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)

Answer 1

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

Answer 2

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,',');"