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Array.rev<'T> Function (F#)

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

Returns a new array with the elements in reverse order.

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

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


// Signature:
Array.rev : 'T [] -> 'T []

// Usage:
Array.rev array


array Type: 'T[]

The input array.

Return Value

The reversed array.


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


The following example shows how to reverse the elements in an array by using Array.rev.

let stringReverse (s: string) =
    System.String(Array.rev (s.ToCharArray()))

printfn "%A" (stringReverse("!dlrow olleH"))
"Hello world!"


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

Collections.Array Module (F#)

Microsoft.FSharp.Collections Namespace (F#)

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