async-await Getting started with async-await async void

Example

You can use void (instead of Task) as a return type of an asynchronous method. This will result in a "fire-and-forget" action:

public void DoStuff()
{
    FireAndForgetAsync();
}
    
private async void FireAndForgetAsync()
{
    await Task.Delay(1000);
    throw new Exception(); //will be swallowed
}

As you are returning void, you can not await FireAndForgetAsync. You will not be able to know when the method finishes, and any exception raised inside the async void method will be swallowed.