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dart / observable / refs/heads/google
commit25f1de0f0bd7b132bac1df90f03da750c8d4154a[log] [tgz]
authorMark Egli <markegli@google.com>Tue Nov 30 13:38:38 2021 -0800
committerMark Egli <markegli@google.com>Tue Nov 30 15:56:00 2021 -0600
tree0fb397f47a51d135600485265309f8ba3df33ff3
parent78867c84013a3b500825b9bb1287f8df959fc3be [diff]
Internal change

PiperOrigin-RevId: 413233451
1 file changed
tree: 0fb397f47a51d135600485265309f8ba3df33ff3
  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