await AsyncMethod() versus await await Task.Factory.StartNew(AsyncMethod)

Question

Given the following method:

public async Task DoSomethingAsync() {
    // do some work
    await OpenSomeFileAsync();
    return new MyObject();
         


        

Answer 1

Yes, there is a difference: in the first form, you have an extra level of Task, which brings absolutely nothing useful.

The first form is basically equivalent to this:

Task> task1 = Task.Factory.StartNew>( DoSomethingAsync);
Task> task2 = await task1;
var myObject = await task2;

So it doesn't really make sense: you're creating a task that just... creates another task.