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Okay, so I left off the "Enjoy!" and so ctweten's has gotten more votes than mine. ;)

This discussion has been so short and to the point, I thought I'd add a bit...

I dislike having to use the %{...} syntax as it is hard to read. One solution is:

$ref= $obj->{param}; for( keys %$ref ) { Mung( $ref->{$_} ); }
But what we really need is a post-fix operator that give you the whole hash (or array, or scalar, etc.) from a reference:
my @keys= keys $obj->{param}->%;
This was proposed on perl5-porters a while back but noone has submitted a patch (as far as I know) to implement it. So here is your chance to become famous. Go to the perl5-porters archive and read up on the proposal and you've got a great project for learning Perl guts.

In reply to Postfix, whole-object dereference operators by tye
in thread keys function question by raflach

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