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

Den Delimarsky|Last Updated: 6/8/2016
1 Contributor

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


action Type: 'T ->unit

The function to apply.

array 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 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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