Dart) 클래스 생성자 및 Named Parameters

생성자 방식1

class Player{
  String? name;
  int? xp;
  
  Player({String? name, int? xp}){
    this?.name = name;
    this?.xp = xp;
  }
  
  void display(){
    print("Hi My name is $name");
  }
}


void main(){
  Player p = Player(name:"asd",xp: 21);
  print(p.name);
  p.display();
}

 

생성자 방식2 (더 간단, 깔끔)

class Player{
  final String name;
  int? xp;
  
  Player({required this.name, this.xp}); //constructor
  
  void display(){
    print("Hi My name is $name");
  }
}


void main(){
  Player p = Player(name:"asd",xp: 21);
  print(p.name);
  p.display();
}