BTW, there seems to be bug in your routine. I think you meant something like !$seen{$_}++.

That illustrates the value of having even a "simple" routine in a re-usable module!

That module is on my to-avoid list. It's poisoned with prototypes and is chock full of functions of dubious utility and quality. Thanks for the note about the bug in my response. I don't make the same mistake when I'm typing at source code.

In general, I'd prefer to inline these sorts of tasks anyway. It's only while experimenting that I use these as broken out functions.

⠤⠤ ⠙⠊⠕⠞⠁⠇⠑⠧⠊

Thanks for the note about the bug in my response. I don't make the same mistake when I'm typing at source code.

LOL! Yeah, right. You've shown a perfect example why people ought to put such often used code in a module, instead of typing it in, again and again.

[List::MoreUtils]... is chock full of functions of dubious utility and quality.

Could you elaborate a bit about the quality? Just curious, could be an interesting source for guidelines and best practices (and probably a meditation by its own).

Flavio
perl -ple'$_=reverse' <<<ti.xittelop@oivalf

Don't fool yourself.