I'll add something : suppose the OP wanted to undef arrays in a sub . I think I would pass the array as a reference, undef it in the sub and return the reference.

In technical discussions terms have precise meanings and it's important to use them in the same way that other people do. I don't think that "undef an array" means what you think it means.

If you mean to remove all of the elements of the array, then say that. If you want to replace all of the elements with the value undef then say that. Or do you actually mean that you want to call undef @ARRAY? According to the docs that will "forget @ARRAY ever existed". Which of these do you mean?

--
<http://dave.org.uk>

"The first rule of Perl club is you do not talk about Perl club."
-- Chip Salzenberg

In reply to Re^4: if (defined @arr) problem by davorg
in thread if (defined @arr) problem by jeanluca

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