Returns the last element of an observable sequence that satisfies the condition in the predicate if specified, else the last element.
Function): A predicate function to evaluate for elements in the source sequence. The callback is called with the following information:
- the value of the element
- the index of the element
- the Observable object being subscribed
Any): Object to use as
thiswhen executing the predicate.
Observable): Sequence containing the last element in the observable sequence that satisfies the condition in the predicate.