Dart Tutorial

The language behind Flutter — cross-platform mobile, web and desktop apps.

Start the Dart tutorial →

What you'll learn

1. Dart Introduction

What Dart is, its relationship to Flutter, installing it or using DartPad, and hello world.

2. Syntax and Variables

Variables, sound null safety with ?, late and !, built-in types, and control flow in Dart.

Classes, named and factory constructors, mixins, and inheritance in Dart.

Future, async/await, Stream, and error handling in asynchronous Dart code.

5. Testing in Dart

The test package, test/group/expect, matchers, and testing asynchronous Dart code.

6. Packages and pub.dev

pubspec.yaml dependencies, semantic versioning with ^, pubspec.lock, and publishing a package.

7. Dart Interview Questions

Real Dart interview questions and answers on null safety, Future vs Stream, and mixins.