I ran across this sample while reading an article by Chromatic: 
my @fields = qw( name email );
my %results;
@results{@fields} = ();

[download]
I mean I see what happens here: 
use strict;
use warnings;
use Data::Dumper;

my @fields = qw( name email );
my %results;
print "Before: ", Dumper(\%results);
@results{@fields} = ();
print "After: ", Dumper(\%results);

__END__

Before: $VAR1 = {};

After: $VAR1 = {
          'email' => undef,
          'name' => undef
        };

[download]
I'm just not sure why it works. How does @results resolve to %results? Apparently the use of {} must force some context since normally @results and %results refer to different variables. Thanks.

In reply to Hash usage question by Anonymous Monk

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