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

Applies the given function to each element of the array.

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

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

// Signature:
Array.iter : ('T -> unit) -> 'T [] -> unit

// Usage:
Array.iter action array


Type: 'T -> unit

The function to apply.


Type: 'T []

The input array.

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

The following code demonstrates the use of Array.iter.

printf "Array.iter: "
Array.iter (fun (a,b) -> printf "(%d, %d) " a b) [| for i in 1..5 -> (i, i*i) |]

Array.iter: (1, 1) (2, 4) (3, 9) (4, 16) (5, 25)

Windows 7, Windows Vista SP2, Windows XP SP3, Windows XP x64 SP2, Windows Server 2008 R2, Windows Server 2008 SP2, Windows Server 2003 SP2

F# Runtime

Supported in: 2.0, 4.0


Supported in: 3

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