The new future of dotnet/reactive and UniRx, which support many platforms including Unity, Godot, Avalonia, WPF, etc(planning MAUI, Stride, LogicLooper).
Note
This project is currently in preview. We are seeking a lot of feedback. We are considering fundamental changes such as changing the name of the library (Uni(fied)Rx) or reverting back to the use of IObservable<T> and others, if you have any opinions, request missing feature, please post them in the Issues.
I have over 10 years of experience with Rx, experience in implementing a custom Rx runtime (UniRx) for game engine, and experience in implementing an asynchronous runtime (UniTask) for game engine. Based on those experiences, I came to believe that there is a need to implement a new Reactive Extensions for .NET, one that reflects modern C# and returns to the core values of Rx.
- Stopping the pipeline at OnError is a billion-dollar mistake.
- IScheduler is the root of poor performance.
- Frame-based operations, a missing feature in Rx, are especially important in game engines.
- Single asynchronous operations should be entirely left to async/await.
- Synchronous APIs should not be implemented.
- The Necessity of a subscription list to prevent subscription leaks (similar to a Parallel Debugger)
- Backpressure should be left to IAsyncEnumerable and Channels.
- For distributed processing and queries, there are GraphQL, Kubernetes, Orleans, Akka.NET, gRPC, MagicOnion.
In other words, LINQ is not for EveryThing, and we believe that the essence of Rx lies in the processing of in-memory messaging (LINQ to Events), which will be our focus. We are not concerned with communication processes like Reactive Streams.
To address the shortcomings of dotnet/reactive, we have made changes to the core interfaces. In recent years, Rx-like frameworks optimized for language features, such as Kotlin Flow and Swift Combine, have been standardized. C# has also evolved significantly, now at C# 12, and we believe there is a need for an Rx that aligns with the latest C#.
Improving performance was also a theme in the reimplementation. For example, this is the result of the terrible performance of IScheudler and the performance difference caused by its removal.
Observable.Range(1, 10000).Subscribe()
You can also see interesting results in allocations with the addition and deletion to Subject.
x10000 subject.Subscribe() -> x10000 subscription.Dispose()
This is because dotnet/reactive has adopted ImmutableArray (or its equivalent) for Subject, which results in the allocation of a new array every time one is added or removed. Depending on the design of the application, a large number of subscriptions can occur (we have seen this especially in the complexity of games), which can be a critical issue. In R3, we have devised a way to achieve high performance while avoiding ImmutableArray.
This library is distributed via NuGet, supporting .NET Standard 2.0, .NET Standard 2.1, .NET 6(.NET 7) and .NET 8 or above.
PM> Install-Package R3
Some platforms(WPF, Avalonia, Unity, Godot) requires additional step to install. Please see Platform Supports section in below.
R3 code is almostly same as standard Rx. Make the Observable via factory methods(Timer, Interval, FromEvent, Subject, etc...) and chain operator via LINQ methods. Therefore, your knowledge about Rx and documentation on Rx can be almost directly applied. If you are new to Rx, the ReactiveX website and Introduction to Rx.NET would be useful resources for reference.
using R3;
var subscription = Observable.Interval(TimeSpan.FromSeconds(1))
.Select((_, i) => i)
.Where(x => x % 2 == 0)
.Subscribe(x => Console.WriteLine($"Interval:{x}"));
var cts = new CancellationTokenSource();
_ = Task.Run(() => { Console.ReadLine(); cts.Cancel(); });
await Observable.Timer(TimeSpan.FromSeconds(1), TimeSpan.FromSeconds(3))
.TakeUntil(cts.Token)
.ForEachAsync(x => Console.WriteLine($"Timer"));
subscription.Dispose();The surface API remains the same as normal Rx, but the interfaces used internally are different and are not IObservable<T>/IObserver<T>.
IObservable<T> being the dual of IEnumerable<T> is a beautiful definition, but it was not very practical in use.
public abstract class Observable<T>
{
public IDisposable Subscribe(Observer<T> observer);
}
public abstract class Observer<T> : IDisposable
{
public void OnNext(T value);
public void OnErrorResume(Exception error);
public void OnCompleted(Result result); // Result is () | Exception
}The biggest difference is that in normal Rx, when an exception occurs in the pipeline, it flows to OnError and the subscription is unsubscribed, but in R3, it flows to OnErrorResume and the subscription is not unsubscribed.
I consider the automatic unsubscription by OnError to be a bad design for event handling. It's very difficult and risky to resolve it within an operator like Retry, and it also led to poor performance (there are many questions and complex answers about stopping and resubscribing all over the world). Also, converting OnErrorResume to OnError(OnCompleted(Result.Failure)) is easy and does not degrade performance, but the reverse is impossible. Therefore, the design was changed to not stop by default and give users the choice to stop.
Since the original Rx contract was OnError | OnCompleted, it was changed to OnCompleted(Result result) to consolidate into one method. Result is a readonly struct with two states: Failure(Exception) | Success().
The reason for changing to an abstract class instead of an interface is that Rx has implicit complex contracts that interfaces do not guarantee. By making it an abstract class, we fully controlled the behavior of Subscribe, OnNext, and Dispose. This made it possible to manage the list of all subscriptions and prevent subscription leaks.
Subscription leaks are a common problem in applications with long lifecycles, such as GUIs or games. Tracking all subscriptions makes it easy to prevent leaks.
Internally, when subscribing, an Observer is always linked to the target Observable and doubles as a Subscription. This ensures that Observers are reliably connected from top to bottom, making tracking certain and clear that they are released on OnCompleted/Dispose. In terms of performance, because the Observer itself always becomes a Subscription, there is no need for unnecessary IDisposable allocations.
In traditional Rx, IScheduler was used as an abstraction for time-based processing, but in R3, we have discontinued its use and instead opted for the TimeProvider introduced in .NET 8. For example, the operators are defined as follows:
public static Observable<Unit> Interval(TimeSpan period, TimeProvider timeProvider);
public static Observable<T> Delay<T>(this Observable<T> source, TimeSpan dueTime, TimeProvider timeProvider)
public static Observable<T> Debounce<T>(this Observable<T> source, TimeSpan timeSpan, TimeProvider timeProvider) // same as Throttle in dotnet/reactiveOriginally, IScheduler had performance issues, and the internal implementation of dotnet/reactive was peppered with code that circumvented these issues using PeriodicTimer and IStopwatch, leading to unnecessary complexity. These can be better expressed with TimeProvider (TimeProvider.CreateTimer(), TimeProvider.GetTimestamp()).
While TimeProvider is an abstraction for asynchronous operations, excluding the Fake for testing purposes, IScheduler included synchronous schedulers like ImmediateScheduler and CurrentThreadScheduler. However, these were also meaningless as applying them to time-based operators would cause blocking, and CurrentThreadScheduler had poor performance.
Observable.Range(1, 10000).Subscribe()
In R3, anything that requires synchronous execution (like Range) is treated as Immediate, and everything else is considered asynchronous and handled through TimeProvider.
As for the implementation of TimeProvider, the standard TimeProvider.System using the ThreadPool is the default. For unit testing, FakeTimeProvider (Microsoft.Extensions.TimeProvider.Testing) is available. Additionally, many TimeProvider implementations are provided for different platforms, such as DispatcherTimerProvider for WPF and UpdateTimerProvider for Unity, enhancing ease of use tailored to each platform.
In GUI applications, there's the message loop, and in game engines, there's the game loop. Platforms that operate based on loops are not uncommon. The idea of executing something after a few seconds or frames fits very well with Rx. Just as time has been abstracted through TimeProvider, we introduced a layer of abstraction for frames called FrameProvider, and added frame-based operators corresponding to all methods that accept TimeProvider.
public static Observable<Unit> IntervalFrame(int periodFrame, FrameProvider frameProvider);
public static Observable<T> DelayFrame<T>(this Observable<T> source, int frameCount, FrameProvider frameProvider)
public static Observable<T> DebounceFrame<T>(this Observable<T> source, int frameCount, FrameProvider frameProvider)The effectiveness of frame-based processing has been proven in Unity's Rx implementation, neuecc/UniRx, which is one of the reasons why UniRx has gained strong support.
There are also several operators unique to frame-based processing.
// push OnNext every frame.
