Anonymous seems to be saying that he doesn't want to have to modify the array itself. I think having one hash:my %uniq = map {(uc($_) => undef)} @ar; is what is called for.
Caution: Contents may have been coded under pressure.

In reply to Re^2: (almost) Unique elements of an array by Roy Johnson
in thread (almost) Unique elements of an array by Anonymous Monk

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