my @userArray = qw(batman robin joker);
my @userArray2; #this is a null array
my @mainArray = (@userArray, @userArray2);

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and then... 
#@set should consist "batman robin joker", but not
#"batman robin joker NULL"

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@mainArray should already contain what you want.

my @set = map { exists($_)? $_ : delete($_) } @mainArray;

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I think you misunderstand exists and delete.

-David

In reply to Re: any built in function to take out null arrays elements? by erroneousBollock
in thread any built in function to take out null arrays elements? by adrive

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