IEnumerable.ForEach(...)

An extension method to look over a sequence of elements and perform an async action on each element.

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async Task ForEachAsync<T>(this IEnumerable<T> sequence, Func<T, int, Task> action)

Parameters

• sequence: Extends the IEnumerable<T> interface.
• action: An async action to perform on each element in the sequence. It takes two parameters and returns a Task
  • T: A single element from the sequence.
  • int: The (virtual) index of the element in the sequence.

Example

await aSequence.ForEachAsync(async (e,i) => {
    await aWriter.WriteLine($"Item {i}: {e}");
});

async Task ForEachAsync<T>(this IEnumerable<T> sequence, Func<T, Task> action)

Parameters

• sequence: Extends the IEnumerable<T> interface.
• action: An action to perform on each element in the sequence. It takes two parameters
  • T: A single element from the sequence.
  • int: The (virtual) index of the element in the sequence.

Example

await aSequence.ForEachAsync(async (e) => {
    await aWriter.WriteLineAsync($"Item: {e}");
});