon) on Nov 23, 2004 at 11:53 UTC
ref never returns undef. Even `ref(undef)` returns an empty string. `local $\ = "\n"; print defined ref undef; print length ref undef;` [download] prints 1 0	[reply] [d/l] [select]