Creates a Signal: it's like a subject, but with the consumer and the producer split.

export function createSignal<A extends unknown[], T>(
mapper?: (...args: A) => T,
): [Observable<T>, (...args: A) => void]


  • mapper?: (Optional) A function for mapping the arguments of the emitter function into the value of the Observable.

    Defaults to (v: Payload) => v


[1, 2]:

  1. The observable for the signal

  2. The emitter function

See also