Question

This is my expression
I m checking for allow only 0-9 digits

var alphaExp = /^[0-9]+$/;

 if (!txtRate.value.match(alphaExp)) {

              alert("Rate should be numeric.");
              txtRate.focus();
              return false;

          }

I want .(dot) also at last third position ..
if this is my expression 10000.00 (no alert generate for this)

Thanks

Answer 1

You can use this:

/^\d+(\.\d\d)?$/

Which says one ore more digits, optionally followed by a decimal point and two more digits. \d is just a shorthand for [0-9]