Dr.Ruud wrote:
On 2010-09-25 01:57, Vaishnavi Saba wrote:My query: In the code shown below, How does *grep* compare a scalar( * $seen{$_}* ) with an array of hash references ( *...@_* ). ===== @common = inter( \%foo, \%bar, \%joe ); sub inter { my %seen; for my $href ( @_ ) { while (my $k = each %$href ) {Replace the while-line by: for my $k ( keys %$href ) {
Why? Either way will work and the while loop will use less memory. John -- Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction. -- Albert Einstein -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
