There is no need for hacks, just run node with the `--harmony` flag to get yield support today.

Q is a huge, monster library. It's 2x the size of caolan/async, which is already bloated. I personally think it's better to use https://github.com/mbostock/queue or another small, understandable library.

Respectfully, is it possible you've confused Q with something else? I compressed and minified both caolan/async and kriskowal/q. Result: async is 3.4 KB, q is 4.1 KB.

I grant you that mbostock's queue is even smaller, but all are so tiny as to be a trivial download even on mobile.

The important issue here is IMHO not the size of the libraries, but how much they help you write maintainable code.

If you're taking about node, what difference does it make how large the library is?

These libraries work in the browser. It's not just size: debugging, understanding code, and performance matter too.

Q and ECMAScript 6 solve the callback issue, but I think people might like the built in async iterators and error handling.