Observable.EveryUpdate().Subscribe(x => Console.WriteLine(x));
// take value until next frame
_eventSoure.TakeUntil(Obserable.NextFrame()).Subscribe();
// polling value changed
Observable.EveryValueChanged(this, x => x.Width).Subscribe(x => WidthText.Text = x.ToString());
Observable.EveryValueChanged(this, x => x.Height).Subscribe(x => HeightText.Text = x.ToString());EveryValueChanged could be interesting, as it converts properties without Push-based notifications like INotifyPropertyChanged.
`
In R3, there are four types of Subjects: Subject, ReactiveProperty, ReplaySubject, and ReplayFrameSubject. ReactiveProperty corresponds to what would be a BehaviorSubject, but with the added functionality of eliminating duplicate values. Since you can choose to enable or disable duplicate elimination, it effectively becomes a superior alternative to BehaviorSubject, leading to the removal of BehaviorSubject.
ReactiveProperty has equivalents in other frameworks as well, such as Android LiveData and Kotlin StateFlow, particularly effective for data binding in UI contexts. In .NET, there is a library called runceel/ReactiveProperty, which I originally created.
Unlike dotnet/reactive's Subject, all Subjects in R3 (Subject, ReactiveProperty, ReplaySubject, ReplayFrameSubject) are designed to call OnCompleted upon disposal. This is because R3 is designed with a focus on subscription management and unsubscription. By calling OnCompleted, it ensures that all subscriptions are unsubscribed from the Subject, the upstream source of events, by default. If you wish to avoid calling OnCompleted, you can do so by calling Dispose(false).
To bundle multiple IDisposables (Subscriptions), it's good to use Disposable's methods. In R3, depending on the performance,
Disposable.Combine(IDisposable d1, ..., IDisposable d8);
Disposable.Combine(params IDisposable[]);
Disposable.CreateBuilder();
CompositeDisposable
DisposableBagfive types are available for use. In terms of performance advantages, the order is Combine(d1,...,d8) (>= CreateBuilder) > Combine(IDisposable[]) >= CreateBuilder > DisposableBag > CompositeDisposable.
When the number of subscriptions is statically determined, Combine offers the best performance. Internally, for less than 8 arguments, it uses fields, and for 9 or more arguments, it uses an array, making Combine especially efficient for 8 arguments or less.
public partial class MainWindow : Window
{
IDisposable disposable;
public MainWindow()
{
var d1 = Observable.IntervalFrame(1).Subscribe();
var d2 = Observable.IntervalFrame(1).Subscribe();
var d3 = Observable.IntervalFrame(1).Subscribe();
disposable = Disposable.Combine(d1, d2, d3);
}
protected override void OnClosed(EventArgs e)
{
disposable.Dispose();
}
}If there are many subscriptions and it's cumbersome to hold each one in a variable, CreateBuilder can be used instead. At build time, it combines according to the number of items added to it. Since the Builder itself is a struct, there are no allocations.
public partial class MainWindow : Window
{
IDisposable disposable;
public MainWindow()
{
var d = Disposable.CreateBuilder();
Observable.IntervalFrame(1).Subscribe().AddTo(ref d);
Observable.IntervalFrame(1).Subscribe().AddTo(ref d);
Observable.IntervalFrame(1).Subscribe().AddTo(ref d);
disposable = d.Build();
}
protected override void OnClosed(EventArgs e)
{
disposable.Dispose();
}
}For dynamically added items, using DisposableBag is advisable. This is an add-only struct with only Add/Clear/Dispose methods. It can be used relatively quickly and with low allocation by holding it in a class field and passing it around by reference. However, it is not thread-safe.
public partial class MainWindow : Window
{
DisposableBag disposable; // DisposableBag is struct, no need new and don't copy
public MainWindow()
{
Observable.IntervalFrame(1).Subscribe().AddTo(ref disposable);
Observable.IntervalFrame(1).Subscribe().AddTo(ref disposable);
Observable.IntervalFrame(1).Subscribe().AddTo(ref disposable);
}
void OnClick()
{
Observable.IntervalFrame(1).Subscribe().AddTo(ref disposable);
}
protected override void OnClosed(EventArgs e)
{
disposable.Dispose();
}
}CompositeDisposable is a class that also supports Remove and is thread-safe. It is the most feature-rich, but comparatively, it has the lowest performance.
public partial class MainWindow : Window
{
CompositeDisposable disposable = new CompositeDisposable();
public MainWindow()
{
Observable.IntervalFrame(1).Subscribe().AddTo(disposable);
Observable.IntervalFrame(1).Subscribe().AddTo(disposable);
Observable.IntervalFrame(1).Subscribe().AddTo(disposable);
}
void OnClick()
{
Observable.IntervalFrame(1).Subscribe().AddTo(disposable);
}
protected override void OnClosed(EventArgs e)
{
disposable.Dispose();
}
}Additionally, there are other utilities for Disposables as follows.
Disposable.Create(Action);
SingleAssignmentDisposable
SingleAssignmentDisposableCore // struct
SerialDisposable
SerialDisposableCore// struct
Managing subscriptions is one of the most crucial aspects of Rx, and inadequate management can lead to memory leaks. There are two patterns for unsubscribing in Rx. One is by disposing of the IDisposable (Subscription) returned by Subscribe. The other is by receiving OnCompleted.
In R3, to enhance subscription cancellation on both fronts, it's now possible to bundle subscriptions using a variety of Disposable classes for Subscriptions, and for OnCompleted, the upstream side of events (such as Subject or Factory) has been made capable of emitting OnCompleted. Especially, Factories that receive a TimeProvider or FrameProvider can now take a CancellationToken.
public static Observable<Unit> Interval(TimeSpan period, TimeProvider timeProvider, CancellationToken cancellationToken)
public static Observable<Unit> EveryUpdate(FrameProvider frameProvider, CancellationToken cancellationToken)When cancelled, OnCompleted is sent, and all subscriptions are unsubscribed.
R3 incorporates a system called SubscriptionTracker. When activated, it allows you to view all subscription statuses.
SubscriptionTracker.EnableTracking = true; // default is false
SubscriptionTracker.EnableStackTrace = true;
using var d = Observable.Interval(TimeSpan.FromSeconds(1))
.Where(x => true)
.Take(10000)
.Subscribe();
// check subscription
SubscriptionTracker.ForEachActiveTask(x =>
{
Console.WriteLine(x);
});
TrackingState { TrackingId = 1, FormattedType = Timer._Timer, AddTime = 2024/01/09 4:11:39, StackTrace =... }
TrackingState { TrackingId = 2, FormattedType = Where`1._Where<Unit>, AddTime = 2024/01/09 4:11:39, StackTrace =... }
TrackingState { TrackingId = 3, FormattedType = Take`1._Take<Unit>, AddTime = 2024/01/09 4:11:39, StackTrace =... }
Besides directly calling ForEachActiveTask, making it more accessible through a GUI can make it easier to check for subscription leaks. Currently, there is an integrated GUI for Unity, and there are plans to provide a screen using Blazor for other platforms.
For time-based operators that do not specify a TimeProvider or FrameProvider, the default Provider of ObservableSystem is used. This is settable, so if there is a platform-specific Provider (for example, DispatcherTimeProvider in WPF), you can swap it out to create a more user-friendly environment.
public static class ObservableSystem
{
public static TimeProvider DefaultTimeProvider { get; set; } = TimeProvider.System;
public static FrameProvider DefaultFrameProvider { get; set; } = new NotSupportedFrameProvider();
static Action<Exception> unhandledException = DefaultUnhandledExceptionHandler;
// Prevent +=, use Set and Get method.
public static void RegisterUnhandledExceptionHandler(Action<Exception> unhandledExceptionHandler)
{
unhandledException = unhandledExceptionHandler;
}
public static Action<Exception> GetUnhandledExceptionHandler()
{
return unhandledException;
}
static void DefaultUnhandledExceptionHandler(Exception exception)
{
Console.WriteLine("R3 UnhandleException: " + exception.ToString());
}
}In CUI environments, by default, the FrameProvider will throw an exception. If you want to use FrameProvider in a CUI environment, you can set either NewThreadSleepFrameProvider, which sleeps in a new thread for a specified number of seconds, or TimerFrameProvider, which executes every specified number of seconds.
When an exception passes through OnErrorResume and is not ultimately handled by Subscribe, the UnhandledExceptionHandler of ObservableSystem is called. This can be set with RegisterUnhandledExceptionHandler. By default, it writes to Console.WriteLine, but it may need to be changed to use ILogger or something else as required.
