This Java Script demo verifies that an email address is in the correct format and that the user has typed in the same address in both fields to prevent mistyping of the address.
I have borrowed the regex for verifying the correct email format from a different site. Please note that I have removed the action attribute because this is only a demo and we are only concerned with the client-side verification of the Java Script function.
From other side verifying email sender with our email tracking tool is important and can help you detect spam, fraudulent activity and identify spoof emails.
One of the questions I get asked again and again is how to validate a field value in an Acro Form with a custom validation script.
So, if the user enters ‘01234’ we should see an error message that would instruct the user about what type of data is valid for this field.
As I mentioned before, information is passed to the validation function in the event object, and in the code we see that the member ‘value’ is used to communicate the current value of the field.
One of the most important reasons why consumers want to verify, validate and check an email address is to determine of email where you would like to send your message is "dead" or not.
By validating and verifying emails you can clean list from "dead" mail addresses and prevent undeliverable e-mail messages error into your mail box.
a "personal_info" and a domain, that is [email protected] The length of the personal_info part may be up to 64 characters long and domain name may be up to 253 characters. The personal_info part contains the following ASCII characters.
To get a valid email id we use a regular expression /^\w ([\.-]?