Table of contents
Collapse the table of content
Expand the table of content<'T,'U> Function (F#)

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

Returns an observable which transforms the observations of the source by the given function. The transformation function is executed once for each subscribed observer. The returned object also propagates error observations arising from the source and completes when the source completes.

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

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


// Signature: : ('T -> 'U) -> IObservable<'T> -> IObservable<'U>

// Usage: mapping source


mapping Type: 'T -> 'U

The function applied to observations from the source.

source Type: IObservable<'T>

The input Observable.

Return Value

An Observable of the type specified by mapping.


This function is named Map 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, Portable

See Also

Control.Observable Module (F#)

Microsoft.FSharp.Control Namespace (F#)

© 2019 Microsoft