Email validating

~ characters are legal in the local part of an e-mail address but in the above regular expression those characters are filtered out. It begins with at least one or more word characters including the underscore, equivalent to [A-Za-z0-9_].

It depends on the frequency in which you need to maintain email lists.

Here’s a fairly common code sample from Rails Applications with some sort of authentication system: If you’re experienced at Regex, this seems simple. Sections 3.2.4 and 3.4.1 of the RFC go into the requirements on how an email address needs to be formatted and, well, there’s not much you can’t do in your email address when quotes or backslashes are involved.

If (like me when I first saw this) you AREN’T experienced at Regex, it takes a while to parse. The local string (the part of the email address that comes before the @) can contain any of these characters: is a valid email address. For this reason, for a time I began running any email address against the following regular expression instead: Simple, right? This is often the most I do and, when paired with a confirmation field for the email address on your registration form, can alleviate most problems with user error.

To get a valid email id we use a regular expression /^\w ([\.-]?

If you need to verify your email lists on a regular basis, then you should purchase a monthly subscription.

In case you have only one email list and would like to pay for it once, then we recommend purchasing a "Pay As You Go" package.

This article covers how to validate form data within your form's Web content.

One of the features of HTML5 is the ability to validate most user data without relying on scripts.

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attribute to turn off the browser's automatic validation; this lets our script take control over validation.

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