Validate email address using javascript

Question

here's the code that I'm using to validate email address on clicking submit button by the user,

/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(EmailID);

I would like to allow apostrophe(') to the email address entered by the user, what would be the modification for the regex above?

Answer 1

try this:

/^(\w|')+([\.-]?(\w|')+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/

it will allow apostrophe anywhere before the '@'

Answer 2

Your current Regex match the following email address :

• [email protected]
• [email protected]

But doesn't match this :

• [email protected]

If you're just basically trying to validate an email adress containing one apostrophe like this one :

• test'[email protected]

Then just add a quoi in the first bracket :

/^\w+(['.-]?\w+)@\w+([.-]?\w+)(.\w{2,3})+$/

But it still won't match A LOT of email addresses (one with a dash and an apostrophe, one with multiples dash [...]).

Answer 3

Using Regular Expressions is probably the best way. Here's an example (demo):

function validateEmailAddress(emailID) { 
    var emailRgx = /^(([^<>()[\]\\.,;:\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 emailRgx .test(emailID);
}