Javascript regular expression for email validation we should not allow duplicate words after @ in the email

Question

 function verifyEmail(component){
        var status = false;
        var emailAddress = component.value;
        if(emailAddress == ""){
            return true;
        }
        var emailRegEx = /^([A-Z0-9._%+-])+@([A-Z0-9.-])+\.([A-Z])+$/i;
             if (!(emailAddress.search(emailRegEx) == -1)) {
                 status = true;
             }
             return status;
    }

This regex accepting duplicate words after @ . Eg: [email protected] Here com word is coming 2 times. we should not allow duplicate words after '@'

Please modify the title or it is a duplicate of [Validate email address in JavaScript?](http://stackoverflow.com/questions/46155/validate-email-address-in-javascript?rq=1). — Wiktor Stribiżew, Mar 03 '16 at 09:36
In the email address after @ duplicate words not allowed. I have given one emailRegEx it is not working. Can you provide any suggestions.If i give [email protected] it is taking. — Ravi, Mar 03 '16 at 14:41
after@ there should not be any duplicate words. Eg: [email protected] if we see this email address after @ there are two infy words and two com words . those duplicates we should not allow — Ravi, Mar 03 '16 at 14:43

score 0 · Answer 1 · answered Mar 03 '16 at 09:41

0

 var emailRegEx = /[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?/

answered Mar 03 '16 at 09:41

Rhushikesh

3,630
8
45
82

it is not working it is allowing duplicate words. – Ravi Mar 03 '16 at 12:11

score 0 · Answer 2 · answered Mar 03 '16 at 09:42

0

you can use this /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+.[a-zA-Z]{2,4}$/

answered Mar 03 '16 at 09:42

Shobhit Walia

496
4
19

it is not working it is allowing duplicates – Ravi Mar 03 '16 at 12:11
after@ there should not be any duplicate words. Eg: [email protected] if we see this email address after @ there are two infy words and two com words . those duplicates we should not allow – Ravi Mar 03 '16 at 14:42

Javascript regular expression for email validation we should not allow duplicate words after @ in the email

2 Answers2