Re:confused about reference





Message du 31/10/08 04:08
De : "Richard Lee"
A : "Perl Beginners"
Copie à :
Objet : confused about reference



I was just testing some reference and while trying out below I am trying
to understand below

@{$yahoo->{yahoo}}........... I can see that this is pointing to 0,1,3
by running the code.
But I am trying to really understand whether this is trying to say since
value of 'yahoo' is array put @ at the front?
or @ is there because it's array slice??
Can someone explain this?

Also, %{$base[0]}, trying to understand this.
According to the tutorial,

%base referenced is %{$base}

what is the difference between %{$base[0]} vs %{$base}[0]


%{$base}[0] is just a syntax error.
$hash->{$base}[0] is effective syntax.

For %{$base[0]}. $base[0] is an anonymous hash (or hash reference), %{...} will derefer it.


Jeff.
http://home.arcor.de/pangj/

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