Method WindowLeft

WindowLeft<TSource>(IAsyncEnumerable<TSource>, int)

Creates a left-aligned sliding window of a given size over the source sequence.

Declaration

public static IAsyncEnumerable<IList<TSource>> WindowLeft<TSource>(this IAsyncEnumerable<TSource> source, int size)

Parameters

Type	Name	Description
IAsyncEnumerable<TSource>	source	The sequence over which to create the sliding window.
int	size	Size of the sliding window.

Returns

Type	Description
IAsyncEnumerable<IList<TSource>>	A sequence representing each sliding window.

Type Parameters

Name	Description
TSource	The type of the elements of source.

Remarks

A window can contain fewer elements than size, especially as it slides over the end of the sequence.

This operator uses deferred execution and streams its results.

Examples

Console.WriteLine(
    Enumerable
        .Range(1, 5)
        .WindowLeft(3)
        .Select(w => "AVG(" + w.ToDelimitedString(",") + ") = " + w.Average())
        .ToDelimitedString(Environment.NewLine));

// Output:
// AVG(1,2,3) = 2
// AVG(2,3,4) = 3
// AVG(3,4,5) = 4
// AVG(4,5) = 4.5
// AVG(5) = 5