Thanks for your reply. I ended up looking for a bit more on continuations from the perspective of JS Promises and found https://dev.to/homam/composability-from-

Thanks for your reply. I ended up looking for a bit more on continuations from the perspective of JS Promises and found https://dev.to/homam/composability-from-callbacks-to-categories-in-es6-17en https://dev.to/homam/composability-from-callbacks-to-categor... which was a pretty easy to follow read on this if you take the time to understand the JS, though there might be better references to continuations elsewhere, this was just one of the first I found.