Email Validation

https://www.w3resource.com/javascript/form/email-validation.php

 function ValidateEmail(mail)

{ if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(myForm.emailAddr.value)) { return (true) } alert("You have entered an invalid email address!") return (false) }