Hi,
I have two opinion about async void function,
1. I think async(or sync) function should has a returning value even if
type is void.
```
let result = await somethingAsyncVoid()
```
In this case the `result` will available when `someThingAsyncVoid` was
completed.
Someone can omit it, but it shou
Hi there,
In my opinion, `map` vs `flatMap` confusing comes from implicitly casting
`T` to `T?`.
I believe it make many confusing and problems that compiler allow this
implicitly casting.
1 way of solve this topic that show warning if use implicitly casting `T`
to `T?`. Of course it should be expl
