Fold Method (source, folder)

Returns the result of applying a function to a sequence of 2 elements.

Declaration Syntax

Visual Basic

Visual C++

public static TResult Fold<T, TResult>(
	this IEnumerable<T> source,
	Func<T, T, TResult> folder
)

<ExtensionAttribute> _
Public Shared Function Fold(Of T, TResult) ( _
	source As IEnumerable(Of T), _
	folder As Func(Of T, T, TResult) _
) As TResult

public:
[ExtensionAttribute]
generic<typename T, typename TResult>
static TResult Fold(
	IEnumerable<T>^ source, 
	Func<T, T, TResult>^ folder
)

Generic Template Parameters

T: Type of element in the source sequence
TResult: Type of the result

Parameters

source (IEnumerable<(Of <(<'T>)>)>): The sequence of items to fold.

folder (Func<(Of <(<'T, T, TResult>)>)>): Function to apply to the elements in the sequence.

Return Value

[Missing <returns> documentation for "M:MoreLinq.MoreEnumerable.Fold``2(System.Collections.Generic.IEnumerable{``0},System.Func{``0,``0,``1})"]

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerable<(Of <(<'T>)>)>. When you use instance method syntax to call this method, omit the first parameter.

Remarks

This operator uses immediate execution and effectively buffers as many items of the source sequence as necessary.

Assembly: MoreLinq (Module: MoreLinq.dll) Version: 1.0.16006.0 (1.0.16006.1845)