Let me attempt to clarify a few things with fresh eyes: Javascript doesn't have threads, so true coroutines not really possible (w/o webworkers). If you lock u

Let me attempt to clarify a few things with fresh eyes: Javascript doesn't have threads, so true coroutines not really possible (w/o webworkers). If you lock up the event loop in one of Joy's goroutines, the other's won't proceed. This limitation doesn't mean that we can't use the CSP concurrency model in an awesome way in Javascript. If you search NPM for csp or channel, you'll find some good examples. For the Go programs I've come across using goroutines, calling an async function like this (async () => {})() is a good enough approximation for frontend development. You may lose out on true parallelism and better error handling, but that's the JS environment we're targeting.