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: Finally, the email address must end with two to four alphabets.
Having a-z and A-Z means that both lowercase and uppercase letters are allowed.
Copyright © 2008 The Extensible Markup Language (XML) is a subset of SGML that is completely described in this document.
Its goal is to enable generic SGML to be served, received, and processed on the Web in the way that is now possible with HTML.
XML has been designed for ease of implementation and for interoperability with both SGML and HTML.
This section describes the status of this document at the time of its publication. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at
Please refer to the errata for this document, which may include some normative corrections.
The previous errata for this document, are also available. This document is also available in these non-normative formats: XML and XHTML with color-coded revision indicators.
Last month I wrote about regular expressions in Java, today I’ll show you how to use regular expression in Java Script to validate email address.