Not accepting capital letters but it should

I have a a REGEX for v开发者_如何学JAVAerifications of user email addresses. The issue is, it's not accepting them in capitals even though it should.

Example:

OK => example@gmail.com
NOT OK => EXAMPLE@GMAIL.COM

Here is the REGEX

/^([A-Za-z0-9_\-\.\'])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,6})$/

I want it to accept both, how do I do make it work?

Thanks.

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try this one ^([a-zA-Z0-9_\-\.]+)@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-zA-Z]{2,3})$

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Yes, it does match.

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Try this Regex : A simple Javascript Email-Id validation.

function valid_email(email) {
  var re = /^[\w-]+(\.[\w-]+)*@([\w-]+\.)+[a-zA-Z]{2,7}$/;
  if (!email.match(re)) 
    return false;
  else 
return true;
}