Re: how to test if an element belongs to an array or hash


A new question related:

if I created a hash, $set{$a}{$b}=1, I can get the keys of $b for a
given $a, using "keys %{$set{$a}}";

My question is, Is there any function that can test the existence of an
element belongs to $b for a given $a?
Thanks!

.

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