Operator: Last #470
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Operator: Last #470
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Equivalent to lastAsync in Rx.Net.
It now throws an IllegalArgumentException instead of returning null if no elements are emitted. This is based on feedback from @headinthebox confirming this expected behavior: var xs = Observable.Range(1,0); // empty sequence int x = xs.Last().Dump(); // throws “sequence contains no elements” RxJava => BlockingObservable.last() IObservable<int> ys = xs.TakeLast(1).Dump(); // OnCompleted() RxJava => Observable.takeLast(1) IObservable<int> zs = xs.LastAsync().Dump(); // OnError(“sequence contains no elements”) RxJava => Observable.last()
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RxJava-pull-requests #395 FAILURE |
rickbw
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Jan 9, 2014
Operator: Last
jihoonson
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Mar 6, 2020
… instead of string for aggregating data of multiple instances,CircuitBreaker's | Retry's | BulkHead's or application's. (ReactiveX#471)
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Adds
Observable.lastand fixes behavior ofBlockingObservable.lastbased on email discussion with @headinthebox