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Observable.partition<'T> Function (F#)

Den Delimarsky|Last Updated: 8/18/2017
1 Contributor

Returns two observables which partition the observations of the source by the given function. The first will trigger observations for those values for which the predicate returns true. The second will trigger observations for those values where the predicate returns false. The predicate is executed once for each subscribed observer. Both also propagate all error observations arising from the source and each completes when the source completes.

Namespace/Module Path: Microsoft.FSharp.Control.Observable

Assembly: FSharp.Core (in FSharp.Core.dll)


// Signature:
Observable.partition : ('T -> bool) -> IObservable<'T> -> IObservable<'T> * IObservable<'T>

// Usage:
Observable.partition predicate source


predicate Type: 'T ->bool

The function to determine which output Observable will trigger a particular observation.

source Type: IObservable<'T>

The input Observable.

Return Value

A tuple of observables. The first triggers when the predicate returns true, and the second triggers when the predicate returns false.


This function is named Partition in compiled assemblies. If you are accessing the function from a language other than F#, or through reflection, use this name.


Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2

Version Information

F# Core Library Versions

Supported in: 2.0, 4.0, Portable

See Also

Control.Observable Module (F#)

Microsoft.FSharp.Control Namespace (F#)

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