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( [id://3333]=superdoc: print w/replies, xml ) Need Help??
Doesn't work. Try the following test:
my @array1 = qw(dog cat rat mouse); my @array2 = qw(dog rat mouse bird); my @array3 = qw(cat rat fish mouse); my %seen; my @collection; foreach my $item ( @array1, @array2, @array3 ) { unless ( exists( $seen{$item} ) ) { push @collection, $item; $seen{$item}++; } } print "@collection\n"; @collection = (); %seen = (); foreach my $item ( @array2, @array1, @array3 ) { unless ( exists( $seen{$item} ) ) { push @collection, $item; $seen{$item}++; } } print "@collection\n"; __END__

Prints:

dog cat rat mouse bird fish dog rat mouse bird cat fish

Theoretically, it should always give the same order, no matter what order the initial arrays are in.

------
We are the carpenters and bricklayers of the Information Age.

Please remember that I'm crufty and crochety. All opinions are purely mine and all code is untested, unless otherwise specified.


In reply to Re: Re: "Intelligent" array joining by dragonchild
in thread "Intelligent" array joining by ngomong

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