IAsyncEnumerable Explained — Async Streams in .NET

IAsyncEnumerable, yield return, cancellation tokens, vs IEnumerable, real-world streaming Most developers know IEnumerable<T> and async/await. IEnumerable<T> — lets you iterate a sequence. async/await — lets you do I/O without blocking threads. But IAsyncEnumerable<T> — introduced in C# 8 — combines both, and it solves a problem that neither alone handles well. It lets you iterate a sequence asynchronously — yielding items one at a time as they become available, without loading everything into m