I want to test the existence of a hash key so that the case of the key does not matter. I would prefer to do this in the normal way of
if(exists($data{$str})) {
where any of abcd, aBcd, AbcD and so on would pass for the key of abcd.
What is the simplest way of achieving this?

In reply to Case insensitive hash key existance by merrymonk

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