Wiggins d'Anconia wrote:
>Jan Eden wrote:
>>$$PCEs[$cn]{$dh{"id"}} ...
>>
>
>Adding an extra $ here causes Perl to look for $PCEs a scalar, which
>doesn't exist rather than dereference the PCEs array.
>
Ok, I thought of a construction like
$ {$PCEs[$cn]} {$dh{"id"}} ...
This should be equivalent to the arrow notation below, since $PCEs[$cn] is evaluated
first. But I cannot omit the curly braces since the variable which holds the reference
is not a simple scalar. Thanks for correcting me.
>>Alternatively, you could improve the readability by using the arrow
>>dereference, though:
>>
>>$PCEs[$cn]->{$dh{"id"}} = $dh{"ridPCE"};
>>
>
>Using the arrow operator is a good idea for readability but isn't
>related to your extra $ above.
Jan
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