Validating email address javascript

20 Oct

If the input email address satisfies our regular expression, ‘test’ will return true otherwise it will return false. You can call this method whenever you want to validate email address.

We can validate email address at client side and server side.

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This is a code snippet for basic Java Script to validate email address using a regular expression.

This is building on my previous post on how to use regular expressions with j Query. Update 12/05/13: Separated into versions for testing.

The best option is to ask the user to type their e-mail in twice and if you MUST use a regex checker, then tell the user that their e-mail address does not appear to be valid and ask if they are sure they typed it right.Example: Directions: Simply cut and paste the below code into the section of your page.It contains a form with one box that is checked for "email validity".If not, the form submition is canceled, and the surfer prompted to re-enter a valid address.The script makes the following assumptions regarding what a valid email address is: -Contains a least one character procedding the "@" -Contains a "@" following the procedding character(s) -Contains at least one character following the "@", followed by a dot (.), followed by either a two character or three character string (a two character country code or the standard three character US code, such as com, edu etc) Note that this script requires NS 4 or IE 4 to function- all other browsers will simply not participate in the form validation process.Though this solution may be simple, I'm sure this is one of those useful things that people will be Googling for and deserves its own entry on the site If only Google would be the first place to look :) Just look at the duplicates of this closed every some time.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.We have different regular expression patterns for validating email address.In this article, I am sharing some useful cross browsers regular expression patterns for validating email address with java script and jquery.