Hi fellows,

this is just a small thing. I have two arrays. One array (A) contains names from databases which I want to request. The other array (B) contains names from databases from array A I want to skip.
In short, I have one array containing elements which I want to delete from an other array, i.e. the difference quantity.

Here is the code example.

#!/usr/bin/perl -wl

use strict;

sub create_list {
   my @skip_dbs = @_;
   my @dbs = qw/fetch forward user smtp/;

   return map { my $map = $_; grep { !/$map/ } @skip_dbs } @dbs;
}

my @list = create_list("user", "smtp");
print "@list";

[download]

The output I expect:

fetch forward

[download]

The output I get:

user smtp user smtp smtp user

[download]

Where I am wrong?
Thanks in advance for any help :)

In reply to Difference Quantity of two Arrays by ocs

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