The Result received by OnCompleted has a field Exception?, where it's null in case of success and contains the Exception in case of failure.
// Typical processing code example
void OnCompleted(Result result)
{
if (result.IsFailure)
{
// do failure
_ = result.Exception;
}
else // result.IsSuccess
{
// do success
}
}To generate a Result, in addition to using Result.Success and Result.Failure(exception), Observer has OnCompleted() and OnCompleted(exception) as shortcuts for Success and Failure, respectively.
observer.OnCompleted(Result.Success);
observer.OnCompleted(Result.Failure(exception));
observer.OnCompleted(); // same as Result.Success
observer.OnCompleted(exception); // same as Result.Failure(exception)For unit testing, you can use FakeTimeProvider of Microsoft.Extensions.TimeProvider.Testing.
Additionally, in R3, there is a collection called LiveList, which allows you to obtain subscription statuses as a list. Combining these two features can be very useful for unit testing.
var fakeTime = new FakeTimeProvider();
var list = Observable.Timer(TimeSpan.FromSeconds(5), fakeTime).ToLiveList();
fakeTime.Advance(TimeSpan.FromSeconds(4));
list.AssertIsNotCompleted();
fakeTime.Advance(TimeSpan.FromSeconds(1));
list.AssertIsCompleted();
list.AssertEqual([Unit.Default]);For FrameProvider, a FakeFrameProvider is provided as standard, and it can be used in the same way as FakeTimeProvider.
var cts = new CancellationTokenSource();
var frameProvider = new FakeFrameProvider();
var list = Observable.EveryUpdate(frameProvider, cts.Token)
.Select(_ => frameProvider.GetFrameCount())
.ToLiveList();
list.AssertEqual([]); // list.Should().Equal(expected);
frameProvider.Advance();
list.AssertEqual([0]);
frameProvider.Advance(3);
list.AssertEqual([0, 1, 2, 3]);
cts.Cancel();
list.AssertIsCompleted(); // list.IsCompleted.Should().BeTrue();
frameProvider.Advance();
list.AssertEqual([0, 1, 2, 3]);
list.AssertIsCompleted();Observable<T> is not IObservable<T>. You can convert Observable<T>.AsIObserable() or IObservable<T>.AsObservable().
TODO:
TODO:
Even without adding specific platform support, it is possible to use only the core library. However, Rx becomes more user-friendly by replacing the standard TimeProvider and FrameProvider with those optimized for each platform. For example, while the standard TimeProvider is thread-based, using a UI thread-based TimeProvider for each platform can eliminate the need for dispatch through ObserveOn, enhancing usability. Additionally, since message loops differ across platforms, the use of individual FrameProvider is essential.
Although standard support is provided for the following platforms, by implementing TimeProvider and FrameProvider, it is possible to support any environment, including in-house game engine or other frameworks.
Add support planning MAUI, Stride, LogicLooper.
PM> Install-Package R3.WPF
R3.WPF package has two providers.
- WpfDispatcherTimerProvider
- WpfRenderingFrameProvider
Calling WpfProviderInitializer.SetDefaultObservableSystem() at startup will replace ObservableSystem.DefaultTimeProvider and ObservableSystem.DefaultFrameProvider with the aforementioned providers.
public partial class App : Application
{
protected override void OnStartup(StartupEventArgs e)
{
// You need to set UnhandledExceptionHandler
WpfProviderInitializer.SetDefaultObservableSystem(ex => Trace.WriteLine($"R3 UnhandledException:{ex}"));
}
}As a result, time based operations are replaced with DispatcherTimer, allowing you to reflect time based operations on the UI without having to use ObserveOn.
WpfRenderingFrameProvider is a frame-based loop system synchronized with the CompositionTarget.Rendering event. This allows for writing code that, for example, reads and reflects changes in values that do not implement INotifyPropertyChanged.
public partial class MainWindow : Window
{
IDisposable disposable;
public MainWindow()
{
InitializeComponent();
var d1 = Observable.EveryValueChanged(this, x => x.Width).Subscribe(x => WidthText.Text = x.ToString());
var d2 = Observable.EveryValueChanged(this, x => x.Height).Subscribe(x => HeightText.Text = x.ToString());
disposable = Disposable.Combine(d1, d2);
}
protected override void OnClosed(EventArgs e)
{
disposable.Dispose();
}
}
In addition to the above, the following ObserveOn/SubscribeOn methods have been added.
- ObserveOnDispatcher
- ObserveOnCurrentDispatcher
- SubscribeOnDispatcher
- SubscribeOnCurrentDispatcher
PM> Install-Package R3.Avalonia
R3.Avalonia package has two providers.
- AvaloniaDispatcherTimerProvider
- AvaloniaDispatcherFrameProvider
Calling AvaloniaProviderInitializer.SetDefaultObservableSystem() at startup will replace ObservableSystem.DefaultTimeProvider and ObservableSystem.DefaultFrameProvider with the aforementioned providers.
Additionally, calling UseR3() in ApplicationBuilder sets the default providers, making it a recommended approach.
public static AppBuilder BuildAvaloniaApp()
=> AppBuilder.Configure<App>()
.UsePlatformDetect()
.WithInterFont()
.LogToTrace()
.UseR3(); // add this lineAs a result, time based operations are replaced with DispatcherTimer, allowing you to reflect time based operations on the UI without having to use ObserveOn.
In the case of methods without arguments, integrate the following method into ObservableSystem.RegisterUnhandledExceptionHandler. Please customize this as necessary.
ex => Logger.Sink?.Log(LogEventLevel.Error, "R3", null, "R3 Unhandled Exception {0}", ex);AvaloniaDispatcherFrameProvider calculates a frame by polling with DispatcherTimer. By default, it updates at 60fps.
In addition to the above, the following ObserveOn/SubscribeOn methods have been added.
- ObserveOnDispatcher
- ObserveOnUIThreadDispatcher
- SubscribeOnDispatcher
- SubscribeOnUIThreadDispatcher
The minimum Unity support for R3 is Unity 2021.3. However, Unity 2022.2 is required to use all features.
There are two installation steps required to use it in Unity.
- Install
R3from NuGet using NuGetForUnity
-
Open Window from NuGet -> Manage NuGet Packages, Search "R3" and Press Install.
-
If you encount version conflicts error, please disable version validation in Player Settings(Edit -> Project Settings -> Player -> Scroll down and expand "Other Settings" than uncheck "Assembly Version Validation" under the "Configuration" section).
- Install the
R3.Unitypackage by referencing the git URL
https://github.com/Cysharp/R3.git?path=src/R3.Unity/Assets/R3.Unity
R3 uses the ..* release tag, so you can specify a version like #1.0.0. For example: https://github.com/Cysharp/R3.git?path=src/R3.Unity/Assets/R3.Unity#1.0.0
Unity's TimeProvider and FrameProvider is PlayerLoop based. Additionally, there are variations of TimeProvider that correspond to the TimeScale.
UnityTimeProvider.Initialization
UnityTimeProvider.EarlyUpdate
UnityTimeProvider.FixedUpdate
UnityTimeProvider.PreUpdate
UnityTimeProvider.Update
UnityTimeProvider.PreLateUpdate
UnityTimeProvider.PostLateUpdate
UnityTimeProvider.TimeUpdate
UnityTimeProvider.InitializationIgnoreTimeScale
UnityTimeProvider.EarlyUpdateIgnoreTimeScale
UnityTimeProvider.FixedUpdateIgnoreTimeScale
UnityTimeProvider.PreUpdateIgnoreTimeScale
UnityTimeProvider.UpdateIgnoreTimeScale
UnityTimeProvider.PreLateUpdateIgnoreTimeScale
UnityTimeProvider.PostLateUpdateIgnoreTimeScale
UnityTimeProvider.TimeUpdateIgnoreTimeScale
UnityTimeProvider.InitializationRealtime
UnityTimeProvider.EarlyUpdateRealtime
UnityTimeProvider.FixedUpdateRealtime
UnityTimeProvider.PreUpdateRealtime
UnityTimeProvider.UpdateRealtime
UnityTimeProvider.PreLateUpdateRealtime
UnityTimeProvider.PostLateUpdateRealtime
UnityTimeProvider.TimeUpdateRealtime
UnityFrameProvider.Initialization
UnityFrameProvider.EarlyUpdate
UnityFrameProvider.FixedUpdate
UnityFrameProvider.PreUpdate
UnityFrameProvider.Update
UnityFrameProvider.PreLateUpdate
UnityFrameProvider.PostLateUpdate
UnityFrameProvider.TimeUpdate
You can write it like this using these:
// ignore-timescale based interval
Observable.Interval(TimeSpan.FromSeconds(5), UnityTimeProvider.UpdateIgnoreTimeScale);
// fixed-update loop
Observable.EveryUpdate(UnityFrameProvider.FixedUpdate);
// observe PostLateUpdate
Observable.Return(42).ObserveOn(UnityFrameProvider.PostLateUpdate);In the case of Unity, UnityTimeProvider.Update and UnityFrameProvider.Update are automatically set at startup by default.
