RegExLib.com - The first Regular Expression Library on the Web!

Recently I've been forced to validate phone numbers in a variety of formats, with all sorts of whitespace, dashes, parenthesis, etc. I didn't want to hassel with matching all that junk, I just wanted the 10 numbers! So I wrote this expression which captures 10 digits in a string if there are exactly 10 digits. Anything else is allowed so long as there are 10 numbers. In .Net, You just loop through the Captures collection of Groups[1] of your Regex.Match object and concatenate the Capture.Value strings to get a simple, pure 10 digit phone number. ( myMatch.Groups[1].Captures )