javascript function to check if the email address is valid Edit

Subtitle with Paragraph

Here is the sample script written using regex to check if the email is valid

Email valid script

function emailvalid(str) {
    var pattern = /^\w @[a-z0-9A-Z_] ?\.[a-z0-9A-Z]{2,3}$/;
    var match = str.match(pattern);
    if (match == null) {
        return false;
    } else {
        return true;
    }
}

call it by using the code below
var str = $("#email").val();
emailvalid(str)