public static class UnityProviderInitializer
{
[RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.AfterAssembliesLoaded)]
public static void SetDefaultObservableSystem()
{
SetDefaultObservableSystem(static ex => UnityEngine.Debug.LogException(ex));
}
public static void SetDefaultObservableSystem(Action<Exception> unhandledExceptionHandler)
{
ObservableSystem.RegisterUnhandledExceptionHandler(unhandledExceptionHandler);
ObservableSystem.DefaultTimeProvider = UnityTimeProvider.Update;
ObservableSystem.DefaultFrameProvider = UnityFrameProvider.Update;
}
}A method has been added to convert from UnityEvent to AsObservable. If a CancellationToken is passed, it allows the event source to call for event unsubscription by issuing OnCompleted when Cancel is invoked. For example, if you pass MonoBehaviour.destroyCancellationToken, it will be reliably unsubscribed in conjunction with the GameObject's lifecycle.
public static Observable<Unit> AsObservable(this UnityEngine.Events.UnityEvent unityEvent, CancellationToken cancellationToken = default)
public static Observable<T> AsObservable<T>(this UnityEngine.Events.UnityEvent<T> unityEvent, CancellationToken cancellationToken = default)
public static Observable<(T0 Arg0, T1 Arg1)> AsObservable<T0, T1>(this UnityEngine.Events.UnityEvent<T0, T1> unityEvent, CancellationToken cancellationToken = default)
public static Observable<(T0 Arg0, T1 Arg1, T2 Arg2)> AsObservable<T0, T1, T2>(this UnityEngine.Events.UnityEvent<T0, T1, T2> unityEvent, CancellationToken cancellationToken = default)
public static Observable<(T0 Arg0, T1 Arg1, T2 Arg2, T3 Arg3)> AsObservable<T0, T1, T2, T3>(this UnityEngine.Events.UnityEvent<T0, T1, T2, T3> unityEvent, CancellationToken cancellationToken = default)Additionally, with extension methods for uGUI, uGUI events can be easily converted to Observables. OnValueChangedAsObservable starts the subscription by first emitting the latest value at the time of subscription. Moreover, in Unity 2022.2 or later, when the associated component is destroyed, it emits an OnCompleted event to ensure the subscription is reliably cancelled.
public static IDisposable SubscribeToText(this Observable<string> source, Text text)
public static IDisposable SubscribeToText<T>(this Observable<T> source, Text text)
public static IDisposable SubscribeToText<T>(this Observable<T> source, Text text, Func<T, string> selector)
public static IDisposable SubscribeToInteractable(this Observable<bool> source, Selectable selectable)
public static Observable<Unit> OnClickAsObservable(this Button button)
public static Observable<bool> OnValueChangedAsObservable(this Toggle toggle)
public static Observable<float> OnValueChangedAsObservable(this Scrollbar scrollbar)
public static Observable<Vector2> OnValueChangedAsObservable(this ScrollRect scrollRect)
public static Observable<float> OnValueChangedAsObservable(this Slider slider)
public static Observable<string> OnEndEditAsObservable(this InputField inputField)
public static Observable<string> OnValueChangedAsObservable(this InputField inputField)
public static Observable<int> OnValueChangedAsObservable(this Dropdown dropdown)In addition to the above, the following ObserveOn/SubscribeOn methods have been added.
- ObserveOnMainThread
- SubscribeOnMainThread
Only Unity 2022.2 or later, in MonoBehavior, you can use .AddTo(this) to manage subscription to GameObject lifecycle. This is because only in Unity 2022.2 and later versions, MonoBehavior implements destroyCancellationToken.
// simple pattern
Observable.EveryUpdate().Subscribe().AddTo(this);
Observable.EveryUpdate().Subscribe().AddTo(this);
Observable.EveryUpdate().Subscribe().AddTo(this);
// better performance(use CancellationToken.Register once)
var d = Disposable.CreateBuilder();
Observable.EveryUpdate().Subscribe().AddTo(ref d);
Observable.EveryUpdate().Subscribe().AddTo(ref d);
Observable.EveryUpdate().Subscribe().AddTo(ref d);
d.AddTo(destroyCancellationToken); // Build and RegisterYou open tracker window in Window -> Observable Tracker. It enables watch SubscriptionTracker list in editor window.
- Enable AutoReload(Toggle) - Reload automatically.
- Reload - Reload view.
- GC.Collect - Invoke GC.Collect.
- Enable Tracking(Toggle) - Start to track subscription. Performance impact: low.
- Enable StackTrace(Toggle) - Capture StackTrace when observable is subscribed. Performance impact: high.
Observable Tracker is intended for debugging use only as enabling tracking and capturing stacktraces is useful but has a heavy performance impact. Recommended usage is to enable both tracking and stacktraces to find subscription leaks and to disable them both when done.
Godot support is for Godot 4.x.
There are some installation steps required to use it in Godot.
- Install
R3from NuGet. - Download(or clone git submodule) the repository and move the
src/R3.Godot/addons/R3.Godotdirectory to your project. - Add
addons/R3.Godot/FrameProviderDispatcher.cs / FrameProviderDispatcheras an autoload
Godot support has these TimeProvider and FrameProvider.
GodotTimeProvider.Process
GodotTimeProvider.PhysicsProcess
GodotFrameProvider.Process
GodotFrameProvider.PhysicsProcess
autoloaded FrameProviderDispatcher set GodotTimeProvider.Process and GodotFrameProvider.Process as default providers. Additionally, UnhandledException is written to GD.PrintErr.
This is the minimal sample to use R3.Godot.
using Godot;
using R3;
using System;
public partial class Node2D : Godot.Node2D
{
IDisposable subscription;
public override void _Ready()
{
subscription = Observable.EveryUpdate()
.SampleFrame(10)
.Subscribe(x =>
{
GD.Print($"Observable.EveryUpdate: {GodotFrameProvider.Process.GetFrameCount()}");
});
}
protected override void Dispose(bool disposing)
{
subscription?.Dispose();
}
}The standard operators in ReactiveX follow the behavior described in the Reactive X Operator documentation.
Methods that accept a Scheduler will take a TimeProvider. Additionally, methods that receive a TimeProvider have an added method called ***Frame that accepts a FrameProvider.
For default time based operations that do not take a provider, ObservableSystem.DefaultTimeProvider is used, and for frame based operations without provider, ObservableSystem.DefaultFrameProvider is used.
Factory methods are defined as static methods in the static class Observable.
