Re^2: Grouping Objects by Attribute

in reply to Re: Grouping Objects by Attribute
in thread Grouping Objects by Attribute

Thanks, edan, that did the trick.

However, I don't quite get the bit

@{ $monks_by_level{$level} }

I understand this to mean that the $monks_by_level{$level} is the value of the hash for the key $level and that the @{ ... } around it automagically makes this value an array. Is this right?

loris

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Re^3: Grouping Objects by Attribute by edan (Curate) on Nov 01, 2004 at 10:14 UTC
You're right, you just need a bit of terminology thrown in there. `$monks_by_level{$level}` is an `array reference (see perlref for details)` and `@{ }` is how we dereference an array reference, so that we can use it as an array. You could also dereference individual scalars in the array using syntax such as `$monks_by_level{$level}[0]`. -- edan	[reply]

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