Google has released Dart SDK 1.0.
Dart is a “a cross-browser, open source toolkit for structured web applications.” It was first announced back in 2011. Dart SDK 1.0 is the first stable, production release.
The SDK includes a cross-platform Dart Editor, which ships with developer-friendly features like “code completion, refactoring, jump to definition, a debugger, hints and warnings,..”
From the release announcement:
For deployment, dart2js is a translator that allows your Dart code to run in modern browsers. The performance of generated JavaScript has improved dramatically since our initial release and is in many cases getting close to that of idiomatic JavaScript. In fact, the dart2js output of the DeltaBlue benchmark now runs even faster than idiomatic JavaScript. Similarly, dart2js output code size has been reduced substantially. The generated JavaScript for the game Pop, Pop, Win! is now 40% smaller than it was a year ago. Performance of the VM continues to improve as well; it’s now between 42% to 130% faster than idiomatic JavaScript running in V8, depending on the benchmark.
The Dart SDK also features the Pub package manager, with more than 500 packages from the community. Fan favorites include AngularDart and polymer.dart, which provide higher-level frameworks for building web apps. Dart developers can continue using their favorite JavaScript libraries with Dart-JavaScript interop.
All the information you read to started working with Dart is available at dartlang.org.
