IterableSignalMixin#

Class: IterableSignalMixin#

A mixin that adds reactive Iterable methods and properties to a Signal holding an Iterable value.

This mixin delegates all standard Iterable operations (such as length, first, last, map, where, and any) directly to the underlying collection, while ensuring that any read operations register a reactive dependency on the signal.

import 'package:signals/signals.dart';

class MyIterableSignal extends Signal<Iterable<int>>
    with IterableSignalMixin<int, Iterable<int>> {
  MyIterableSignal(super.internalValue);
}

void main() {
  final numbers = MyIterableSignal([1, 2, 3]);

  // Set up a reactive effect that prints the list size and first element
  effect(() {
    print('Size: ${numbers.length}, First: ${numbers.first}');
  }); // Prints: "Size: 3, First: 1"

  // Update the signal value (triggers the effect)
  numbers.value = [10, 20, 30, 40]; // Prints: "Size: 4, First: 10"
}