Question

I have written a Regex which will take only integers but I need to rewrite this regex to only allow 3 digit before precision and 2 digits after precision

How to do that?

Answer 1

If it must always have 3 digits, a decimal point, and 2 digits, e.g., 412.88, then:

/^\d{3}\.\d{2}$/

If it can be up to 3 digits before and up to 2 after (possibly no decimal point at all) then maybe something like:

/^\d{1,3}(\.\d{1,2})?$/