Skip to main content

Important New Dart Editor Build with Support for New Dart Libraries


Dart Editor has a very significant new build that integrates support for many of the new v2 libraries. Eric Clayberg fills us in on the details and warns that this build is likely to break existing code:
A new Dart Editor build is available at www.dartlang.org/editorChanges include:
  • Mixin support in code completion and refactoring.
  • Revised navigation menu items on editor context menu.
    • Items only appear when applicable
    • New “Find all” item to search for all declarations of a method
  • In the command-line debugger, selecting a running isolate will display all the libraries for that isolate, and all the top-level variables for those libraries. 
  • For both debuggers, break-on-exceptions is now enabled by default (Issue 4765).
  • Added a new wizard for creating Chrome apps.
    Thanks to Adam Singer for the template for this wizard!
  • Added a new wizard for creating a web-ui application.
    Thanks to Chris Buckett for the CL to make this happen!
  • Editor samples and wizards updated to use the new location of dart.js (the browser pub package).
  • Fixed deletion of folders/files on Windows so that just the links are deleted and not the actual files on disk (Issue 5583).
  • Bug fixes and cleanup to the plugins distributions, especially related to launching applications.
  • Various analysis, editor, theming and refactoring fixes
Breaking Change List:
Andas always,view the changelog for the full list of changes, and to get started with the Editor see our tutorial.

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 Рeven more so Рfrom 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…