Class methods

void main(){
    final erik = User(nickname: 'Amogus', age: 3, height: 3.47);
    erik.sayHi();
    //erik.printUser(erik);
    User.printUser(erik);
}

class User{
    User({required this.nickname, required this.age, this.height=2});
    final String nickname;
    final int age;
    final double height;
    
    sayHi(){
      print("Hi");
    }
  
    static printUser(User u){
      print("Nickname: ${u.nickname} | Age: ${u.age} | Height: ${u.height}");
    }
}