promise-fun

Ease of understanding multithreaded code and wait on results or perform standard control flow constructs in a multithreaded environment? This is a great example in Node on useful combinators that with async await make it easy to express parallel programming concepts with familiar tools. No manual IPC, no fork/join child PID/thread ID handling, etc. https://github.com/sindresorhus/promise-fun The same abstractions (or many of them) exist in Rust, but I think the above is illustrative of the ways we can combine async object returning functions and then use await to hide the complexity of the state machines needed to drive them. That this abstraction that makes code easy to read and write also performs better is the icing on the cake. The former prevents bugs and keeps code quality high, and that is worth much more.

Sindre built some great little modules that make working with promises a breeze. https://github.com/sindresorhus/promise-fun