DB<106> safe_reverse \%h
 => (1, ["a", "b"], 2, "c")

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That kind of hash (reference) drives me nuts as it makes using the values cumbersome due to the need to test the type before use. (That reminds me to write a utility sub to convert (plain) scalar to one-element array reference.)

In reply to Re^3: inverting hash / grouping values by Anonymous Monk
in thread inverting hash / grouping values by LanX

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