Brethern,

I have a hash, %unk. Its values are tab-delimited lists of alphanumeric IDs. I want to print out the hash, with entries sorted in descending order by how many IDs they have. I use the Schwartzian transform . It works well but I've had to use a hack: 

use vars qw(%unk, @foo);
my(@ulist) =  
    map{      # Sort descending
        $_->[1] 
        } sort{ 
        $b->[0] <=> $a->[0] 
        } map{ 
          [scalar(@foo=split(/\t/, $unk{$_})), $_ ] 
            } keys %unk;

[download]
The hack is @foo; it's an unused variable. But if I drop it: 
      [scalar(split(/\t/, $unk{$_})), $_ ]

[download]
I get the warning 
Use of implicit split to @_ is deprecated at extractions line 393.

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Is there a better workaround than what I'm doing?

throop

In reply to Bogus variable to avoid 'split' warning by throop

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