IEnumerable_Reduce.Reduce<TItem, TReduction> (IEnumerable<TItem>, Func<TItemTReductionTReduction>) Method

public static TReduction Reduce<TItem, TReduction>( 
   this IEnumerable<TItem> itemsIn, 
   Func<TItem, TReduction, TReduction> byApplying 
) 
   where TReduction : new(), >, Reduce(new, byApplying)

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Type Parameters

TItem

The type of the enumeration items to be aggregated.

TReduction

The type of aggregation result. Since this type is instantiated inside this method to give the aggregation an initial value, it must have a public parameterless constructor.

Parameters

itemsIn

Type: IEnumerable<TItem>

The enumeration to be aggregated.

byApplying

Type: Func<TItem, TReduction, TReduction>

The aggregation function to be applied on each of the enumeration items, which are injected alongside with the previous iteration aggregation result, as arguments into this function when called.

Return Value

Windows, Windows Server, OS X, macOS, iOS, tvOS, Android, Linux, AWS, Azure

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Others