Skip to main content

Celebrating Dart’s birthday with the first release of the Dart SDK

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:

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 It comes with a copy of the open-source SDK and Dartium. Thanks again for all your feedback - keep it coming.

(Cross posted from Chromium blog)


  1. Looks cool! Looking forward to giving it a go soon :) I'm not a huge fan of JavaScript although I've used it quite a bit, here to hoping someone will do a Dart version of Node.js.

    1. Dart already has a Node.js-style library for server work, look at the documentation for the dart:io library.

  2. Nice Job!!!!
    Congratulations to the team of Googgle Dart!!!

  3. I'm still didn't get it,
    Dart translated to JavaScript,
    Why I didn't just use JavaScript as usual?
    Why Dart?

    1. @linverno - Take a look at my recent blog post, and see if that helps answer "Why Dart."

  4. This comment has been removed by the author.

    1. Congrats! Also time to update description on this page: "Dart is an open source project and is currently in Technology Preview."

  5. Nixarn, the io module is very similar to node.js.

  6. So, the M1 release is "more stable". That's kinda subjective... in August the word from Bob Nystrom was that Dart was bleeding edge, and "Living on the bleeding edge is scary. There may be bloodshed."

    So, does the M1 release indicate we're past that scary bleeding edge? Just how "stable" is the M1 release, and how close is M1 from being "truly" stable? Especially useful would be a list of features that are considered stable (and won't be subject to breaking changes) and which features are still under development and could be changed (or removed) at any time.

  7. Is there a port of the Octane tests to Dart? Found a triaged ticket for it but no further info...

  8. Do you have performance tests like the NodeJS project has? It would be interesting to read.

  9. Congratulations and thank you Google Dart team, will try it.

  10. This is a very good langugage...

    Thanks to the Google Dart Team..


Post a Comment

Popular posts from this blog

Const, Static, Final, Oh my!

Posted by Seth Ladd

(This is an "oldie but a goodie" post originally written by Bob Nystrom. It is being posted here as the explanations still ring true.)

Bob writes:

"static", "final", and "const" mean entirely distinct things in Dart:

"static" means a member is available on the class itself instead of on instances of the class. That's all it means, and it isn't used for anything else. static modifies *members*.

"final" means single-assignment: a final variable or field *must* have an initializer. Once assigned a value, a final variable's value cannot be changed. final modifies *variables*.

"const" has a meaning that's a bit more complex and subtle in Dart. const modifies *values*. You can use it when creating collections, like const [1, 2, 3], and when constructing objects (instead of new) like const Point(2, 3). Here, const means that the object's entire deep state can be determ…

The new AdWords UI uses Dart — we asked why

Google just announced a re-designed AdWords experience. In case you’re not familiar with AdWords: businesses use it to advertise on and partner websites. Advertising makes up majority of Google’s revenue, so when Google decides to completely redo the customer-facing front end to it, it’s a big deal. The Dart team is proud to say that this new front end is built with Dart and Angular 2. Whenever you asked us whether Google is ‘even using Dart for anything,’ this is what we had in mind but couldn’t say aloud. Until now. We asked Joshy Joseph, the primary technical lead on the project, some questions. Joshy is focusing on things like infrastructure, application latency and development velocity, so he’s the right person to ask about Dart.Q: What exactly did we launch on Monday?It’s a complete redesign of the AdWords customer experience that is rolling out slowly as a test to a small initial set of advertisers. The most noticeable thing is probably the Material Design look and f…

Dart 1.12 Released, with Null-Aware Operators and more

Dart 1.12.0 is now released! It contains the new null-aware operators language feature, and enhancements to pub, Observatory, dartdoc, and much more.

Null-aware operators

The new null-aware operators help you reduce the amount of code required to work with references that are potentially null. This feature is a collection of syntactic sugar for traversing (potentially null) object calls, conditionally setting a variable, and evaluating two (potentially null) expressions.

Click or tap the red Run button below to see them in action.


  if null operator. `expr1 ?? expr2` evaluates to `expr1` if not `null`, otherwise `expr2`.


  null-aware assignment. `v ??= expr` causes `v` to be assigned `expr` only if `v` is `null`.


  null-aware access. `x?.p` evaluates to `x.p` if `x` is not `null`, otherwise evaluates to `null`.


  null-aware method invocation. `x?.m()` invokes `m` only if `x` is not `null`.

Learn more about Dart's null-aware operators in our Language Tour.

.packages fi…