AsyncEnumerable.Union<TSource> Method
Definition
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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
second
is null
.
Applies to
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