How can I use a regex to tell if a string has 10 digits?
I need to find a regex that tests that an input string contains exactly 10 numeric characters, while still allowing other characters in the string.
I'll be stripping all of the non-numeric characters in post processing, but I need the regex for client-side validation.
For example, these should all match:
- 321225 -1234AAAA
But these should not:
- 123456789 (not enough digits)
- 12345678901 (too many digits)
This seems like it should be very simple, but I just can't figure it out.
Basically, match any number of non-digit characters, followed by a digit followed by any number of non-digit characters, exactly 10 times.
May be a simpler way, but this should do it.
Though the regex gets easier to handle if you first strip out all non-numeric characters then test on the result. Then it's a simple