To check if a string contains only numeric digits in Perl, you can use regular expressions or functions like 'isdigit' to match numeric patterns in the string.
In this example,
sub contains_only_numeric_digits {
my ($str) = @_;
return $str =~ /^\d+$/;
}
my $str = '12345';
my $all_digits = contains_only_numeric_digits($str);
print "String contains only numeric digits: $all_digits\n";
String contains only numeric digits: 1
In this tutorial, we learned How to Check if String contains only Numeric Digits in Perl language with well detailed examples.