AsyncLinqExtensions.

MergeMap<TSource, TResult>(IAsyncEnumerable<TSource>, Func<TSource, int, IAsyncEnumerable<TResult>>) Method

Summary

Projects each element of a sequence to an System.Collections.Generic.IAsyncEnumerable`1, and flattens the resulting sequences into one sequence. The index of each source element is used in the projected form of that element.
Assembly
Rocket.Surgery.Linq.Extensions.dll
Namespace
System.Linq
Containing Type
AsyncLinqExtensions

Syntax

public static IAsyncEnumerable<TResult> MergeMap<TSource, TResult>(this IAsyncEnumerable<TSource> source, Func<TSource, int, IAsyncEnumerable<TResult>> selector)

Type Parameters

Name Description
TSource The type of the elements of source.
TResult The type of the elements of the sequence returned by selector.

Parameters

Name Type Description
source IAsyncEnumerable<TSource> A sequence of values to project.
selector Func<TSource, int, IAsyncEnumerable<TResult>> A transform function to apply to each source element; the second parameter of the function represents the index of the source element.

Return Value

Type Description
IAsyncEnumerable<TResult> An System.Collections.Generic.IAsyncEnumerable`1 whose elements are the result of invoking the one-to-many transform function on each element of an input sequence.