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Seo Master present to you: By Lars Bak, Software Engineer

A year ago we released a technology preview of Dart, a project that includes a modern language, libraries and tools for building complex web applications. Today, after plowing through thousands of bug reports and feature requests from the web community, a new, more stable and comprehensive version of Dart is now available and ready to use.



With this version of the Dart SDK, we’ve made several improvements and added many features:

• A faster Dart Virtual Machine that on some Octane tests outperforms even V8.
• A new Dart to JavaScript translator that generates fast and compact output.
• An HTML library that works transparently on modern browsers.
• A library to interoperate with JavaScript code.
• An easy to use editor.
• Pub, a new package manager
• Dartium, a Chromium build with native Dart support.
• A server-side I/O library.
• A language specification describing the Dart semantics, including new features.

Over the following months, we will continue to work hard to evolve the SDK, improve Dart’s robustness and performance, and fine-tune the language while maintaining backwards compatibility.


You can download the Dart Editor from dartlang.org. It comes with a copy of the open-source SDK and Dartium. Thanks again for all your feedback – keep it coming.


Lars Bak is a veteran virtual machinist, leaving marks on several software systems: Beta, Self, Strongtalk, Sun's HotSpot and CLDC HI, OOVM Smalltalk, and V8.

Posted by Scott Knaster, Editor

2013, By: Seo Master

Seo Master present to you: By Sam McCall, Software Engineer

Ever since we launched Dart, the structured web programming language, we've heard developers asking for a way to use Dart to connect to Google's most popular APIs and services. Thanks to Google's 20% time policy, I’m working on an open source library that helps Dart developers connect to Google APIs such as Google+, YouTube, URL Shortener, and many more.

My favorite sample showing you how to build web apps with Dart and Google APIs is roulette. This little app will shorten your URL, or if you're lucky, rickroll you.

This library is currently alpha and under active development. Please report all bugs in the issue tracker and ask questions in the discussion forum. Thanks for the feedback, and have fun!


Sam McCall is an engineer in Google’s Corporate Engineering Team in Munich, and is a part-time Dart tinkerer.

Posted by Scott Knaster, Editor

2013, By: Seo Master

Seo Master present to you:
By Dan Rubel, Productivity Enhancer, Dart Editor team

Cross-posted from the Chromium Blog

Today's release of the Dart SDK and Editor is the first beta release, and contains performance and productivity improvements across the platform. This latest release helps Dart developers automate code evolution, produce smaller JavaScript code and deploy Dart web apps.

The Editor's analysis engine, responsible for reporting warnings and errors, is completely rewritten and is 20% faster at parsing and analyzing. Now, there’s no need to run all the unit tests just to discover a typo. The Dart Editor watches your back as you type.

In addition, Dart Editor makes it easier for developers to manage an evolving app. Some of the new features include:

• "Rename Library" refactoring
• "Convert Method to Getter" and "Convert Getter to Method" refactorings
• "Import Library" quick fix
• "Create Class" and "Create part" quick fixes

Code completion has also improved. For example, completion is now camelcase aware. Type iE and Dart Editor finds isEmpty.

Compiling Dart to JavaScript now results in smaller code. For example, some Dart programs that use reflection and HTML can compile to JavaScript that is 3.7x smaller than previous compilation sizes.

Dart VM performance has also improved. Compared against the previous release of Dart, DeltaBlue is 33% faster and Tracer is 40% faster. This release also includes full SIMD acceleration in Dart VM.

Finally, deploying a Dart web app is now easier, with the beta pub deploy command. It creates a directory with your app's code and assets and prepares it for hosting on your favorite web server. You can use this command from Dart Editor or the pub command-line utility.

That's just the highlights - there are more improvements across the platform. You can read the full release notes for more details and changes. You can download the latest version of Dart Editor, including everything you need for Dart development, from dartlang.org. We look forward to your feedback!

Written by Dan Rubel, Dart Editor Team

Posted by Scott Knaster, Editor

2013, By: Seo Master

Seo Master present to you: By Seth Ladd, Developer Advocate

Sometimes, you only have 5 minutes. Luckily, with the Dart Tips series of short video tutorials, that's all you need to start learning the new Dart language and libraries. In these videos, I show off code samples and examples across the various language features of Dart.

For example, here's a quick demo of the various types of constructors in Dart:



You can check out all the videos, or jump to the topic that most interests you:

1. A simple Dart script
2. Runtime modes
3. Variables
4. Strings, numbers, booleans, oh my!
5. Collections in Dart
6. Functions are fun, Pt 1
7. Functions are fun, Pt 2
8. Control flow statements
9. Exceptions
10. Classes: setters & getters
11. Classes: Constructors

We hope you enjoy these videos about Dart. If you have questions or comments about the videos, or Dart, please join us on the Dart mailing list and on Google+. As we say on Dart Tips, stay sharp!


Seth Ladd is a Developer Advocate on Dart. He's a web engineer, book author, a conference organizer, and loves a game of badminton.

Posted by Scott Knaster, Editor

2013, By: Seo Master