Otherwise (ab)using hashes for set operations like intersections would be trivial.

Though off-topic here: Is there a common idiom for an intersection of two hash-sets? The first thing that comes to my mind is something like: 

%a_b = map {exists $b{$_} ? ($_ => $b{$_}) : ()} keys %a;

[download]

Greetings,
-jo

$gryYup$d0ylprbpriprrYpkJl2xyl~rzg??P~5lp2hyl0p$

In reply to Re^2: Consise way to filter out keys with undef values from a hash slice? by jo37
in thread Consise way to filter out keys with undef values from a hash slice? by nysus

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