Effection: For When Async/Await Is Not Enough

I'm not sure I buy the premise for the library's existence, at least with how the author describes it. The setTimeout code in particular feels very contrived. If you don't want to spawn fire-and-forget functions then just don't spawn them. Like an equivalent in C#:

  async Task DoSomethingAsync()
  {
    // Oh no! This task is fire-and-forget! Whatever shall I do?!?
    Task.Run(async () => await DoSomethingElseAsync());
    ...
  }

Just... don't write code like that. The natural function of Promises when awaited is to wait for the Promise to become fulfilled.

The "timed Promise" concept is interesting. In C#, we use CancellationToken for that along with some kind of timer that requests cancellation of the token after an interval. I think adding something like cancellation tokens to JavaScript might be a better course of action.