ActionExt0#

Extension: ActionExt0#

extension ActionExt0 on R Function()

Extension on a 0-argument function to wrap it in a type-safe action.

Enables calling .action directly on any 0-argument function to wrap it.

Example Usage#

import 'package:preact_signals/preact_signals.dart';

final count = signal(0);
final clicks = signal(0);

void incrementCount() {
  count.value++;
  clicks.value++;
}

// Create a batched, untracked action from the function
final increment = incrementCount.action;

void main() {
  effect(() => print('Count: ${count.value}, Clicks: ${clicks.value}'));
  // Prints: "Count: 0, Clicks: 0"

  increment();
  // Updates both count and clicks inside a batch.
  // Triggers the effect exactly once.
  // Prints: "Count: 1, Clicks: 1"
}

Members of ActionExt0#

References#

The ActionExt0 type is referenced and used in the following pages:

• Action (signals_flutter/core)
• Action (signals_core/core)
• Action (signals/core)
• Action (preact_signals/core)