Exceptions / Errors
- An error thrown when due time elapses.
- An error thrown when an Observable was queried with too few elements.
- An error throw when an Observable was queried with too many elements.
- An error throws when an operation receives an unknown Event type.
- An error thrown when an operation has been performed on an unsubscribed subscription.
An error thrown when one or more errors have occurred during the
unsubscribeof a Subscription.