Help for this page
sub atoi { my $t; ... } } $number = atoi("123");
$string = sprintf("%f", 123.45);
if ($string == "$string") { # It is a number }
if ($var =~ /(?=.)M{0,3}(C[MD]|D?C{0,3})(X[CL]|L?X{0,3})(I[XV]|V?I{0 +,3})/) { print "$var contains a number.\b"; }
www.com | www.net | www.org
No recent polls found