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dart / sdk / 16289b490d2064b196ae0e0dc3a0a63592ac43c5
commit16289b490d2064b196ae0e0dc3a0a63592ac43c5[log] [tgz]
authorJens Johansen <jensj@google.com>Mon Jan 24 14:40:26 2022 +0000
committerCommit Bot <commit-bot@chromium.org>Mon Jan 24 14:40:26 2022 +0000
tree46ae8e6fcd44f12ea7e2374231b0ecc45da452dc
parent441dca77fd9d2dfde2fb28862a8c0c99720eb8a1 [diff]
[CFE] Benchmarks for list copy, mapping etc.

On my computer:

1) If creating a Set from a list mapping simply adding
   each entry to the set seems faster.
2) When mapping a list to a new list using `List.generate`
  seems to be the fastest. Prefer `growable: false` if not
  needing it to be growable.
3) When creating a new list `.of` seems faster than `.from`.

Change-Id: I7f3d66100246e170cf09431dddf64b3ec39579f5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/228643
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
3 files changed
tree: 46ae8e6fcd44f12ea7e2374231b0ecc45da452dc
  1. .dart_tool/
  2. .github/
  3. benchmarks/
  4. build/
  5. docs/
  6. pkg/
  7. runtime/
  8. samples/
  9. samples-dev/
  10. samples_2/
  11. sdk/
  12. tests/
  13. third_party/
  14. tools/
  15. utils/
  16. .clang-format
  17. .gitattributes
  18. .gitconfig
  19. .gitignore
  20. .gn
  21. .mailmap
  22. .packages
  23. .style.yapf
  24. .vpython
  25. AUTHORS
  26. BUILD.gn
  27. CHANGELOG.md
  28. codereview.settings
  29. CONTRIBUTING.md
  30. DEPS
  31. LICENSE
  32. PATENT_GRANT
  33. PRESUBMIT.py
  34. README.dart-sdk
  35. README.md
  36. sdk_args.gni
  37. SECURITY.md
  38. WATCHLISTS
README.md

Dart

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.

See LICENSE and PATENT_GRANT.

Using Dart

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

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

Our API reference documentation is published at api.dart.dev, 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.