Generators have lots of really nice uses, yep. I'm not sure what specifically you were imagining, but I've added an example of how "vanilla JS" can achieve fan

Generators have lots of really nice uses, yep. I'm not sure what specifically you were imagining, but I've added an example of how "vanilla JS" can achieve fan-in, using an AsyncGenerator: https://github.com/joeycumines/ts-chan/blob/main/docs/pattern-fan-in.md#without-ts-chan https://github.com/joeycumines/ts-chan/blob/main/docs/patter... It uses one of the patterns suggested in a comment chain above, which I think is pretty neat, and wasn't one that readily occurred to me: https://news.ycombinator.com/item?id=38163562 https://news.ycombinator.com/item?id=38163562 I'm not making a case for using ts-chan for any situation where a simple generator-based solution suffices. I wouldn't call the example solution (in my first link) simple, but it's something I'd personally be ok with maintaining. Like, I'd approve a PR containing something similar without significant qualms, _if_ there was a significant enough motivator, and it was sufficiently unit tested. I might suggest `ts-chan` as an alternative, to make it easier to maintain, but wouldn't be particularly concerned either way. That's all very subjective, though :)