void main() {
  var eros = Employee('Erős István', 'Szeged');
  var deli = Employee('Erős István', 'Szeged');
  
  print(identical(eros, deli));
  print(eros == deli);

}

class Employee {
  final String name;
  final String city;  
  const Employee(this.name, this.city);
}