Alien Signals for Dart

The lightest signal library for Dart, ported from stackblitz/alien-signals.

Tip

alien_signals is the fastest signal library currently, as shown by experimental results from 👉 dart-reactivity-benchmark.

Installation

To install Alien Signals, add the following to your pubspec.yaml:

dependencies:
  alien_signals: latest

Alternatively, you can run the following command:

dart pub add alien_signals

Adoption

• flutter_alien_signals - Flutter binding of alien_signals preset
• solidart - [WIP] Signals in Dart and Flutter, inspired by SolidJS

Basic Usage

import 'package:alien_signals/preset.dart';

void main() {
  // Create a signal
  final count = signal(0);

  // Create a computed value
  final doubled = computed((_) => count() * 2);

  // Create an effect
  effect(() {
    print('Count: ${count()}, Doubled: ${doubled()}');
  });

  // Update the signal
  count(1); // Prints: Count: 1, Doubled: 2
}

Creating Your Own Public API

You can reuse alien_signals core algorithm via ReactiveSystem to build your own signal API. For implementation examples, see:

• alien_signals preset

API Reference

See the API documentation for detailed information about all available APIs.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Credits

This is a Dart port of the excellent stackblitz/alien-signals library.