Summary
Applies an accumulator function over an async sequence, returning the result of the aggregation as a single element in the result sequence.
For aggregation behavior with incremental intermediate results.
Syntax
public static ValueTask<TSource> ReduceAsync<TSource>(this IAsyncEnumerable<TSource> source, Func<TSource, TSource, TSource> accumulator, CancellationToken cancellationToken)
The return type of this operator differs from the corresponding operator on IAsyncEnumerable in order to retain asynchronous behavior.
Type Parameters
| Name |
Description |
| TSource |
The type of the elements in the source sequence and the result of the aggregation. |
Parameters
| Name |
Type |
Description |
| source |
IAsyncEnumerable<TSource> |
An async sequence to aggregate over. |
| accumulator |
Func<TSource, TSource, TSource> |
An accumulator function to be invoked on each element. |
| cancellationToken |
CancellationToken |
The cancelation token |
Return Value
| Type |
Description |
| ValueTask<TSource> |
An async sequence containing a single element with the final accumulator value. |
