Array.length<'T> Function (F#)
Returns the length of an array.
Namespace/Module Path: Microsoft.FSharp.Collections.Array
Assembly: FSharp.Core (in FSharp.Core.dll)
// Signature:
Array.length : 'T [] -> int
// Usage:
Array.length array
Parameters
array
Type: 'T []The input array.
Return Value
The length of the array.
Remarks
You can also use property Length.
This function is named Length 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 example demonstrates how to use Array.length.
Array.length [| 1 .. 100 |] |> printfn "Length: %d"
Array.length [| |] |> printfn "Length: %d"
Array.length [| 1 .. 2 .. 100 |] |> printfn "Length: %d"
Output
Length: 100 Length: 0 Length: 50
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