Get the Dart SDK

This page describes how to download the Dart SDK. The Dart SDK has the libraries and command-line tools that you need to develop Dart command-line, server, and non-Flutter web apps. For details, see the Dart SDK overview.

As of Flutter 1.21, the Flutter SDK includes the full Dart SDK. So if you have Flutter installed, you might not need to explicitly download the Dart SDK. Consider downloading the Dart SDK if any of the following are true:

• You don’t use Flutter.
• You use a pre-1.21 version of Flutter.
• You want to reduce disk space requirements or download time, and your use case doesn’t require Flutter. For example, you might have a continuous integration (CI) setup that requires Dart but not Flutter.

Installing the Dart SDK

As the following instructions show, you can use a package manager to easily install and update a stable channel Dart SDK. Alternatively, you can build the SDK from source or install from any release channel by downloading the SDK as a zip file.

Dart tools may send usage metrics and crash reports to Google. By downloading the Dart SDK, you agree to the Google Terms of Service. Note: The Google Privacy Policy describes how data is handled in this service.

To control the submission of metrics, use the following options on the dart tool:

• —enable-analytics : Enables anonymous analytics.
• —disable-analytics : Disables anonymous analytics.

• Windows
• Linux
• macOS

You can install the Dart SDK using Chocolatey.

Important: These commands require administrator privileges. If you need help on starting an administrator-level command prompt, try a search like cmd admin.

To install the Dart SDK:

To upgrade the Dart SDK:

If you’re using Debian/Ubuntu on AMD64 (64-bit Intel), you can choose one of the following options, both of which can update the SDK automatically when new versions are released.

Install using apt-get

Perform the following one-time setup:

Then install the Dart SDK:

Install a Debian package

Alternatively, download Dart SDK as Debian package in the .deb package format.

Modify PATH for access to all Dart binaries

After installing the SDK, add its bin directory to your PATH . For example, use the following command to change PATH in your active terminal session:

To change the PATH for future terminal sessions, use a command like this:

Install Homebrew, and then run the following commands:

Important: Make sure the Homebrew bin directory is in your PATH . Setting up the path correctly makes it easier to use Dart SDK commands such as dart and dart format . For help setting up your path, consult the Homebrew FAQ.

To upgrade when a new release of Dart is available:

To switch between locally installed Dart releases, use brew switch dart . Example:

Version note: The brew switch command was removed after the 2.6 release of Homebrew. To continue using brew switch , downgrade Homebrew to a 2.6 version:

To see which versions of Dart you’ve installed:

System requirements

The Dart SDK is supported on Windows, Linux, and macOS.

Windows

• Supported versions: Windows 10.
• Supported architectures: x64, ia32.

Linux

• Supported versions: Recent Linux versions, but only Ubuntu 16.04 is tested.
• Supported architectures: x64, ia32, arm, arm64.

Note: The arm support requires glibc 2.23 or newer due to a dynamic linker bug.

macOS

• Supported versions: Latest three major versions. As of April 2021, the following versions are supported:
  • macOS 10.14 (Mojave)
  • macOS 10.15 (Catalina)
  • macOS 11 (Big Sur)
• Supported architectures: x64. Support for arm64 is in progress.

About release channels and version strings

The Dart SDK has three release channels:

Stable channel: stable releases, updated roughly every three months; currently [calculating] .

Stable releases are suitable for production use.

Beta channel: preview releases, usually updated every month; currently [calculating] .

Beta channel builds are preview builds for the stable channel. We recommend testing, but not releasing, your apps against beta to preview new features or test compatibility with future releases.

Dev channel: prereleases, usually updated twice a week; currently [calculating] .

Dev channel releases are the most current with latest changes, may be broken, are unsupported, and may contain unvetted breaking changes.

Stable channel releases of the Dart SDK have x.y.z version strings like 1.24.3 and 2.1.0 . They consist of dot-separated integers, with no hyphens or letters, where x is the major version, y is the minor version, and z is the patch version.

Beta and dev channel releases of the Dart SDK (non-stable releases) have x.y.z-a.b. versions like 2.8.0-20.11.beta . The part before the hyphen follows the stable version scheme, a and b after the hyphen are the prerelease and prerelease patch versions, and beta or dev is the channel.

You can get stable channel releases using the instructions above, or you can get stable, beta, or dev channel releases using a package manager or by downloading the SDK as a zip file.

Install the Dart SDK on Windows 10

Dart is a programming language that has easy to learn syntax. It comes with various features that are maintained by the Google Dart Team. Dart is used to making cross-platform development easy. It is has a framework called Flutter aimed to create Android, iOS, Web, and Desktop applications from a single code base.

Dart SDK has three types of SDK channels.

Stable Channel — Stable Channel SDK is ready to use SDK at the production level. You can use it without worrying about the bugs in the code.

Beta Channel — Beta Channel is for the preview of the new features coming up for stable release in the next update. It is advised to use it for testing out new features in your app but not publish it for customers until the next update.

Dev Channel — Dev Channel has all the newest features coming from the developers. It has a high risk of bugs and highly unstable.

For this article, we will install the Stable Version but installation is the same for all other channels.

Step 1: Download the Dart SDK Zip file

=> Go to the Dart SDK Archive Page and download the Dart-SDK file.

=> Click on the Dart SDK link. In a short while, the download will begin.

Step 2: Extract the zip file

=> Extract the zip file into a folder named src in C: drive.

While Extracting ensure that there is no space in the folder name in your path like “Program Files”.

Step 3: Navigate to Dart SDK folder in Command Prompt

=> Navigate to the “ dart-sdk\bin” folder in the command prompt.

