DMarlon Studio
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Advanced Dart course

For those who know the basics: the techniques used in real projects. In DMarlon Studio, Dart is the language of the Flutter targets (mobile and desktop): design the screens on the phone canvas and the studio writes the Dart.

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  1. 1Classes and initializer listsDefine Dart classes with final fields, this-shorthand constructors and initializer lists that prepare the data before the constructor body runs.Lesson 1
  2. 2Named and factory constructorsBuild Dart objects in several ways: named, redirecting and private constructors, plus factory constructors that validate input or reuse objects.Lesson 2
  3. 3Getters, setters and private membersProtect the state of your Dart classes with private members (_), computed getters and validating setters, using a bank account as the example.Lesson 3
  4. 4Inheritance and @overrideInherit Dart classes with extends, pass data to the parent with super and replace methods with @override, using a payroll example.Lesson 4
  5. 5Abstract classes and interfacesDefine contracts in Dart with abstract classes and interfaces, and see the difference between extends and implements with several payment methods.Lesson 5
  6. 6MixinsReuse behaviour in Dart with mixins: with to apply them, on to restrict them and abstract members that ask the class for data.Lesson 6
  7. 7Extension methodsAdd methods and getters to int, String or List in Dart with extensions, generic ones included, without subclassing or changing those classes.Lesson 7
  8. 8Enhanced enumsGive your Dart enums fields, a constructor and methods, and use one to model an order's life cycle with a switch the compiler checks.Lesson 8
  9. 9GenericsWrite generic classes and functions in Dart, with bounded types (extends) and type inference, using an in-memory repository and a groupBy function.Lesson 9
  10. 10Records and destructuringReturn several values without writing a class using Dart 3 records, and destructure them into variables, in loops and in swaps.Lesson 10
  11. 11Patterns and sealed classesModel a screen's states with Dart 3 sealed classes and handle them with an exhaustive switch, object patterns, when guards and if-case.Lesson 11
  12. 12Operators, == and hashCodeDefine operators on your Dart classes, compare objects by value with == and hashCode, and sort them with Comparable, using a Money type.Lesson 12
  13. 13Futures, async and awaitUnderstand Dart Futures and write readable asynchronous code with async and await, simulating server calls with Future.delayed.Lesson 13
  14. 14Future.wait and async errorsRun several requests in parallel with Future.wait in Dart and handle their errors with try/catch, timeout and onError, with output that never changes.Lesson 14
  15. 15Streams with async* and await forCreate Dart streams with async* functions and yield, consume them with await for and transform them with where and map, using a simulated download.Lesson 15
  16. 16StreamController and eventsEmit your own events in Dart with a StreamController and listen to them with listen, onError and onDone, using a shopping cart as the example.Lesson 16
  17. 17Isolates with Isolate.runMove heavy computation off Dart's main thread with Isolate.run, run several isolates in parallel and catch their errors.Lesson 17
  18. 18JSON with fromJson and toJsonRead and write JSON in Dart with jsonDecode and jsonEncode, and turn it into typed objects with fromJson and toJson, just as Flutter apps do.Lesson 18
  19. 19Iterables and generatorsProduce lazy sequences in Dart with sync*, yield and yield*: work with infinite series and compute only what is actually requested.Lesson 19
  20. 20Project: order processingCombine Dart sealed classes, generics, async and JSON in a small order processing system: the logic that sits behind a Flutter app.Lesson 20