Even go so far as to point out WHAT did not check out in the regexp check, but do NOT stop them from submitting the form.
But keep in mind that one should not rely only upon Java Script validation. This should be validated on the server side as well.
Date Validation Email Validation Phone Number Validation U.
This is a code snippet for basic Java Script to validate email address using a regular expression.
Any support for use of regex checks for e-mails I am 100% against.Here's an example of the above in action: Almost all answers to this questions suggest using Regex to validate emails addresses.I think Regex is only good for a rudimentary validation.It seems that the checking validation of email addresses is actually two separate problems: 1- Validation of email format: Making sure if the email complies with the format and pattern of emails in RFC 5322 and if the TLD actually exists. For example, although the address Thank you for your interest in this question.Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).