[joeycumines]

Yep, JS is still single threaded, and all that.

I agree async iteration is pretty good - the `Chan` class implements both `Iterable` and `AsyncIterable`.

For quite a few scenarios, async generators are a better choice. They do have limitations, however. For example, you _can_ implement fan-in, but there's no easy mechanism to fan-in in a blocking manner, from sources that aren't known ahead of time. It's also hard to implement a "fair" mechanism, that doesn't bias certain inputs (like you might desire if multiplexing logs, for example).

[kreetx]

The value proposition of the library became much clearer, thanks for explaining!

[felipellrocha]

Couldn’t you spin N workers and assign work to them?

[joeycumines]

Fan-in is the other way, but yeah you can do batches of concurrent operations in JS fairly easily.

I still like "pipelining" over that, but that can also be implemented with just an iterator, pretty trivially.