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AsyncBuilder.Combine<'T> Method (F#)

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

Creates an asynchronous computation that first runs one computation and then runs another computation, returning the result of the second computation.

Namespace/Module Path: Microsoft.FSharp.Control

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


// Signature:
member this.Combine : Async<unit> * Async<'T> -> Async<'T>

// Usage:
asyncBuilder.Combine (computation1, computation2)


computation1 Type: Async<unit>

The first part of the sequenced computation.

computation2 Type: Async<'T>

The second part of the sequenced computation.

Return Value

An asynchronous computation that runs both of the computations sequentially.


A cancellation check is performed when the computation is executed. The existence of this method permits the use of expression sequencing in the async { ... } computation expression syntax.


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.AsyncBuilder Class (F#)

Microsoft.FSharp.Control Namespace (F#)

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