Homework from September 22

main.dart

void main() {
  // types
  int a = 1;
  double b = 2.1;
  String c = 'hello';
  Object d = 2.1;
  d = 1;
  d = 'hello';
  dynamic e = 1;
  e = 'hello';

  // is
  print(a is int); // true
  print(b is String); // false

  // converting types
  var myInt = 8;
  var myDouble = myInt.toDouble();
  print(myDouble is double); // true

  // mixing types
  int x = 2;
  double y = 4.9;
  var z = x + y;
  print(z is double); // true

  // dividing int gives double
  const answer = 4 / 4;
  print(answer is double); // true
}