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

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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

Parameters

  • reduction
    Type: 'T -> 'T -> 'T

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

  • list
    Type: 'T list

    The input list.

Exceptions

Exception

Condition

ArgumentException

Thrown when the list is empty.

Return Value

The final reduced value.

Remarks

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.

Platforms

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

See Also

Reference

Collections.List Module (F#)

Microsoft.FSharp.Collections Namespace (F#)