For errors caused by the execute function, an ErrorEvent will be emitted to the subscriber.
Errors of the source observable will be passed through.
Type Parameters
T
R = void
Parameters
executeFun: ((t) => R | Promise<R>)
Function to execute with latest value from source observable.
Can return something synchronously or asynchronously. Returned value will be included in FinishedEvent.
Calls the given execute function with the latest value from the source observable as soon as a running call of executeFun finished.
Example:
source emitted 1 -> emit StartedEvent 1 to subscriber, call executeFun with 1
executeFun finished 1 -> emit FinishedEvent 1 to subscriber
source emitted 2 -> emit StartedEvent 2 to subscriber, call executeFun with 2
source emitted 3 -> cache 3 because executeFun didn't finished for 2 yet
executeFun finished 2 -> emit FinishedEvent 2 to subscriber, emit StartedEvent 3 to subscriber, call executeFun with 3
source emitted 4 -> cache 4 because executeFun didn't finished for 3 yet
source emitted 5 -> emit SkippedEvent for 4 and cache 5 because executeFun didn't finished for 3 yet
executeFun finished 3 -> emit FinishedEvent 3 to subscriber, emit StartedEvent 5 to subscriber, call executeFun with 5
source completed -> executeFun didn't finished for 5 yet, delay completion
executeFun finished 5 -> emit FinishedEvent 6 to subscriber, complete subscriber
Error Handling:
For errors caused by the execute function, an ErrorEvent will be emitted to the subscriber.
Errors of the source observable will be passed through.