Email regular expressions

[newbby]

Hi,
How can I validate an email in this format using regular expressions: alphanumeric@something.com OR alpha.alpha@something.com. I am only certain about the @something.com, the prefix can change. Thanks in advance.

 

[kaht]

This is the email regex that I use (I didn't write it and I can't remember where I got it):

function checkForEmail(str) {
   return ((/\w+((-\w+)|(\.\w+)|(\_\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z]{2,5}/).test(str))
}

-kaht

 

[vbkris]

TheStr="EmailId"
if(!TheStr.match(/^[a-z]([\-_\.]?[a-z0-9]+)*@([a-z0-9]+([\-_][a-z0-9]+)*\.)+[a-z]{2,}$/ig))
{
alert("Invalid email.")
}

Rules:
allows _,-,.
last characters must be alphabets (atleast 2 in length)....

Known is handfull, Unknown is worldfull

 

[newbby]

Hi All,
Thanks for all the help. But I guess I might have miscommunicated. I know for sure that the suffix in the email "@something.com" will be same. What I am not sure about is the prefix for the email can be either alphanumerics or alpha.alpha like in "alphanumerics@something.com" or "alpha.alpha@something.com". I need to validate the prefix using regular expression. The code provided by you actually checks the entire string in the email. Thanks

 

[kaht]

So why not take the portion of our regex's before the @ symbol and add the rest of your @something.com to it? It'd be the same thing.

-kaht

 

[vbkris]

yup...

Known is handfull, Unknown is worldfull