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).

The new Google AdSense user interface: built with AngularDart

AdSense is a free, simple way to earn money by placing ads on your website. The team just launched a completely new version of their app for publishers. Read all about it here. We asked Daniel White, the tech lead for the project, some questions because the new UI happens to be built with Dart and Angular2.


AdSense launched way back in 2003. How long is it since the last big redesign?
Last big redesign was called ‘AdSense 3’ and launched about 6 years ago. It was written in Google Web Toolkit (GWT) and the UI has evolved through several iterations - but this is the first ground-up redesign in 6 years. There are a number of long-standing UX issues that we’ve taken the opportunity to solve. A big shout-out to our UX team who’ve been 100% behind this project. We couldn’t have done it without them!

How many software engineers worked on the project?
Purely on the AdSense applications, we have a team of close to 100. Around 25% of them write Dart.

How many lines of code?
We have around 160K LO…

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 …