Email Validation in jQuery using RegExp

Question

I have to validate a email field which can contain multiple email address separated by (;). The following is the code i used

$("body").find(".reqEmail").filter(function(){
        var regex = new RegExp(/^[_A-Za-z0-9-]+[^(),:;<>\\[\\]@]*@[^(),:;<>\\[\\]@]*(\\.[A-Za-z]{2,})+$/);///^([a-zA-Z0-9_.+-])+\@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/;
        var email=$(this).val()
        if(regex.test(email)==false){
                e.preventDefault();
                $(this).css("border","solid 1px red");
                $(this).parent().find("#ReceAppEmail").html("Invalid Email!!");
                }
                else{return true;}
    });

It always give the error message, even i insert 1 email address. I cannot find where i went wrong. any suggestions?
FYI: This is included in the form submission (onsubmit)

You should split on the string with ";" then parse each one indiviually — Daemedeor
– Daemedeor, Commented Jun 11, 2015 at 4:28
The error message means i am getting the error which supposed to get when enters the invalid email @Stef — Kuru
– Kuru, Commented Jun 11, 2015 at 4:29

rsnorman15 · Accepted Answer · 2015-06-11 04:31:57Z

3

You can grab all the email addresses separated by semicolons using the regex below:

/(?:((?:[\w-]+(?:\.[\w-]+)*)@(?:(?:[\w-]+\.)*\w[\w-]{0,66})\.(?:[a-z]{2,6}(?:\.[a-z]{2})?));*)/g

http://regexr.com/3b6al

answered Jun 11, 2015 at 4:31

rsnorman15

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3 Comments

Dipesh Parmar Over a year ago

awesome but i think OP do not want to get valid email, OP actiully wants to validate all emails which are separated by ,

rsnorman15 Over a year ago

Yeah, you're are completely right. I answered before he added his code so it made sense at the time.

rsnorman15 Over a year ago

The above regex is slightly different from just validating an email address that it actually validates all emails separated by a semicolon too. The captured groups should be the individual emails.

Dipesh Parmar · Accepted Answer · 2015-06-11 05:32:17Z

1

You can do this by below code.

function validatecommSeptEmail(commSeptEmail)
{
    var regex = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,5}$/;
    return (regex.test(commSeptEmail)) ? true : false;
}

function validateMultiplecommSeptEmails(emailcntl, seperator)
{
    var value = emailcntl.value;
    if (value != '') {
        var result = value.split(seperator);
        for (var i = 0; i < result.length; i++) {
            if (result[i] != '') {
                if (!validatecommSeptEmail(result[i])) {
                    emailcntl.focus();
                    alert('Please check, `' + result[i] + '` email addresses not valid!');
                    return false;
                }
            }
        }
    }
    return true;
}

How to use it?

onblur="validateMultiplecommSeptEmails(this,',');"

edited Jun 11, 2015 at 5:32

answered Jun 11, 2015 at 4:29

Dipesh Parmar

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2 Comments

Kuru Over a year ago

This answer also works, but i can't accept two answers. But the answer by @rsnorman15 is more closer for my requirement

Dipesh Parmar Over a year ago

Well that's fine if you cant accept it, because SO is for helping programmer around the world, so it does not matter if you accept it or not, but we care more that we could help you.

Zohaib Waqar · Accepted Answer · 2015-06-11 04:36:29Z

0

Try this

function validateEmail(email) {
    var regixExp = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
    $(".reqEmail").css("border","solid 1px red");
    $("#ReceAppEmail").html("Invalid Email!!");
    return regixExp.test(email);
}

answered Jun 11, 2015 at 4:36

Zohaib Waqar

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