Returns {
promise: Promise<SubscriptionType>;
subscription: ((value) => void);
}
An object containing both a subscription callback
and a promise which resolves or rejects depending on the values pushed to the callback.
-
promise: Promise<SubscriptionType>
-
subscription: ((value) => void)
-
- (value): void
-
Returns void
Helps to build a promise associated to a subscription callback through which updates can be pushed to the promise. This promise is resolved with the value of the latest update when a resolution criterion is met. It is rejected with a custom error/reason if a rejection criterion is met or on timeout (optional). Rejection takes precedent.