my $state = (
        'b == a',
        'b < a',
        'b > a',
    )[$a <=> $b];

##</code><code>##

    print (
        'b == a',
        'b < a',
        'b > a',
    )[$a <=> $b], "\n";

##</code><code>##

    print [
        'b == a',
        'b < a',
        'b > a',
    ]->[$a <=> $b], "\n";

##</code><code>##

    print ((
        'b == a',
        'b < a',
        'b > a',
    )[$a <=> $b], "\n");

##</code><code>##

    my $status = {
        'key 1' => 'value 1',
        'key 2' => 'value 2',
        'key 3' => 'value 3',
    }->{ $key };