Regular Expression for a number divisible by 100

[JimboTheGiant]

Hi

I need the regular expression to tell me if a value is divisible by 100. So it needs to check if the last 2 digits of a value are both zero's.

Does anybody know this off the top of their head? I'm not too up on regular expressions myself.

Any help would be appreciated

Jim

 

[Yeggstry]

If you've already got the value as an integer/double you can do:

if( value % 100 == 0)
{
//value ends with two zeros
}else{
//value doesn't end with two zeros
}

Java syntax

EDIT: the % value is for modulus, see here for more info: http://en.wikipedia.org/wiki/Modulo_operation

 

[Sic]

that works in php too. regex isn't what you need for this

 

[robmiller]

If you really need a regular expression, rather than just doing a modulus as above, then:

/00$/

 

[JimboTheGiant]

Thanks guys

I needed the regular expression for a javascript form validation.

Jim

 

[Sic]

the modulus operator can also be used in Javascript

 

[Dj_Jestar]

if someone enters a decimal, you may have issues.

 

[Yeggstry]

I would hope that you are checking to see that the value is NaN anyway, so surely you could check the value is NaN, assign it to a variable then do the modulus check?

 

[Daveyboyuk]

I would hope that you are checking to see that the value is NaN anyway, so surely you could check the value is NaN, assign it to a variable then do the modulus check?

Agree. You should be type-checking and then validating, therefore you should not really be using reg ex.