You pass a reference to a hash to send_2. This ref is placed into the 1st element of @_ inside the sub. Here is one way to access the hash keys: 
sub send_2 {
    my $args = shift;
    my $name = $args->{name} || '';   
}

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In reply to Re: More efficient ways to pass values to a sub routine by toolic
in thread More efficient ways to pass values to a sub routine by Anonymous Monk

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