Question

I want to create a regular expression such that it can accept following values:-

100, 100.00, (100),(100.00),$100, $100.00, $(100), $(100.00)

and I am succeed in building the following regular expression:-

/^(\$?(?=\d*(\.\d{1,3})?$))|^(\$?\((?=\d*(\.\d{1,3})?\)$))/

but above regex fails if the value is just $

I want if the value is just $ then it should give not accept it..

But at the same time it should accept blank value also..

Please help me.

Thanks in advance

Answer 1

It seems that your integer part is never optional, so you should make sure the regex makes it mandatory (right now, even the empty string would pass your regex):

/^\$?(?:\d+(?:\.\d{1,3})?$|\(\d+(?:\.\d{1,3})?\)$)/

\d+ means “one or more digits”.