Cons<'T> Method

List.Cons<'T> Method (F#)


Returns a list with head as its first element and tail as its subsequent elements.

Namespace/Module Path: Microsoft.FSharp.Collections

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

// Signature:
static member List.Cons : 'T * 'T list -> 'T list

// Usage:
List.Cons (head, tail)


Type: 'T

A new head value for the list.


Type: 'T list

The existing list.

The list with head appended to the front of tail.

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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