Dart News & Updates

We are always working on providing new APIs for Dart. If you have been using Google services from Dart, we are happy to say that the Dart Team is now supporting a client library for accessing a set of APIs to Google services. Most Google services have an API described by the Google Discovery Service. This includes both Apps APIs (such as Gmail and Drive) and Cloud APIs (such as Cloud Datastore and Cloud Storage). Based on previous work by GDEs Adam Singer and Gerwin Sturm , the Dart Team has built an API generator to create Dart client libraries enabling access to Google services. We recently published the following two packages on pub.dartlang.org:   googleapis   googleapis_beta The googleapis package contains all the APIs that are available in a stable version. The googleapis_beta package contains the APIs that are currently in beta and possible only available through a Limited Preview program. We will be updating these packages on a monthly basis to ensure that...

Developers increasingly want to use the same language and business logic on the client and the server to reduce risk and complexity. To help developers easily build and deploy end-to-end Dart apps, we are happy to announce ready-to-use Docker images for Dart. This expands our Docker usage further beyond the recently announced Docker support in Google App Engine. There are now three Dart-related images on hub.docker.com for you to use: dart , dart-runtime and dart-hello , which uses the same naming scheme as the corresponding Node, Python and Go images already offered. The image google/dart adds the Dart SDK to google/debian Debian wheezy image. Running Dart in a container is now as simple as this:   $ docker run -i -t google/dart /usr/bin/dart --version The image google/dart-runtime inherits from google/dart, and provides a convenient way to run a Dart server application using a one line Dockerfile. To inherit from google/dart-runtime, your server application requires...

Dart makes creating complex applications easy, but large code size can negatively affect startup time. Dart 1.6 added support for deferred loading, which allows developers to load libraries only when needed, allowing for quicker load times and a better user experience. The Dart site has an article describing how to use deferred loading in your application. Dart 1.6 also contains a number improvements which improve the security of server applications. The Uri class is now more strict about malformed data and HttpServer now defaults to sending best-practices headers to help protect your application and your users. For summary these and others changes see the release notes . You can download Dart 1.6 from the Download Dart page . If you are running the Dart Editor, you can update by checking "About Dart Editor". Check out the Dart support page for information on getting help, filing issues, contributing to the project.

At its 107th General Assembly last week, Ecma approved the first edition of the Dart language specification . Dart is now an official Ecma standard and the specification is made available as Ecma-408 standard . We are very happy with the TC52 contributions from the community and the exciting language work on Enums, Deferred Loading and Async lying ahead. We encourage everyone interested in the evolution of Dart to join Ecma and contribute to the TC52 work. The next meeting will be held on September 16, 2014 in Zürich, Switzerland.

It’s important for web experiences to work great on mobile devices. The latest release of the Dart includes a development version of Dartium – Chrome with the Dart Runtime – which runs on Android devices. We’ve also updated the Dart Editor to support debugging mobile web apps written in Dart. You can set breakpoints and debug exceptions with Dart web apps running on a device with the same development flow that exists on your development machine. Check out the documentation to get started. The Dart 1.5 release cycle was short – just four weeks – but we are excited to continue delivering great improvements to our platform and tools. You can see a summary of the updates in the release notes . We have also released an update to the Dart Polymer package and shipped two sets of new Polymer elements. core_elements gives Dart developers access to all Polymers infrastructure components. paper_elements contains Polymer elements that follow the material design pattern that was ...

Google I/O 2014 is right around the corner. This year, we’re thrilled to have more presentations about using Dart than ever before at I/O. If you’re keen to learn more about what the Dart team and Dart users have in store for you, be sure to either check out the online schedule or install the I/O app . Pick the topic “Dart” and you’ll be taken straight to the many Dart-related events at I/O. If you’re attending I/O this year, please drop by and say "Hi" at the Dart booth. Many Dart engineers will be at I/O, answering questions and helping you with your apps. For those of you not able to join us in San Francisco, be sure to tune into the live stream , join a local I/O extended near you, or watch the sessions on the Google Developers YouTube channel . If you can't wait, be sure to subscribe to the Google Developers YouTube channel already now for additional Dart videos produced just for I/O, including previews of some new highly requested features.

It’s much easier to improve something if you can measure it. With Dart SDK 1.4, we are announcing Observatory: a comprehensive set of tools for understanding, measuring, and improving your Dart code. As the documentation explains : Observatory allows you to peek inside a running Dart virtual machine (VM) on demand and provides live, immediate reporting of data. You can use it to browse most aspects of an application. The Observatory provides information on garbage collection, the instance count for all in-memory objects by their type, line-by-line code coverage, and even evaluation of arbitrary expressions. It will continue to evolve and improve in future releases. Take a look at the do cumentation and let us know if you have issues or suggestions. Dart 1.4 also includes a number of other fixes, additions and improvements, including: The dartanalyzer command line tool is now 100% Dart and runs without Java. Using dartanalyzer directly or via other tools requires onl...