| Name(Parameter) | ReturnType |
|---|---|
Amb(params Observable<T>[] sources) |
Observable<T> |
Amb(IEnumerable<Observable<T>> sources) |
Observable<T> |
CombineLatest(params Observable<T>[] sources) |
Observable<T[]> |
CombineLatest(IEnumerable<Observable<T>> sources) |
Observable<T[]> |
Concat(params Observable<T>[] sources) |
Observable<T> |
Concat(IEnumerable<Observable<T>> sources) |
Observable<T> |
Create(Func<Observer<T>, IDisposable> subscribe) |
Observable<T> |
Create(TState state, Func<Observer<T>, TState, IDisposable> subscribe) |
Observable<T> |
Defer(Func<Observable<T>> observableFactory) |
Observable<T> |
| Empty() | Observable<T> |
Empty(TimeProvider timeProvider) |
Observable<T> |
Empty(TimeSpan dueTime, TimeProvider timeProvider) |
Observable<T> |
| EveryUpdate() | Observable<Unit> |
EveryUpdate(CancellationToken cancellationToken) |
Observable<Unit> |
EveryUpdate(FrameProvider frameProvider) |
Observable<Unit> |
EveryUpdate(FrameProvider frameProvider, CancellationToken cancellationToken) |
Observable<Unit> |
EveryValueChanged(TSource source, Func<TSource, TProperty> propertySelector, CancellationToken cancellationToken = default) |
Observable<TProperty> |
EveryValueChanged(TSource source, Func<TSource, TProperty> propertySelector, FrameProvider frameProvider, CancellationToken cancellationToken = default) |
Observable<TProperty> |
EveryValueChanged(TSource source, Func<TSource, TProperty> propertySelector, EqualityComparer<TProperty> equalityComparer, CancellationToken cancellationToken = default) |
Observable<TProperty> |
EveryValueChanged(TSource source, Func<TSource, TProperty> propertySelector, FrameProvider frameProvider, EqualityComparer<TProperty> equalityComparer, CancellationToken cancellationToken = default) |
Observable<TProperty> |
FromEvent(Action<Action> addHandler, Action<Action> removeHandler, CancellationToken cancellationToken = default) |
Observable<Unit> |
FromEvent(Action<Action<T>> addHandler, Action<Action<T>> removeHandler, CancellationToken cancellationToken = default) |
Observable<T> |
FromEvent(Func<Action, TDelegate> conversion, Action<TDelegate> addHandler, Action<TDelegate> removeHandler, CancellationToken cancellationToken = default) |
Observable<Unit> |
FromEvent(Func<Action<T>, TDelegate> conversion, Action<TDelegate> addHandler, Action<TDelegate> removeHandler, CancellationToken cancellationToken = default) |
Observable<T> |
FromEventHandler(Action<EventHandler> addHandler, Action<EventHandler> removeHandler, CancellationToken cancellationToken = default) |
Observable<ValueTuple<Object, EventArgs>> |
FromEventHandler(Action<EventHandler<TEventArgs>> addHandler, Action<EventHandler<TEventArgs>> removeHandler, CancellationToken cancellationToken = default) |
Observable<ValueTuple<Object, TEventArgs>> |
Interval(TimeSpan period, CancellationToken cancellationToken = default) |
Observable<Unit> |
Interval(TimeSpan period, TimeProvider timeProvider, CancellationToken cancellationToken = default) |
Observable<Unit> |
IntervalFrame(Int32 periodFrame, CancellationToken cancellationToken = default) |
Observable<Unit> |
IntervalFrame(Int32 periodFrame, FrameProvider frameProvider, CancellationToken cancellationToken = default) |
Observable<Unit> |
Merge(params Observable<T>[] sources) |
Observable<T> |
Merge(IEnumerable<Observable<T>> sources) |
Observable<T> |
| Never() | Observable<T> |
NextFrame(CancellationToken cancellationToken = default) |
Observable<Unit> |
NextFrame(FrameProvider frameProvider, CancellationToken cancellationToken = default) |
Observable<Unit> |
Range(Int32 start, Int32 count) |
Observable<Int32> |
Range(Int32 start, Int32 count, CancellationToken cancellationToken) |
Observable<Int32> |
Repeat(T value, Int32 count) |
Observable<T> |
Repeat(T value, Int32 count, CancellationToken cancellationToken) |
Observable<T> |
Return(T value) |
Observable<T> |
Return(T value, TimeProvider timeProvider, CancellationToken cancellationToken = default) |
Observable<T> |
Return(T value, TimeSpan dueTime, TimeProvider timeProvider, CancellationToken cancellationToken = default) |
Observable<T> |
Return(Unit value) |
Observable<Unit> |
Return(Boolean value) |
Observable<Boolean> |
Return(Int32 value) |
Observable<Int32> |
ReturnFrame(T value, CancellationToken cancellationToken = default) |
Observable<T> |
ReturnFrame(T value, FrameProvider frameProvider, CancellationToken cancellationToken = default) |
Observable<T> |
ReturnFrame(T value, Int32 dueTimeFrame, CancellationToken cancellationToken = default) |
Observable<T> |
ReturnFrame(T value, Int32 dueTimeFrame, FrameProvider frameProvider, CancellationToken cancellationToken = default) |
Observable<T> |
ReturnOnCompleted(Result result) |
Observable<T> |
ReturnOnCompleted(Result result, TimeProvider timeProvider) |
Observable<T> |
ReturnOnCompleted(Result result, TimeSpan dueTime, TimeProvider timeProvider) |
Observable<T> |
| ReturnUnit() | Observable<Unit> |
Throw(Exception exception) |
Observable<T> |
Throw(Exception exception, TimeProvider timeProvider) |
Observable<T> |
Throw(Exception exception, TimeSpan dueTime, TimeProvider timeProvider) |
Observable<T> |
Timer(TimeSpan dueTime, CancellationToken cancellationToken = default) |
Observable<Unit> |
Timer(DateTimeOffset dueTime, CancellationToken cancellationToken = default) |
Observable<Unit> |
Timer(TimeSpan dueTime, TimeSpan period, CancellationToken cancellationToken = default) |
Observable<Unit> |
Timer(DateTimeOffset dueTime, TimeSpan period, CancellationToken cancellationToken = default) |
Observable<Unit> |
Timer(TimeSpan dueTime, TimeProvider timeProvider, CancellationToken cancellationToken = default) |
Observable<Unit> |
Timer(DateTimeOffset dueTime, TimeProvider timeProvider, CancellationToken cancellationToken = default) |
Observable<Unit> |
Timer(TimeSpan dueTime, TimeSpan period, TimeProvider timeProvider, CancellationToken cancellationToken = default) |
Observable<Unit> |
Timer(DateTimeOffset dueTime, TimeSpan period, TimeProvider timeProvider, CancellationToken cancellationToken = default) |
Observable<Unit> |
TimerFrame(Int32 dueTimeFrame, CancellationToken cancellationToken = default) |
Observable<Unit> |
TimerFrame(Int32 dueTimeFrame, Int32 periodFrame, CancellationToken cancellationToken = default) |
Observable<Unit> |
TimerFrame(Int32 dueTimeFrame, FrameProvider frameProvider, CancellationToken cancellationToken = default) |
Observable<Unit> |
TimerFrame(Int32 dueTimeFrame, Int32 periodFrame, FrameProvider frameProvider, CancellationToken cancellationToken = default) |
Observable<Unit> |
ToObservable(this Task<T> task) |
Observable<T> |
ToObservable(this IEnumerable<T> source, CancellationToken cancellationToken = default) |
Observable<T> |
ToObservable(this IAsyncEnumerable<T> source) |
Observable<T> |
ToObservable(this IObservable<T> source) |
Observable<T> |
Yield(CancellationToken cancellationToken = default) |
Observable<Unit> |
Yield(TimeProvider timeProvider, CancellationToken cancellationToken = default) |
Observable<Unit> |
YieldFrame(CancellationToken cancellationToken = default) |
Observable<Unit> |
YieldFrame(FrameProvider frameProvider, CancellationToken cancellationToken = default) |
Observable<Unit> |
Zip(params Observable<T>[] sources) |
Observable<T[]> |
Zip(IEnumerable<Observable<T>> sources) |
Observable<T[]> |
ZipLatest(params Observable<T>[] sources) |
Observable<T[]> |
ZipLatest(IEnumerable<Observable<T>> sources) |
Observable<T[]> |
Methods that accept a CancellationToken will emit OnCompleted when a Cancel is issued. This allows you to unsubscribe all subscriptions from the event source.
Range, Repeat, Return/Empty/Throw (which do not take a TimeProvider) issue values immediately. This means that even if disposed of midway, the emission of values cannot be stopped. For example,
Observable.Range(0, int.MaxValue)
.Do(onNext: x => Console.WriteLine($"Do:{x}"))
.Take(10)
.Subscribe(x => Console.WriteLine($"Subscribe:{x}"));In this case, since the disposal of Take(10) is conveyed after the emission of Range, the stream does not stop. In dotnet/reactive, this could be avoided by specifying CurrentThreadScheduler, but it was not adopted in R3 due to a significant performance decrease.
If you want to avoid such cases, you can stop the Range by conveying a cancellation command through a CancellationToken.
var cts = new CancellationTokenSource();
Observable.Range(0, int.MaxValue, cts.Token)
.Do(onNext: x => Console.WriteLine($"Do:{x}"))
.Take(10)
.DoCancelOnCompleted(cts)
.Subscribe(x => Console.WriteLine($"Subscribe:{x}"));Among our custom frame-based methods, EveryUpdate emits values every frame. Yield and NextFrame are similar, but Yield emits on the first frame loop after subscribing, while NextFrame delays emission to the next frame if it's in the same frame as the FrameProvider.GetFrameCount() value obtained at the time of subscription. EveryValueChanged compares values every frame and notifies when there is a change.
