Skip to main content

New Dart Editor Build 0.2.7.1_r15699


Dart Editor has a new build that supports theming, better error reporting, disabled support for the old getter definition syntax, numerous changes to the dart:html library and more.


Devon Carew fills us in on the details on this new build:
A new Dart Editor build is available at www.dartlang.org/editor. Changes include:

  • Added support for theming the Editor - check out the 'Visual Themes' page in the preferences dialog.
  • The extract local Variable refactoring can now extract part of a string literal.
  • Several build.dart improvements, including better error reporting.
  • There's now an option to not warn when a class with noSuchMethod() has unimplemented members.
  • Added an analyzer command line option: --type-checks-for-inferred-types. This lets command line users get the same warnings they would get with the editor.
  • Analysis changes to support the upcoming iterator changes.
  • Html editor tweaks and improvements.

Breaking changes:

We disabled support for the old getter definition syntax. The empty formal parameter list in the getter definition will be a compile error. To convert your sources from old to new syntax, simply remove the empty parameter list after the getter name. For example:

old: int get Length() => a.length;
new: int get Length => a.length;

dart:html changes:
  • Members have been ‘dartified’- they now follow the Dart naming guidelines (caveat that innerHTML has been special-cased to ease the transition to innerHtml)
    • old: Element.innerHTML
    • new: Element.innerHtml
  • Element.addText and Element.addHtml have been renamed to Element.appendText and Element.appendHtml.
  • There is now Element.append(element) as an abbreviation to Element.children.add(element).
  • pkg/htmlescape has been deleted.
                      And as always, view the changelog for the full list of changes, and to get started with the Editor see our tutorial.
                      As always, we invite you to join our Dart mailing list, ask questions on Stack Overflow, or file feature requests on dartbug.com.

                      Popular posts from this blog

                      Dart in 2016: The fastest growing programming language at Google, 2nd fastest growing in TIOBE Index

                      Dart was the fastest growing programming language at Google in 2016 with millions of lines of code written. It also made it to TIOBE Index Top 20 this month (see TIOBE's methodology).

                      It takes time to build something as ambitious as Dart and, in some ways, Dart is still in its infancy. But we're glad the hard work is starting to pay off.

                      Many thanks to our amazing community!

                      We're going to celebrate by ... releasing 1.22 next week (as per our usual 6 week release schedule).

                      A stronger Dart for everyone

                      We are constantly asking ourselves:
                      How do we make developers even more productive when writing Dart apps? We believe that a critical part of the answer to this question is to make strongmode – a sound static type system for Dart – the standard for all Dart developers.

                      Teams that use Dart to build apps like Soundtrap, AdWords, AdSense, and Greentea say they really enjoy using strong mode features, such as early error detection. In fact, teams that have switched completely to strong mode cite not only early error detection but also better code readability and maintainability as major benefits. We hear this both from small teams and – even more so – from large teams with hundreds of developers writing and maintaining millions of lines of Dart code. As Björn Sperber from Soundtrap says,
                      Strong mode and the smooth integration with IntelliJ is a joy to use and a huge improvement. If you’ve tried out Flutter, you’ve already used strong mode checks from the Dart analyzer.

                      Given the benefits …

                      AngularDart 3.0: Easy upgrade, better performance

                      AngularDart 3.0 is now available. It brings better performance and smaller generated code, while also making you more productive.


                      Version 3.0 is an evolution: although it has some breaking changes (detailed below), it is a smooth upgrade due to minimal public API adjustments. Most of the progress is under the hood—in code quality, stability, generated code size, performance, and developer experience.

                      Code quality:
                      2731 instances of making the framework code more type safe (using sound Dart).The AngularDart framework code size is down by 12%.Many additional style updates to the codebase:Changed to use idiomatic <T> for generic methods.Removed NgZoneImpl, all the code exists in NgZone now.Stability:
                      Many CSS encapsulation fixes due to update with csslib package.Fixed bugs with IE11.

                      Performance:
                      For the Mail sample app, we see 30% faster time-to-interactive (currently 3812 ms on a simulated 3G connection, measured via Lighthouse).Our large app benchmark shows 2x faster render times of…