If the value of an element in a hash is a reference, then<KBD> ref($hash{"keyname"})</KBD>
returns something like<KBD> SCALAR</KBD>.

The result is much different if the key itself contains a reference. 

  print ref( $key ) foreach $key (keys %hash);

<KBD>ref( $key ) </KBD>returns nothing if "$key" is in fact a reference. So I have been
resorting to testing, say: 

  index($key, "SCALAR")

... which seems to border on downright cheesy. Is there some less cheesy way
to make "$key" give up its little secret?

In reply to If a hash key is a reference... by Anonymous Monk

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