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.

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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

In this lesson, you'll learn to use the `await` and `async` keywords to carry out asynchronous operations.

The code that uses `async` and `await` keywords is asynchronous, but it looks appears similar to synchronous code. 

In this lesson, you will see a few examples that use `await` to wait for the result of an asynchronous function to return before executing the next line of code.


# The `await` & `async`

The `await` and `async` keywords are used together. The function that is expected to perform the expensive work will be marked with the keyword `async`. Inside the function, the expensive call is prefixed by the keyword `await`. The program will suspend when `await` is called or a function returns or it reaches the end of the function.

With the following code snippet, we will see how `async` and `await` keywords are used.

`await` can only be called in a function that is marked/declared as `async`.

This lesson covers the usage of  `await` & `async` to fetch results asynchronously using `Future` objects. 

Introduction

Dart Extensions

Dart Enums

Dart Mixins

Dart Generics

Dart Libraries

Asynchronous Programming In Dart

Miscellaneous

Next Steps

Future: `await` & `async`

The `await` & `async`

Future: `await` & `async`

The await & async

The `await` & `async`