Array.sortInPlaceBy<'T,'Key> Function (F#)
Sorts the elements of an array by mutating the array in place, using the given projection for the keys. Elements are compared using Operators.compare.
Namespace/Module Path: Microsoft.FSharp.Collections.Array
Assembly: FSharp.Core (in FSharp.Core.dll)
// Signature:
Array.sortInPlaceBy : ('T -> 'Key) -> 'T [] -> unit (requires comparison)
// Usage:
Array.sortInPlaceBy projection array
Parameters
projection
Type: 'T -> 'KeyThe function to transform array elements into the type that is compared.
array
Type: 'T []The input array.
Remarks
This is not a stable sort, that is, the original order of equal elements might not be preserved. For a stable sort, consider using Seq.sort.
This function is named SortInPlaceBy in compiled assemblies. If you are accessing the function from a language other than F#, or through reflection, use this name.
Example
The following code illustrates the use of Array.sortInPlaceBy.
let array1 = [|1; 4; 8; -2; 5|]
Array.sortInPlaceBy (fun elem -> abs elem) array1
printfn "%A" array1
Output
[|-2; 1; 4; 5; 8|]
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