Google Git
Sign in
dart/observable/8c49e71daa4c4d41e9103c4c562a8f3e9cecdd61
commit
8c49e71daa4c4d41e9103c4c562a8f3e9cecdd61
[log]
author
Mark Egli <markegli@google.com>
Thu May 27 12:31:53 2021 -0700
committer
GitHub <noreply@github.com>
Thu May 27 12:31:53 2021 -0700
tree
36bbfb8337ddb92afb00eb876c63eb8ee5b1965a
parent
def678f9aea2e1a36f4719260bf41f87864d860c [diff]
Merge in null safety changes with additional fixes. (#106)

Incorporates Dart null safety and other internal changes. Fixes MapChangeRecord type parameters, ObservableList.insertAll implementation, and tests.
19 files changed
tree: 36bbfb8337ddb92afb00eb876c63eb8ee5b1965a
  1. .github/
  2. lib/
  3. test/
  4. .gitignore
  5. analysis_options.yaml
  6. AUTHORS
  7. CHANGELOG.md
  8. CONTRIBUTING.md
  9. dart_test.yaml
  10. LICENSE
  11. pubspec.yaml
  12. README.md
README.md

Build Status

Support for detecting and being notified when an object is mutated.

An observable is a way to be notified of a continuous stream of events over time.

Some suggested uses for this library:

  • Observe objects for changes, and log when a change occurs
  • Optimize for observable collections in your own APIs and libraries instead of diffing
  • Implement simple data-binding by listening to streams

You may want to look at the former TC39 proposal Observe.observe, which was deprecated.

Usage

There are two general ways to detect changes:

  • Listen to Observable.changes and be notified when an object changes
  • Use Differ.diff to determine changes between two objects