Re: Match multiple number

[tobyink]

Use modulo arithmetic.

if ($Number % 5 == 0){
   ...;
}

Alternatively, as all multiples of five end in a 5 or a 0, you can do something like this:

if ($Number =~ /^-?[0-9]*[05]$/){
   ...;
}

In both these cases, I'm allowing negative values, like -5 and -10. If you prefer to only allow non-negative values:

if ($Number % 5 == 0 and $Number >= 0){
   ...;
}

if ($Number =~ /^[0-9]*[05]$/){
   ...;
}

[IB2017]

Thank you very much. I like these solutions.