=> Open the bin folder in windows explorer, clear the address bar and type “ cmd” to open the command prompt.

=> Next type “ dart” in command prompt and press Enter.

Step 4: Add Dart Path to the Environment Variable

Environment Variables help us to use the dart-SDK from anywhere in the Computer. Add dart bin path to the Environment Variables.

=> Open the Environment Variable. Under System Variables click on Path and click the Edit button.

=> Click on New and add the dart path till the bin folder. Don’t forget to add bin your path.

Step 4: (Optional) Test the dart-SDK installation

=> Finally, Open up the command prompt and enter the command “ dart”.

How to install Dart on Windows?

Install Dart on Windows

In this tutorial, we will provide a step by step process to get Dart installed on Windows.

Dart SDK comes as a pre-compiled version. So, download and extracting is all you need to do.

Step 1: Download Dart SDK

Go to Dart SDK archive page.

The URL is https://dart.dev/tools/sdk/archive.

Click on the Dart SDK link. The download will start immediately and a zip file will be downloaded.

Step 2: Extract zip file

Extract the contents of Dart SDK zip file. The contents of the folder would be as shown below.

Step 3: Run Dart

You can run Dart command. Yeah!

Open command prompt and navigate to the bin folder.

Run the command dart .

Step 4: Add Dart Path to PATH Environment Variable

As of now, you can run dart command only from bin folder of dart sdk. To run dart command from anywhere in your file system, add dart bin path to PATH environment variable.

Open Environment Variables. Under System variables, click on Path and click Edit button.

Edit environment variable window appears. Click on New and paste the dart sdk bin path as shown below.

Click on OK. The changes will take effect if you restart your command prompt.

Step 5: Restart Command Prompt

Close the existing command prompt window and open a new command prompt.

Just run the dart command from any working directory. We shall run from D:\ .

Conclusion

In this Dart Tutorial, we learned how to install Dart on Windows, to work with Dart programming.

Дартс Программирование — Окружающая среда

В этой главе обсуждается настройка среды выполнения для Dart на платформе Windows.

Выполнение скрипта онлайн с помощью DartPad

Вы можете проверить свои сценарии в Интернете с помощью онлайн-редактора по адресу https://dartpad.dartlang.org/ . Dart Editor выполняет сценарий и отображает как HTML, так и вывод консоли. Онлайн-редактор поставляется с набором предустановленных примеров кода.

Скриншот редактора Dartpad приведен ниже —

Dartpad также позволяет кодировать более ограниченным образом. Это можно сделать, установив опцию Strong mode в правом нижнем углу редактора. Сильный режим помогает с —

• Более сильная статическая и динамическая проверка
• Генерация идиоматического кода JavaScript для лучшей совместимости.

Вы можете попробовать следующий пример, используя Dartpad

Код будет отображать следующий вывод

Настройка локальной среды

В этом разделе давайте посмотрим, как настроить локальную среду.

Использование текстового редактора

Примерами нескольких редакторов являются Windows Notepad, Notepad ++, Emacs, vim или vi и т. Д. Редакторы могут отличаться в разных операционных системах. Исходные файлы обычно называются с расширением «.dart».

Установка Dart SDK

Текущая стабильная версия Dart — 1.21.0 . DART SDK можно скачать с —

Скриншот установки Dart SDK приведен ниже —

По завершении установки SDK установите для переменной среды PATH значение —

Проверка установки

Чтобы убедиться, что Dart был успешно установлен, откройте командную строку и введите следующую команду:

Если установка прошла успешно, она покажет время выполнения дротика.

Поддержка IDE

Множество IDE поддерживают скриптинг в Dart. Примерами могут служить Eclipse, IntelliJ и WebStorm от компании Jet Brains.

Ниже приведены шаги по настройке среды Dart с использованием IDE WebStrom .

Установка WebStorm

Установочный файл WebStorm доступен для Mac OS, Windows и Linux.

После загрузки установочных файлов выполните следующие действия:

Установите Dart SDK: см. Шаги, перечисленные выше

Создайте новый проект Dart и настройте поддержку Dart

Чтобы создать новый проект Dart,

Нажмите Создать новый проект на экране приветствия.

В следующем диалоговом окне нажмите Dart

Если для пути Dart SDK не указано значение, укажите путь SDK. Например, путь SDK может быть / dart / dartsdk .

Установите Dart SDK: см. Шаги, перечисленные выше

Создайте новый проект Dart и настройте поддержку Dart

Чтобы создать новый проект Dart,

Нажмите Создать новый проект на экране приветствия.

В следующем диалоговом окне нажмите Dart

Если для пути Dart SDK не указано значение, укажите путь SDK. Например, путь SDK может быть / dart / dartsdk .

Добавить файл дротика в проект

Чтобы добавить файл Dart в проект —

• Щелкните правой кнопкой мыши на проекте
• New → Dart File
• Введите имя скрипта дротика

Скриншот редактора WebStorm приведен ниже —

Инструмент dart2js

Инструмент dart2js компилирует код Dart в JavaScript. Компиляция кода Dart в JS позволяет запускать сценарий Dart в браузерах, которые не поддерживают виртуальную машину Dart.

Инструмент dart2js поставляется как часть Dart SDK и находится в папке / dartsdk / bin .

Чтобы скомпилировать Dart в JavaScript, введите в терминале следующую команду

Эта команда создает файл, который содержит JavaScript-код вашего кода Dart. Полное руководство по использованию этой утилиты можно найти на официальном сайте Dart.