Skip to main content

Evolving the Dart language with Dart Enhancement Proposals

In July 2014, Ecma published the first version of the Dart language specification. Ecma TC52 continues to release updated versions with new features (for example, async/await). Our developers have asked for more insight into the discussion process, and for a formal way to seed the spec process with proposals. Today, we're happy to announce Dart Enhancement Proposals as the primary way for the Dart team and the larger Dart community to work together to evolve the Dart language and libraries.

To make a great language that can be used to write great programs means we need to work together. The DEP process is how we do that. We want to:
  • Create an open, collaborative, and inclusive Dart ecosystem.
  • Be responsive to developer needs.
  • Give the community a sense of shared ownership and stewardship.
  • Be transparent about the work leading to Dart language changes.
  • Ensure rationale for changes (or decisions not to change) is clearly communicated.
  • Close the loop and check if stakeholders are happy before a change is finalized.
Anyone can create and champion a DEP, but this does not mean that Dart is a democracy. The DEP process is a key part of how we decide how Dart should evolve, but it's only one part. DEPs are managed by the DEP committee. The committee meets on a regular basis to review the proposals. Because Dart is an open Ecma specification, TC52 has final say on what changes land in the spec.

We're just getting started with the DEP process. To learn more, check out the GitHub repo for more details, review some of the initial proposals, and review the notes from the first DEP meetings. You can also join our DEP discussion mailing list.

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…