Skip to main content

Dart Team's Weekly Digest

Posted by Anders Sandholm

Another action-packed week of events in Dart-land is passing by:
  • On the language front, we announced lazy initialization of statics. Moreover, initializing formals will use the declared type of the field by default.
  • In the VM, we removed the dependency on the OpenSSL library for big integer implementation, reduced memory overhead of loaded scripts by about 35% and landed some stability work and bug fixing.
  • In the editor, we transitioned from dartc libraries to libraries in dart-sdk/lib and worked on the new Files view and in Dartium, we did an initial pass over step into, step over and step out in the debugger.
  • New wrapperless html bindings checked in. Next step is activating these, which will cause the changes outline here. Isolates refactored, move into dart/lib/isolate in change 4647.
  • For dart:io, we added an http library making it easy to write web servers and clients. We also changed everything in dart:io (which was a lot of fun!):
    • Event names went from eventHandler to onEvent and
    • Single-shot methods now take their callback directly in the call. This has the advantage that it is clear in the API that there will be a callback and it makes it harder to use the API incorrectly. 
  • Puzzlers Chapter 2 was published, learn how Dart does with Strings, characters, and textual data and Hangout with Josh Bloch published, chatting about the Dart libraries.

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 …