What is the purpose/advantage of using yield return iterators in C#?

Question

All of the examples I\'ve seen of using yield return x; inside a C# method could be done in the same way by just returning the whole list. In those cases, is th

Answer 1

In toy/demonstration scenarios, there isn't a lot of difference. But there are situations where yielding iterators are useful - sometimes, the entire list isn't available (e.g. streams), or the list is computationally expensive and unlikely to be needed in its entirety.