Valid email address in JavaScript using RegularExpression

Question

I have to valid email address in JavaScript. My method is

function validateEmail(email) 
{
    var re = /^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/;

    return re.test(email);
}

Issue is that Visual Studio is not accepting the Regular Expression and giving error when i run the application. The error is

No, its javascript and i am using it in .cshtml file of ASP.NET MVC — Waleed Naveed, May 13 '19 at 09:33
Should JS inside a cshtml file be in a string? Otherwise it might be confused for c#. — evolutionxbox, May 13 '19 at 09:36
Related: [How to validate an email address using a regular expression?](https://stackoverflow.com/q/201323/1364007). — Wai Ha Lee, May 21 '19 at 03:40

score 3 · Accepted Answer · edited May 13 '19 at 10:28

3

Try escaping @. @@ will render as @

function validateEmail(email) 
{
    var re = /^[_a-z0-9-]+(\.[_a-z0-9-]+)*@@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/;

    return re.test(email);
}

edited May 13 '19 at 10:28

Wai Ha Lee

answered May 13 '19 at 09:34

Alex

score 0 · Answer 2 · answered May 13 '19 at 10:42

0

Try this regex:

^\w+([.]\w+)*@\w+([.]\w+)+$

answered May 13 '19 at 10:42

2 Answers2