Udemy-1: Custom List, Constructor, Return data, Shuffle

void main() {
  var deck = new Deck();
deck.shuffle();
  print(deck);
}

class Deck {
  List<Card> cards = [];
  Deck() {
   
    var ranks = ['ACE', 'TWO', 'THREE', 'FOUR', 'FIVE'];
    var suits = ['DIAMONDS', 'HEARTS', 'CLUBS', 'SPADES'];

    for (var rank in ranks) {
      for (var suit in suits) {
//         print("rank: $rank & suit: $suit");
        var card = new Card(rank, suit);
        cards.add(card);
      }
     
    }
  }
 
      toString() {
      return cards.toString();
    }
 
  shuffle(){
    cards.shuffle();
  }
 
}

class Card{
  String rank;
  String suit;
  Card(this.rank, this.suit);
 
  toString(){
    return "$rank of $suit";
  }
}