Golf, eh? @words = sort grep !$seen{+lc}++, @words; The + keeps lc from being interpreted as a hash key, and lc operates on $_ by default.

Update: Of course, this works if your data set is all lowercase. Moral of the story, don't go for the birdie unless you're sure it's what you want.

In reply to (chromatic) RE: RE: Re: List processing performance by chromatic
in thread List processing performance by Odud

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