Operator methods are defined as extension methods to Observable<T> in the static class ObservableExtensions.
| Name(Parameter) | ReturnType |
|---|---|
AggregateAsync(this Observable<T> source, TAccumulate seed, Func<TAccumulate, T, TAccumulate> func, Func<TAccumulate, TResult> resultSelector, CancellationToken cancellationToken = default) |
Task<TResult> |
AllAsync(this Observable<T> source, Func<T, Boolean> predicate, CancellationToken cancellationToken = default) |
Task<Boolean> |
Amb(this Observable<T> source, Observable<T> second) |
Observable<T> |
AnyAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<Boolean> |
AnyAsync(this Observable<T> source, Func<T, Boolean> predicate, CancellationToken cancellationToken = default) |
Task<Boolean> |
Append(this Observable<T> source, T value) |
Observable<T> |
AsIObservable(this Observable<T> source) |
IObservable<T> |
AsObservable(this Observable<T> source) |
Observable<T> |
AsUnitObservable(this Observable<T> source) |
Observable<Unit> |
AverageAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<Double> |
Cast(this Observable<T> source) |
Observable<TResult> |
Catch(this Observable<T> source, Observable<T> second) |
Observable<T> |
Catch(this Observable<T> source, Func<TException, Observable<T>> errorHandler) |
Observable<T> |
Chunk(this Observable<T> source, Int32 count) |
Observable<T[]> |
Chunk(this Observable<T> source, TimeSpan timeSpan) |
Observable<T[]> |
Chunk(this Observable<T> source, TimeSpan timeSpan, TimeProvider timeProvider) |
Observable<T[]> |
Chunk(this Observable<T> source, TimeSpan timeSpan, Int32 count) |
Observable<T[]> |
Chunk(this Observable<T> source, TimeSpan timeSpan, Int32 count, TimeProvider timeProvider) |
Observable<T[]> |
Chunk(this Observable<TSource> source, Observable<TWindowBoundary> windowBoundaries) |
Observable<TSource[]> |
ChunkFrame(this Observable<T> source) |
Observable<T[]> |
ChunkFrame(this Observable<T> source, Int32 frameCount) |
Observable<T[]> |
ChunkFrame(this Observable<T> source, Int32 frameCount, FrameProvider frameProvider) |
Observable<T[]> |
ChunkFrame(this Observable<T> source, Int32 frameCount, Int32 count) |
Observable<T[]> |
ChunkFrame(this Observable<T> source, Int32 frameCount, Int32 count, FrameProvider frameProvider) |
Observable<T[]> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Func<T1, T2, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Func<T1, T2, T3, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Func<T1, T2, T3, T4, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Func<T1, T2, T3, T4, T5, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Func<T1, T2, T3, T4, T5, T6, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Func<T1, T2, T3, T4, T5, T6, T7, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Func<T1, T2, T3, T4, T5, T6, T7, T8, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Observable<T12> source12, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Observable<T12> source12, Observable<T13> source13, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Observable<T12> source12, Observable<T13> source13, Observable<T14> source14, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, TResult> resultSelector) |
Observable<TResult> |
CombineLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Observable<T12> source12, Observable<T13> source13, Observable<T14> source14, Observable<T15> source15, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, TResult> resultSelector) |
Observable<TResult> |
Concat(this Observable<T> source, Observable<T> second) |
Observable<T> |
ContainsAsync(this Observable<T> source, T value, CancellationToken cancellationToken = default) |
Task<Boolean> |
ContainsAsync(this Observable<T> source, T value, IEqualityComparer<T> equalityComparer, CancellationToken cancellationToken = default) |
Task<Boolean> |
CountAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<Int32> |
Debounce(this Observable<T> source, TimeSpan timeSpan) |
Observable<T> |
Debounce(this Observable<T> source, TimeSpan timeSpan, TimeProvider timeProvider) |
Observable<T> |
DebounceFrame(this Observable<T> source, Int32 frameCount) |
Observable<T> |
DebounceFrame(this Observable<T> source, Int32 frameCount, FrameProvider frameProvider) |
Observable<T> |
DefaultIfEmpty(this Observable<T> source) |
Observable<T> |
DefaultIfEmpty(this Observable<T> source, T defaultValue) |
Observable<T> |
Delay(this Observable<T> source, TimeSpan dueTime) |
Observable<T> |
Delay(this Observable<T> source, TimeSpan dueTime, TimeProvider timeProvider) |
Observable<T> |
DelayFrame(this Observable<T> source, Int32 frameCount) |
Observable<T> |
DelayFrame(this Observable<T> source, Int32 frameCount, FrameProvider frameProvider) |
Observable<T> |
DelaySubscription(this Observable<T> source, TimeSpan dueTime) |
Observable<T> |
DelaySubscription(this Observable<T> source, TimeSpan dueTime, TimeProvider timeProvider) |
Observable<T> |
DelaySubscriptionFrame(this Observable<T> source, Int32 frameCount) |
Observable<T> |
DelaySubscriptionFrame(this Observable<T> source, Int32 frameCount, FrameProvider frameProvider) |
Observable<T> |
Dematerialize(this Observable<Notification<T>> source) |
Observable<T> |
Distinct(this Observable<T> source) |
Observable<T> |
Distinct(this Observable<T> source, IEqualityComparer<T> comparer) |
Observable<T> |
DistinctBy(this Observable<TSource> source, Func<TSource, TKey> keySelector) |
Observable<TSource> |
DistinctBy(this Observable<TSource> source, Func<TSource, TKey> keySelector, IEqualityComparer<TKey> comparer) |
Observable<TSource> |
DistinctUntilChanged(this Observable<T> source) |
Observable<T> |
DistinctUntilChanged(this Observable<T> source, IEqualityComparer<T> comparer) |
Observable<T> |
DistinctUntilChangedBy(this Observable<T> source, Func<T, TKey> keySelector) |
Observable<T> |
DistinctUntilChangedBy(this Observable<T> source, Func<T, TKey> keySelector, IEqualityComparer<TKey> comparer) |
Observable<T> |
Do(this Observable<T> source, Action<T> onNext = default, Action<Exception> onErrorResume = default, Action<Result> onCompleted = default, Action onDispose = default, Action onSubscribe = default) |
Observable<T> |
Do(this Observable<T> source, TState state, Action<T, TState> onNext = default, Action<Exception, TState> onErrorResume = default, Action<Result, TState> onCompleted = default, Action<TState> onDispose = default, Action<TState> onSubscribe = default) |
Observable<T> |
DoCancelOnCompleted(this Observable<T> source, CancellationTokenSource cancellationTokenSource) |
Observable<T> |
ElementAtAsync(this Observable<T> source, Int32 index, CancellationToken cancellationToken = default) |
Task<T> |
ElementAtAsync(this Observable<T> source, Index index, CancellationToken cancellationToken = default) |
Task<T> |
ElementAtOrDefaultAsync(this Observable<T> source, Int32 index, T defaultValue = default, CancellationToken cancellationToken = default) |
Task<T> |
ElementAtOrDefaultAsync(this Observable<T> source, Index index, T defaultValue = default, CancellationToken cancellationToken = default) |
Task<T> |
FirstAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<T> |
FirstAsync(this Observable<T> source, Func<T, Boolean> predicate, CancellationToken cancellationToken = default) |
Task<T> |
FirstOrDefaultAsync(this Observable<T> source, T defaultValue = default, CancellationToken cancellationToken = default) |
Task<T> |
FirstOrDefaultAsync(this Observable<T> source, Func<T, Boolean> predicate, T defaultValue = default, CancellationToken cancellationToken = default) |
Task<T> |
ForEachAsync(this Observable<T> source, Action<T> action, CancellationToken cancellationToken = default) |
Task |
ForEachAsync(this Observable<T> source, Action<T, Int32> action, CancellationToken cancellationToken = default) |
Task |
IgnoreElements(this Observable<T> source) |
Observable<T> |
IgnoreElements(this Observable<T> source, Action<T> doOnNext) |
Observable<T> |
IgnoreOnErrorResume(this Observable<T> source) |
Observable<T> |
IgnoreOnErrorResume(this Observable<T> source, Action<Exception> doOnErrorResume) |
Observable<T> |
IsEmptyAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<Boolean> |
LastAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<T> |
LastAsync(this Observable<T> source, Func<T, Boolean> predicate, CancellationToken cancellationToken = default) |
Task<T> |
LastOrDefaultAsync(this Observable<T> source, T defaultValue = default, CancellationToken cancellationToken = default) |
Task<T> |
LastOrDefaultAsync(this Observable<T> source, Func<T, Boolean> predicate, T defaultValue = default, CancellationToken cancellationToken = default) |
Task<T> |
LongCountAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<Int64> |
Materialize(this Observable<T> source) |
Observable<Notification<T>> |
MaxAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<T> |
MaxByAsync(this Observable<T> source, Func<T, TKey> keySelector, CancellationToken cancellationToken = default) |
Task<T> |
MaxByAsync(this Observable<T> source, Func<T, TKey> keySelector, IComparer<TKey> comparer, CancellationToken cancellationToken = default) |
Task<T> |
Merge(this Observable<T> source, Observable<T> second) |
Observable<T> |
MinAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<T> |
MinByAsync(this Observable<T> source, Func<T, TKey> keySelector, CancellationToken cancellationToken = default) |
Task<T> |
MinByAsync(this Observable<T> source, Func<T, TKey> keySelector, IComparer<TKey> comparer, CancellationToken cancellationToken = default) |
Task<T> |
MinMaxAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<ValueTuple<T, T>> |
Multicast(this Observable<T> source, ISubject<T> subject) |
ConnectableObservable<T> |
ObserveOn(this Observable<T> source, SynchronizationContext synchronizationContext) |
Observable<T> |
ObserveOn(this Observable<T> source, TimeProvider timeProvider) |
Observable<T> |
ObserveOn(this Observable<T> source, FrameProvider frameProvider) |
Observable<T> |
ObserveOnCurrentSynchronizationContext(this Observable<T> source) |
Observable<T> |
ObserveOnThreadPool(this Observable<T> source) |
Observable<T> |
OfType(this Observable<T> source) |
Observable<TResult> |
OnErrorResumeAsFailure(this Observable<T> source) |
Observable<T> |
Pairwise(this Observable<T> source) |
Observable<ValueTuple<T, T>> |
Prepend(this Observable<T> source, T value) |
Observable<T> |
Publish(this Observable<T> source) |
ConnectableObservable<T> |
Publish(this Observable<T> source, T initialValue) |
ConnectableObservable<T> |
RefCount(this ConnectableObservable<T> source) |
Observable<T> |
Replay(this Observable<T> source) |
ConnectableObservable<T> |
Replay(this Observable<T> source, Int32 bufferSize) |
ConnectableObservable<T> |
Replay(this Observable<T> source, TimeSpan window) |
ConnectableObservable<T> |
Replay(this Observable<T> source, TimeSpan window, TimeProvider timeProvider) |
ConnectableObservable<T> |
Replay(this Observable<T> source, Int32 bufferSize, TimeSpan window) |
ConnectableObservable<T> |
Replay(this Observable<T> source, Int32 bufferSize, TimeSpan window, TimeProvider timeProvider) |
ConnectableObservable<T> |
ReplayFrame(this Observable<T> source, Int32 window) |
ConnectableObservable<T> |
ReplayFrame(this Observable<T> source, Int32 window, FrameProvider frameProvider) |
ConnectableObservable<T> |
ReplayFrame(this Observable<T> source, Int32 bufferSize, Int32 window) |
ConnectableObservable<T> |
ReplayFrame(this Observable<T> source, Int32 bufferSize, Int32 window, FrameProvider frameProvider) |
ConnectableObservable<T> |
Scan(this Observable<TSource> source, Func<TSource, TSource, TSource> accumulator) |
Observable<TSource> |
Scan(this Observable<TSource> source, TAccumulate seed, Func<TAccumulate, TSource, TAccumulate> accumulator) |
Observable<TAccumulate> |
Select(this Observable<T> source, Func<T, TResult> selector) |
Observable<TResult> |
Select(this Observable<T> source, Func<T, Int32, TResult> selector) |
Observable<TResult> |
Select(this Observable<T> source, TState state, Func<T, TState, TResult> selector) |
Observable<TResult> |
Select(this Observable<T> source, TState state, Func<T, Int32, TState, TResult> selector) |
Observable<TResult> |
SelectMany(this Observable<TSource> source, Func<TSource, Observable<TResult>> selector) |
Observable<TResult> |
SelectMany(this Observable<TSource> source, Func<TSource, Observable<TCollection>> collectionSelector, Func<TSource, TCollection, TResult> resultSelector) |
Observable<TResult> |
SelectMany(this Observable<TSource> source, Func<TSource, Int32, Observable<TResult>> selector) |
Observable<TResult> |
SelectMany(this Observable<TSource> source, Func<TSource, Int32, Observable<TCollection>> collectionSelector, Func<TSource, Int32, TCollection, Int32, TResult> resultSelector) |
Observable<TResult> |
SequenceEqualAsync(this Observable<T> source, Observable<T> second, CancellationToken cancellationToken = default) |
Task<Boolean> |
SequenceEqualAsync(this Observable<T> source, Observable<T> second, IEqualityComparer<T> equalityComparer, CancellationToken cancellationToken = default) |
Task<Boolean> |
Share(this Observable<T> source) |
Observable<T> |
SingleAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<T> |
SingleAsync(this Observable<T> source, Func<T, Boolean> predicate, CancellationToken cancellationToken = default) |
Task<T> |
SingleOrDefaultAsync(this Observable<T> source, T defaultValue = default, CancellationToken cancellationToken = default) |
Task<T> |
SingleOrDefaultAsync(this Observable<T> source, Func<T, Boolean> predicate, T defaultValue = default, CancellationToken cancellationToken = default) |
Task<T> |
Skip(this Observable<T> source, Int32 count) |
Observable<T> |
Skip(this Observable<T> source, TimeSpan duration) |
Observable<T> |
Skip(this Observable<T> source, TimeSpan duration, TimeProvider timeProvider) |
Observable<T> |
SkipFrame(this Observable<T> source, Int32 frameCount) |
Observable<T> |
SkipFrame(this Observable<T> source, Int32 frameCount, FrameProvider frameProvider) |
Observable<T> |
SkipLast(this Observable<T> source, Int32 count) |
Observable<T> |
SkipLast(this Observable<T> source, TimeSpan duration) |
Observable<T> |
SkipLast(this Observable<T> source, TimeSpan duration, TimeProvider timeProvider) |
Observable<T> |
SkipLastFrame(this Observable<T> source, Int32 frameCount) |
Observable<T> |
SkipLastFrame(this Observable<T> source, Int32 frameCount, FrameProvider frameProvider) |
Observable<T> |
SkipUntil(this Observable<T> source, Observable<TOther> other) |
Observable<T> |
SkipUntil(this Observable<T> source, CancellationToken cancellationToken) |
Observable<T> |
SkipUntil(this Observable<T> source, Task task) |
Observable<T> |
SkipWhile(this Observable<T> source, Func<T, Boolean> predicate) |
Observable<T> |
SkipWhile(this Observable<T> source, Func<T, Int32, Boolean> predicate) |
Observable<T> |
SubscribeOn(this Observable<T> source, SynchronizationContext synchronizationContext) |
Observable<T> |
SubscribeOn(this Observable<T> source, TimeProvider timeProvider) |
Observable<T> |
SubscribeOn(this Observable<T> source, FrameProvider frameProvider) |
Observable<T> |
SubscribeOnCurrentSynchronizationContext(this Observable<T> source) |
Observable<T> |
SubscribeOnThreadPool(this Observable<T> source) |
Observable<T> |
SumAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<T> |
Switch(this Observable<Observable<T>> sources) |
Observable<T> |
Synchronize(this Observable<T> source) |
Observable<T> |
Synchronize(this Observable<T> source, Object gate) |
Observable<T> |
Take(this Observable<T> source, Int32 count) |
Observable<T> |
Take(this Observable<T> source, TimeSpan duration) |
Observable<T> |
Take(this Observable<T> source, TimeSpan duration, TimeProvider timeProvider) |
Observable<T> |
TakeFrame(this Observable<T> source, Int32 frameCount) |
Observable<T> |
TakeFrame(this Observable<T> source, Int32 frameCount, FrameProvider frameProvider) |
Observable<T> |
TakeLast(this Observable<T> source, Int32 count) |
Observable<T> |
TakeLast(this Observable<T> source, TimeSpan duration) |
Observable<T> |
TakeLast(this Observable<T> source, TimeSpan duration, TimeProvider timeProvider) |
Observable<T> |
TakeLastFrame(this Observable<T> source, Int32 frameCount) |
Observable<T> |
TakeLastFrame(this Observable<T> source, Int32 frameCount, FrameProvider frameProvider) |
