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Function: useCreateSignal()

useCreateSignal<T>(initialValue): [SignalGetter<T>, SignalSetter<T>]

Defined in: src/core/services/reactive.service.ts:55

Creates a reactive signal with a getter and setter.

The getter is callable and also exposes a useSubscribe method for listening to value changes. The setter accepts either a direct value or an updater function.

Type Parameters​

T​

T

The signal value type.

Parameters​

initialValue​

T

The initial value of the signal.

Returns​

[SignalGetter<T>, SignalSetter<T>]

A tuple of [getter, setter].

Example​

const [count, setCount] = useCreateSignal(0);
count(); // 0
setCount(1);
count(); // 1
setCount(prev => prev + 1);
count(); // 2

const unsub = count.useSubscribe((newVal, oldVal) => {
  console.log(`${oldVal} -> ${newVal}`);
});