how can you validate an email as invalid when the email don't have the .com in flutter?

I’m wondering, can you validate an email without the .com as invalid in Flutter

Example:
johnny@gmail.com = true
johnny@johnny    = false

>Solution :

What I use for my email validators is this:

String? validateEmail(String email) {
    const String pattern =
        r'^(([^<>()[\]\\.,;:\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,}))$';
    final RegExp regex = RegExp(pattern);
    if (email.isEmpty || !regex.hasMatch(email)) {
      return 'Invalid email';
    } else {
      return null;
    }
  }

hope it helps.

Example:
johnny@gmail.com = true
johnny@johnny.co    = true
johnny@johnny    = false
johnny@    = false
johnny    = false
johnny@johnny.c    = false