Hi, I'm trying to create a sign up form where after the user inputs their email address when they click or tab down to the next field (username field) it auto-populates it with their email address but with the "@xxxxx.xxx" section stripped from it. i.e. if the user puts "j...@johndoe.com" into the email field when they tab to the username field it will auto-populate with "john".
I have achieved auto-populating the field with the email address but I'm not sure how to remove the "@johndoe.com" part. Thanks for any help you can provide!