Observable<T> |
TakeUntil(this Observable<T> source, Observable<TOther> other) |
Observable<T> |
TakeUntil(this Observable<T> source, CancellationToken cancellationToken) |
Observable<T> |
TakeUntil(this Observable<T> source, Task task) |
Observable<T> |
TakeWhile(this Observable<T> source, Func<T, Boolean> predicate) |
Observable<T> |
TakeWhile(this Observable<T> source, Func<T, Int32, Boolean> predicate) |
Observable<T> |
ThrottleFirst(this Observable<T> source, TimeSpan timeSpan) |
Observable<T> |
ThrottleFirst(this Observable<T> source, TimeSpan timeSpan, TimeProvider timeProvider) |
Observable<T> |
ThrottleFirstFrame(this Observable<T> source, Int32 frameCount) |
Observable<T> |
ThrottleFirstFrame(this Observable<T> source, Int32 frameCount, FrameProvider frameProvider) |
Observable<T> |
ThrottleLast(this Observable<T> source, TimeSpan timeSpan) |
Observable<T> |
ThrottleLast(this Observable<T> source, TimeSpan timeSpan, TimeProvider timeProvider) |
Observable<T> |
ThrottleLastFrame(this Observable<T> source, Int32 frameCount) |
Observable<T> |
ThrottleLastFrame(this Observable<T> source, Int32 frameCount, FrameProvider frameProvider) |
Observable<T> |
Timeout(this Observable<T> source, TimeSpan dueTime) |
Observable<T> |
Timeout(this Observable<T> source, TimeSpan dueTime, TimeProvider timeProvider) |
Observable<T> |
TimeoutFrame(this Observable<T> source, Int32 frameCount) |
Observable<T> |
TimeoutFrame(this Observable<T> source, Int32 frameCount, FrameProvider frameProvider) |
Observable<T> |
ToArrayAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<T[]> |
ToAsyncEnumerable(this Observable<T> source, CancellationToken cancellationToken = default) |
IAsyncEnumerable<T> |
ToDictionaryAsync(this Observable<T> source, Func<T, TKey> keySelector, CancellationToken cancellationToken = default) |
Task<Dictionary<TKey, T>> |
ToDictionaryAsync(this Observable<T> source, Func<T, TKey> keySelector, IEqualityComparer<TKey> keyComparer, CancellationToken cancellationToken = default) |
Task<Dictionary<TKey, T>> |
ToDictionaryAsync(this Observable<T> source, Func<T, TKey> keySelector, Func<T, TElement> elementSelector, CancellationToken cancellationToken = default) |
Task<Dictionary<TKey, TElement>> |
ToDictionaryAsync(this Observable<T> source, Func<T, TKey> keySelector, Func<T, TElement> elementSelector, IEqualityComparer<TKey> keyComparer, CancellationToken cancellationToken = default) |
Task<Dictionary<TKey, TElement>> |
ToHashSetAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<HashSet<T>> |
ToHashSetAsync(this Observable<T> source, IEqualityComparer<T> equalityComparer, CancellationToken cancellationToken = default) |
Task<HashSet<T>> |
ToListAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task<List<T>> |
ToLiveList(this Observable<T> source) |
LiveList<T> |
ToLiveList(this Observable<T> source, Int32 bufferSize) |
LiveList<T> |
ToLookupAsync(this Observable<T> source, Func<T, TKey> keySelector, CancellationToken cancellationToken = default) |
Task<ILookup<TKey, T>> |
ToLookupAsync(this Observable<T> source, Func<T, TKey> keySelector, IEqualityComparer<TKey> keyComparer, CancellationToken cancellationToken = default) |
Task<ILookup<TKey, T>> |
ToLookupAsync(this Observable<T> source, Func<T, TKey> keySelector, Func<T, TElement> elementSelector, CancellationToken cancellationToken = default) |
Task<ILookup<TKey, TElement>> |
ToLookupAsync(this Observable<T> source, Func<T, TKey> keySelector, Func<T, TElement> elementSelector, IEqualityComparer<TKey> keyComparer, CancellationToken cancellationToken = default) |
Task<ILookup<TKey, TElement>> |
WaitAsync(this Observable<T> source, CancellationToken cancellationToken = default) |
Task |
Where(this Observable<T> source, Func<T, Boolean> predicate) |
Observable<T> |
Where(this Observable<T> source, Func<T, Int32, Boolean> predicate) |
Observable<T> |
Where(this Observable<T> source, TState state, Func<T, TState, Boolean> predicate) |
Observable<T> |
Where(this Observable<T> source, TState state, Func<T, Int32, TState, Boolean> predicate) |
Observable<T> |
WithLatestFrom(this Observable<TFirst> first, Observable<TSecond> second, Func<TFirst, TSecond, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Func<T1, T2, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Func<T1, T2, T3, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Func<T1, T2, T3, T4, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Func<T1, T2, T3, T4, T5, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Func<T1, T2, T3, T4, T5, T6, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Func<T1, T2, T3, T4, T5, T6, T7, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Func<T1, T2, T3, T4, T5, T6, T7, T8, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Observable<T12> source12, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Observable<T12> source12, Observable<T13> source13, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Observable<T12> source12, Observable<T13> source13, Observable<T14> source14, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, TResult> resultSelector) |
Observable<TResult> |
Zip(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Observable<T12> source12, Observable<T13> source13, Observable<T14> source14, Observable<T15> source15, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Func<T1, T2, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Func<T1, T2, T3, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Func<T1, T2, T3, T4, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Func<T1, T2, T3, T4, T5, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Func<T1, T2, T3, T4, T5, T6, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Func<T1, T2, T3, T4, T5, T6, T7, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Func<T1, T2, T3, T4, T5, T6, T7, T8, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Observable<T12> source12, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Observable<T12> source12, Observable<T13> source13, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Observable<T12> source12, Observable<T13> source13, Observable<T14> source14, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, TResult> resultSelector) |
Observable<TResult> |
ZipLatest(this Observable<T1> source1, Observable<T2> source2, Observable<T3> source3, Observable<T4> source4, Observable<T5> source5, Observable<T6> source6, Observable<T7> source7, Observable<T8> source8, Observable<T9> source9, Observable<T10> source10, Observable<T11> source11, Observable<T12> source12, Observable<T13> source13, Observable<T14> source14, Observable<T15> source15, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, TResult> resultSelector) |
Observable<TResult> |
In dotnet/reactive, methods that return a single IObservable<T> (such as First) are all provided only as ***Async, returning Task<T>. Additionally, to align with the naming of Enumerable, Buffer has been changed to Chunk.
Throttle has been changed to Debounce, and Sample has been changed to ThrottleLast. Originally in dotnet/reactive, there were only Throttle and Sample, but later ThrottleFirst was added, leading to inconsistency in behavior and naming. The behavior of ThrottleFirst is similar to Sample (which is ThrottleLast), whereas Throttle has a completely different behavior. Therefore, Throttle was changed to the more commonly used Debounce, and Sample was changed to ThrottleLast for symmetry with ThrottleFirst. Additionally, I am opposed to keeping Sample as an alias for ThrottleLast. As a result of such methods being maintained, other libraries often receive questions like "What is the difference between ThrottleLast and Sample?"
Buffer->ChunkBatchFrame->ChunkFrameThrottle->DebounceThrottleFrame->DebounceFrameSample->ThrottleLastSampleFrame->ThrottleLastFrameObserveEveryValueChanged(this T value)->Observable.EveryValueChanged(T value)DistinctUntilChanged(selector)->DistinctUntilChangedByFinally->Do(onDisposed:)Do***->Do(on***:)BehaviorSubject->ReactivePropertyStableCompositeDisposable->Disposable.CombineIScheduler->TimeProvider- Return single value methods ->
***Async
This library is under the MIT License.