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Parallel.choose<'T,'U> Function (F#)

  • Article

Applies a supplied function to each element of an array and returns an array that contains the results for each element where the function returns Some.

Namespace/Module Path: Microsoft.FSharp.Collections.ArrayModule.Parallel

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

// Signature:
choose : ('T -> 'U option) -> 'T [] -> 'U []

// Usage:
choose chooser array

Parameters

  • chooser
    Type: 'T -> 'Uoption

    The function used to generate options from the elements.

  • array
    Type: 'T[]

    The input array.

Return Value

The array that contains the results for each element where the function returns Some.

Remarks

This function performs the operation in parallel by using System.Threading.Tasks.Parallel.For. The order in which the given function is applied to elements of the input array is not specified.

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

Platforms

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

Version Information

F# Core Library Versions

Supported in: 4.0

See Also

Reference

Array.Parallel Module (F#)

Collections.Array Module (F#)