I have a hash and the keys are page names.

(snip)

I want to create another hash using the page names as the keys and the count() result as the values.
my %orig= # ...
my %new;
$new{$_}=however_you_get_it_from($_) for keys %orig;

[download]

or

my %new=map { $_ => however_you_get_it_from($_) } keys %orig;

[download]

or...

In reply to Re: Hashing up hashes by blazar
in thread Hashing up hashes by pickledegg

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