#!perl
use strict;
use warnings;
use Test::More tests => 1;
use syntax 'keys_on_array';
my @a = (qw/a b c/);
my $s = join "", keys @a;
is($s, "012");
#!perl
use strict;
use warnings;
use Test::More tests => 1;
use syntax 'keys_on_array';
my @a = (qw/a b c/);
my $s = join "", keys @a;
is($s, "012");