Type Alias StartStopNotifier<T>

StartStopNotifier: (
set: (value: T) => void,
update: (fn: Updater<T>) => void,
) => void | (() => void)

Start and stop notification callbacks. This function is called when the first subscriber subscribes.

Type Parameters

T

Type Declaration

- (set: (value: T) => void, update: (fn: Updater<T>) => void): void | (() => void)
- Parameters
  - set: (value: T) => void
    Function that sets the value of the store.
  - update: (fn: Updater<T>) => void
    Function that sets the value of the store after passing the current value to the update function.
  Returns void | (() => void)
  Optionally, a cleanup function that is called when the last remaining subscriber unsubscribes.