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F# Core Library Reference

Microsoft.FSharp.Collections Namespace (F#)

Collections.List Module (F#)

List.append<'T> Function (F#)

List.average<^T> Function (F#)

List.averageBy<'T,^U> Function (F#)

List.choose<'T,'U> Function (F#)

List.collect<'T,'U> Function (F#)

List.concat<'T> Function (F#)

List.empty<'T> Type Function (F#)

List.exists<'T> Function (F#)

List.exists2<'T1,'T2> Function (F#)

List.filter<'T> Function (F#)

List.find<'T> Function (F#)

List.findIndex<'T> Function (F#)

List.fold<'T,'State> Function (F#)

List.fold2<'T1,'T2,'State> Function (F#)

List.foldBack<'T,'State> Function (F#)

List.foldBack2<'T1,'T2,'State> Function (F#)

List.forall<'T> Function (F#)

List.forall2<'T1,'T2> Function (F#)

List.head<'T> Function (F#)

List.init<'T> Function (F#)

List.isEmpty<'T> Function (F#)

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

List.iter2<'T1,'T2> Function (F#)

List.iteri<'T> Function (F#)

List.iteri2<'T1,'T2> Function (F#)

List.length<'T> Function (F#)

List.map<'T,'U> Function (F#)

List.map2<'T1,'T2,'U> Function (F#)

List.map3<'T1,'T2,'T3,'U> Function (F#)

List.mapi<'T,'U> Function (F#)

List.mapi2<'T1,'T2,'U> Function (F#)

List.max<'T> Function (F#)

List.maxBy<'T,'U> Function (F#)

List.min<'T> Function (F#)

List.minBy<'T,'U> Function (F#)

List.nth<'T> Function (F#)

List.ofArray<'T> Function (F#)

List.ofSeq<'T> Function (F#)

List.partition<'T> Function (F#)

List.permute<'T> Function (F#)

List.pick<'T,'U> Function (F#)

List.reduce<'T> Function (F#)

List.reduceBack<'T> Function (F#)

List.replicate<'T> Function (F#)

List.rev<'T> Function (F#)

List.scan<'T,'State> Function (F#)

List.scanBack<'T,'State> Function (F#)

List.sort<'T> Function (F#)

List.sortBy<'T,'Key> Function (F#)

List.sortWith<'T> Function (F#)

List.sum<^T> Function (F#)

List.sumBy<'T,^U> Function (F#)

List.tail<'T> Function (F#)

List.toArray<'T> Function (F#)

List.toSeq<'T> Function (F#)

List.tryFind<'T> Function (F#)

List.tryFindIndex<'T> Function (F#)

List.tryPick<'T,'U> Function (F#)

List.unzip<'T1,'T2> Function (F#)

List.unzip3<'T1,'T2,'T3> Function (F#)

List.zip<'T1,'T2> Function (F#)

List.zip3<'T1,'T2,'T3> Function (F#)

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List.reduceBack<'T> Function (F#)

Visual Studio 2010

Visual Studio 2012

Applies a function to each element of the collection, threading an accumulator argument through the computation. If the input function is f and the elements are i0...iN, then this function computes f i0 (...(f iN-1 iN)).

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

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

// Signature:
List.reduceBack : ('T -> 'T -> 'T) -> 'T list -> 'T

// Usage:
List.reduceBack reduction list

reduction

Type: 'T -> 'T -> 'T

The function to reduce two list elements to a single element.

list

Type: 'T list

The input list.

Exception	Condition
ArgumentException	Thrown when the list is empty.

The final reduced value.

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

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

Reference

Collections.List Module (F#)

Microsoft.FSharp.Collections Namespace (F#)

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