Array.collect<'T,'U> Function (F#)

For each element of the array, applies the given function. Concatenates all the results and return the combined array.

Namespace/Module Path: Microsoft.FSharp.Collections.Array

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

// Signature:
Array.collect : ('T -> 'U []) -> 'T [] -> 'U []

// Usage:
Array.collect mapping array

Parameters

  • mapping
    Type: 'T -> 'U []

    The function to create sub-arrays from the input array elements.

  • array
    Type: 'T []

    The input array.

Return Value

The concatenation of the subarrays.

Example

The following code demonstrates the use of Array.collect to concatenate subarrays that are generated from each array element.

printfn "%A" (Array.collect (fun elem -> [| 0 .. elem |]) [| 1; 5; 10|])
[|0; 1; 0; 1; 2; 3; 4; 5; 0; 1; 2; 3; 4; 5; 6; 7; 8; 9; 10|]

Remarks

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

Platforms

Windows 7, Windows Vista SP2, Windows XP SP3, Windows XP x64 SP2, Windows Server 2008 R2, Windows Server 2008 SP2, Windows Server 2003 SP2

Version Information

F# Runtime

Supported in: 2.0, 4.0

Silverlight

Supported in: 3

See Also

Reference

Collections.Array Module (F#)

Microsoft.FSharp.Collections Namespace (F#)