Revert "Re-land "Add a generic return type for js_util functions""

This reverts commit 66cbeb67188c69c340bcafd5f454608f693fea96.

Reason for revert: Causes dart analyzer and dart linter to find
issues within google3 and flutter, causing breakages and blocking
the roll.

Original change's description:
> Re-land "Add a generic return type for js_util functions"
> This relands commit 46486cf260a7aee968514fa2eac44c361cfbf8ac.
> The differences from the original commit:
>   - jsify is no longer being made generic
>   - Updated the CHANGELOG
> Change-Id: Ibc3402833cce2babbec9a57ad73963d7b9442ed8
> Reviewed-on:
> Commit-Queue: Riley Porter <>
> Reviewed-by: Sigmund Cherem <>,,

Change-Id: Ic2ff63bc9658ccafcab3db75bdd06814d2f17b76
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-by: Siva Annamalai <>
Commit-Queue: Siva Annamalai <>
3 files changed
tree: c5afd2f3e7add5916861e0a2256428a3d938e9ad
  1. .dart_tool/
  2. .github/
  3. benchmarks/
  4. build/
  5. client/
  6. docs/
  7. pkg/
  8. runtime/
  9. samples/
  10. samples-dev/
  11. samples_2/
  12. sdk/
  13. tests/
  14. third_party/
  15. tools/
  16. utils/
  17. .clang-format
  18. .gitattributes
  19. .gitconfig
  20. .gitignore
  21. .gn
  22. .mailmap
  23. .packages
  24. .style.yapf
  25. .vpython
  29. codereview.settings
  31. DEPS
  35. README.dart-sdk
  37. sdk_args.gni


A client-optimized language for fast apps on any platform

Dart is:

  • Optimized for UI: Develop with a programming language specialized around the needs of user interface creation.

  • Productive: Make changes iteratively: use hot reload to see the result instantly in your running app.

  • Fast on all platforms: Compile to ARM & x64 machine code for mobile, desktop, and backend. Or compile to JavaScript for the web.

Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:

  • Dart Native: For programs targeting devices (mobile, desktop, server, and more), Dart Native includes both a Dart VM with JIT (just-in-time) compilation and an AOT (ahead-of-time) compiler for producing machine code.

  • Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).

Dart platforms illustration

License & patents

Dart is free and open source.


Using Dart

Visit to learn more about the language, tools, and to find codelabs.

Browse for more packages and libraries contributed by the community and the Dart team.

Our API reference documentation is published at, based on the stable release. (We also publish docs from our beta and dev channels, as well as from the primary development branch).

Building Dart

If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.

There are more documents on our wiki.

Contributing to Dart

The easiest way to contribute to Dart is to file issues.

You can also contribute patches, as described in Contributing.