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AsyncEnumerable.Union<TSource> Method

  • Reference

Definition

Namespace:
System.Linq
Assembly:
System.Linq.AsyncEnumerable.dll
Package:
System.Linq.AsyncEnumerable v10.0.0-preview.1.25080.5
Source:
Union.cs

Produces the set union of two sequences.

public static System.Collections.Generic.IAsyncEnumerable<TSource> Union<TSource>(this System.Collections.Generic.IAsyncEnumerable<TSource> first, System.Collections.Generic.IAsyncEnumerable<TSource> second, System.Collections.Generic.IEqualityComparer<TSource>? comparer = default);
static member Union : System.Collections.Generic.IAsyncEnumerable<'Source> * System.Collections.Generic.IAsyncEnumerable<'Source> * System.Collections.Generic.IEqualityComparer<'Source> -> System.Collections.Generic.IAsyncEnumerable<'Source>
<Extension()>
Public Function Union(Of TSource) (first As IAsyncEnumerable(Of TSource), second As IAsyncEnumerable(Of TSource), Optional comparer As IEqualityComparer(Of TSource) = Nothing) As IAsyncEnumerable(Of TSource)

Type Parameters

TSource

Parameters

first
IAsyncEnumerable<TSource>

An IAsyncEnumerable<T> whose distinct elements form the first set for the union.

second
IAsyncEnumerable<TSource>

An IAsyncEnumerable<T> whose distinct elements form the second set for the union.

comparer
IEqualityComparer<TSource>

An IEqualityComparer<T> to compare keys.

Returns

IAsyncEnumerable<TSource>

An IAsyncEnumerable<T> that contains the elements from both input sequences, excluding duplicates.

Exceptions

ArgumentNullException

second is null.

Applies to