Flutter Part 2: with Dart

Instructon of Dart

Get basic idea of both flutter and dart:

var by Type

Dart build-in types:

String myName;              // myName = 'Esther'
int number;                 // number = 1
double numberFloat;         // numberFloat = 4.12
bool isHot;                 // isHot = true
List<int> numberArray;      // numberArray = [1, 2, 3, ...]
List<String> stringArray;   // stringArray = ['a', 'b', 'c', ...]

See all build-in types on Dart doc.

📌 Know more about Generics in Dart

Pokers by Dart

void main() {
  var deck = new Deck();
  deck.shuffle();
  print(deck.deal(5));
}

class Deck {
  List<Card> cards = [];

  Deck() {
    var suits = ['Daimonds', 'Hearts', 'Clubs', 'Spades'];
    var ranks = ['Ace', '2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K'];

    for (var s in suits) {
      for (var r in ranks) {
        var card = new Card(
          rank: r,
          suit: s,
        );
        cards.add(card);
      }
    }
  }

  toString() {
    return cards.toString();
  }

  shuffle() {
    cards.shuffle();
  }

  cardsWithSuit(String suit) {
    return cards.where((card) => card.suit == suit);
  }

  deal(int handSize) {
    var hand = cards.sublist(0, handSize);
    cards = cards.sublist(handSize);
    return hand;
  }

  removeCard(String suit, String rank) {
    cards.removeWhere((card) => (card.suit == suit) && (card.rank == rank));
  }
}

class Card {
  String suit;
  String rank;

  Card({this.rank, this.suit});

  toString() {
    return '$rank of $suit';
  }
}