Neal Clark wrote:
> you are working with two different variables.
>
> On Feb 27, 2007, at 12:24 PM, Ravi Malghan wrote:
>
>> what am I doing wrong here when trying to access the
>> value john for node1
>> =========
>> $SESSION{FirstRun} = 1;
>
> this line creates a _hash_, %SESSION with one element (keyed by
> FirstRun, value is 1).
>
>> %nodeowner = ("node1", "john", "node2", "nancy");
>> push(@SESSION, %nodeowner);
>
> here you're pushing to an array that perl has never heard of, @SESSION,
> so perl goes ahead and makes an empty one for you before it pushes your
> hash to it. you end up with an array of one element where $SESSION[0] =
> %nodeowner
Incorrect.
%nodeowner = ("node1", "john", "node2", "nancy");
push(@SESSION, %nodeowner);
Is equivalent to:
push(@SESSION, ("node1", "john", "node2", "nancy"));
Except that the order of the keys and values could be in any arbitrary order.
(A hash in list context is just a list.)
John
--
Perl isn't a toolbox, but a small machine shop where you can special-order
certain sorts of tools at low cost and in short order. -- Larry Wall
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