How to validate an email address in JavaScript

Question

How can an email address be validated in JavaScript?

Answer 1

For validating an email address in JavaScript you can use regular expressions which is the best way.

Below is the code for the same:-

function validateEmail(email) { 

var re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/; 

return re.test(String(email).toLowerCase()); 

}