Regarding how Async and Await works c#

Question

i saw some post regarding Async and Await usage in this site. few people are saying that Async and Await complete its job on separate background thread means spawn a new bac

Answer 1

Calling await is only possible inside methods marked as async. Once you await a function, the framework knows how to remember your current calling environment and return control to it once the awaited function completes.

You can only ever await functions that return Tasks. So all await deals with is the Task object that gets returned (and until a task is returned, the method you are awaiting is executing synchronously)

To provide you with a Task, the method you are awaiting could spawn a new thread to do it's job, it could synchronously return a completed task with a value (creating a task from a result), it can do whatever it wants. All await does is give the control back to the parent of your function until and unless the Task object you received from the awaitable method is complete. At that point it will continue the execution of your method from the await line.