Validate e-mail with a regular expression
By Bartłomiej Bartel
Simple example of validating a string to check if it is an e-mail.
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<script>
var myEmail = "bart_b@gmail.com";
var anotherEmail = "bartb@gmail.com.pl";
var lastEmail = "bartbgmail.com";
function checkEmail(email) {
var r = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
return r.test(email);
}
console.log("Is " + myEmail + " a proper e-mail? --> " + checkEmail(myEmail));
console.log("Is " + anotherEmail + " a proper e-mail? --> " + checkEmail(anotherEmail));
console.log("Is " + lastEmail + " a proper e-mail? --> " + checkEmail(lastEmail));
</script>
</body>
</html>