in reply to Re^2: $var{el} += 1 vs $var{el} = $var{el} + 1
in thread $var{el} += 1 vs $var{el} = $var{el} + 1

Okay, so that begs a question - what is the impact on performance between:

irrelevant :)

Throwing memory at the problem (extra $scalar) is slightly faster than extra (double-1) hash lookups

But you meant to type

$someKey = $resultHash{SomeKey}; $totalsHash{ $someKey } = $$someKey{AltValue};