topex-psy

void main() {
  var spacecraft = Spacecraft("Roket 101", type: SpacecraftType.lander, launched: DateTime.tryParse("2022-01-02"));
  spacecraft.launchDate = "2021-01-02";
  spacecraft.describe();
}

enum SpacecraftType {
  flyby,
  orbitter,
  lander,

topex-psy

void main() {
  double kuadrat(double n) {
    return n * n;
  }
  
  print(kuadrat(20));
  
  var spacecraft = Spacecraft("Roket 101", launched: DateTime.tryParse("2022-01-02"));
  spacecraft.launchDate = "2021-01-02";
  spacecraft.describe();

topex-psy

void main() {
  String? nama = "Taufik";
  const umur = 20;
  double? tinggi = 175.436537;
  bool? isMarried;
  bool isHasJob = true;
  final jobs = <String>["Programmer", "Web Developer", "Software Engineer"];
  final bio = {
    "Nama": nama ?? "Anonim",
    "Umur": "$umur tahun",

topex-psy

void main() {
  var nama = "Taufik";
  const umur = 20;
  final double? tinggi;
  bool? isMarried;
  bool isHasJob = true;
  final jobs = <String>["Programmer", "Web Developer", "Software Engineer"];
  
  // tidak bisa karena constant
  // umur = 25;

topex-psy

void main() {
  String nama = "Taufik";
  int umur = 20;
  double tinggi = 175.35464;
  bool isMarried = false;
  bool isHasJob = true;
  String bio = """
  Hello, I'm Taufik
  I am Software Engineer
  """;