4GuysFromRolla.com - ASPFAQS.com : Email : How can I validate an email adress using Jscript?

4GuysFromRolla.com : ASP FAQS : Email

Question: How can I validate an email adress using Jscript?
[Print this FAQ]

Answer:

Thanks to the help of Hack Kampbjorn my email validation routine using Javascript's regular expressions:

<html> <head> ��<title>regex_new.asp</title> </head> <body> <script language="javascript" runat="server"> function test(src) { ��var regex = /^[a-zA-Z0-9._-]+@([a-zA-Z0-9.-]+\.)+[a-zA-Z0-9.-]{2,4}$/; ��return regex.test(src); } </script> <% if request("email") <> "" then ��Response.write(test(request("email"))) end if %> <form action="regex_new.asp"> ��<input type="text" name="email"> ��<input type="submit" name="submit" value="check email"> </form> </body> </html>

*note - I have specifically left out checks for specific domains such as .com .org etc. I think this level of validation is sufficient. If you need more build it in.

For more information on Email validation, check out: Email Address Validation!

FAQ posted by shedao at 9/24/2000 11:48:56 PM to the Email category. This FAQ has been viewed 74,792 times.

Do you have a FAQ you'd like to suggest? Suggestions? Comments? If so, send it in! Also, if you'd like to be a FAQ Admin (creating/editing FAQs), let me know! If you are looking for other FAQs, be sure to check out the 4Guys FAQ and Commonly Asked Messageboard Questions!

Most Viewed FAQs:
1.) How can I format numbers and date/times using ASP.NET? For example, I want to format a number as a currency. (761643 views)
2.) I am using Access and getting a 80004005 error (or a [Microsoft][ODBC Microsoft Access Driver] The Microsoft Jet database engine cannot open the file '(unknown)' error) when trying to open a connection! How can I fix this problem? (207777 views)
3.) How can I convert a Recordset into an array? Also, how can I convert an array into a Recordset? (202549 views)
4.) How can I quickly sort a VBScript array? (196039 views)
5.) How can I find out if a record already exists in a database? If it doesn't, I want to add it. (156019 views)
6.) How do I display data on a web page using arrays instead of Do...While...MoveNext...???... (152331 views)
7.) When I get a list of all files in a directory via the FileSystemObject, they aren't ordered in any reasonable way. How can I sort the files by name? Or by size? Or by date created? Or... (140381 views)
8.) For session variables to work, must the Web visitor have cookies enabled? (110162 views)
9.) Can I send emails without using CDONTS? (107083 views)
10.) How can I take the result of a SELECT...MULTIPLE or a group of same-named checkboxes and turn it into a query? That is, if the user selects 3 answers, how can I construct a query that looks for all 3? (106308 views)
Last computed at 9/17/2007 3:22:00 AM

Whitepapers and eBooks

Webcasts

Downloads and eKits

Tutorials and Demos