Gain insights into Dart's object-oriented features, explore extensions, enums, mixins, and asynchronous programming. Discover hands-on code practice to confidently apply Dart in your projects.

dart.tar.gz

dart2_7

Dart is a fully object-oriented, class-based, simple, and clean language. Google’s popular mobile framework, Flutter uses Dart language to implement high-quality native applications, so it’s recommended that you understand Flutter before beginning this course.

In this course, you will dive deep into Dart 2 language features while using interactive hands-on code playgrounds. This course will help you become confident with Dart extensions, enums, mixins, generics, libraries, asynchronous programming, class variables, callable classes, and generator functions.

By the end of this course, you will have a strong understanding of Dart principles, and you’ll be ready to start using this powerful language in your own projects.

Developing Web Applications with Dart

# Challenge #1

Use `async/await` to fetch a result from the `calculateSquare(int num)` API.

```dart
// Assume this function takes long time to return in real-world.
int getSquare(int num) {
  return num * num;
}

// This is the asynchronous function that makes the expensive
// data call and returns the results.
Future<int> calculateSquare(int num) async {
  return await getSquare(num);
}
```

# Try it yourself

Solve the challenge in the code editor provided below:

Test your knowledge of asynchronous operations.

Introduction

Dart Extensions

Dart Enums

Dart Mixins

Dart Generics

Dart Libraries

Asynchronous Programming In Dart

Miscellaneous

Next Steps

Challenge

Challenge #1