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

Fills a range of elements of the array with the given value.

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

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

// Signature:
Array.fill : 'T [] -> int -> int -> 'T -> unit

// Usage:
Array.fill target targetIndex count value

target

Type: 'T []

The target array.

targetIndex

Type: int

The index of the first element to set.

count

Type: int

The number of elements to set.

value

Type: 'T

The value to set.

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

The following example demonstrates the use of Array.fill to overwrite a section of an array with zeroes.

let arrayFill1 = [| 1 .. 25 |]
Array.fill arrayFill1 2 20 0
printfn "%A" arrayFill1
[|1; 2; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 23; 24; 25|]

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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