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Array.empty<'T> Type Function (F#)

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

Returns an empty array of the given type.

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

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


// Signature:
Array.empty<'T> :  'T []

// Usage:

Return Value

An empty array.


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


The following code shows how to use Array.empty.

// Specify the type by using a type argument.
let array1 = Array.empty<int>
// Specify the type by using a type annotation.
let array2 : int array = Array.empty

// Even though array3 has a generic type,
// you can still use methods such as Length on it.
let array3 = Array.empty
printfn "Length of empty array: %d" array3.Length


Length of empty array: 0


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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