AsyncEnumerable.MinAsync<TSource> Method
Definition
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Returns the minimum value in a generic sequence.
public static System.Threading.Tasks.ValueTask<TSource?> MinAsync<TSource>(this System.Collections.Generic.IAsyncEnumerable<TSource> source, System.Collections.Generic.IComparer<TSource>? comparer = default, System.Threading.CancellationToken cancellationToken = default);
static member MinAsync : System.Collections.Generic.IAsyncEnumerable<'Source> * System.Collections.Generic.IComparer<'Source> * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<'Source>
<Extension()>
Public Function MinAsync(Of TSource) (source As IAsyncEnumerable(Of TSource), Optional comparer As IComparer(Of TSource) = Nothing, Optional cancellationToken As CancellationToken = Nothing) As ValueTask(Of TSource)
Type Parameters
- TSource
The type of the elements of source
.
Parameters
- source
- IAsyncEnumerable<TSource>
A sequence of values to determine the minimum value of.
- comparer
- IComparer<TSource>
The IComparer<T> to compare values.
- cancellationToken
- CancellationToken
The CancellationToken to monitor for cancellation requests. The default is None.
Returns
The minimum value in the sequence.
Exceptions
source
is null
.
No object in source
implements the IComparable or IComparable<T> interface.
Remarks
If type TSource
implements IComparable<T>, the MinAsync<TSource>(IAsyncEnumerable<TSource>, IComparer<TSource>, CancellationToken) method uses that implementation to compare values. Otherwise, if type TSource
implements IComparable, that implementation is used to compare values.
If TSource
is a reference type and the source sequence is empty or contains only values that are null
, this method returns null
.