Is there any way for me to distinguish these two values?

$foo->{bar}  =  {};
$foo->{ball} = {()};

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I haven't found anything yet, but i'm hoping the first will somehow be undefined where the second is merely empty. Any chance?

(i'm looking for a simple way to allow module callers to say 'these rules', 'all rules' or 'no rules'. Thought this might be the key.)

In reply to {} vs {()} by thpfft

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