Dart Code Sample #1

main.dart

void main() {
  // Declaring Variables
  var productName = 'Raspberry Pi'; // type inference (String)
  int itemQuantity = 42; // type annotation - better
  double itemPrice = 3499.00;
  bool isDiscounted = true;
  double discount = .10;

  print(productName);
  print('Qty: $itemQuantity'); // string interpolation

  if (isDiscounted) {
    print('Discounted Price: ${itemPrice - (itemPrice * discount)}');
  } else {
    print('Retail Price: $itemPrice');
  }

  List<String> itemParts = [
    'Raspberry Pi',
    'Power Supply',
    'Memory Card',
    'Official Case',
  ];

  print('Kit includes:');
  for (int i = 0; i < itemParts.length; i++) {
    print('$i. ${itemParts[i]}');
  }

  Map<String, String> itemModels = {
    'a32082': '3 Model B',
    'a020d3': '3 Model B+',
    'c03111': '4 Model B',
  };

  print('Models available:');
  for (String key in itemModels.keys) {
    print('$key - ${itemModels[key]}');
  }
}