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

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:
Array.empty

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

Output

Length of empty array: 0

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

F# Core Library Versions

Supported in: 2.0, 4.0, Portable

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