What are the differences between popular async JavaScript libraries?

Can you explain the differences between async.js, Bluebird, and Q?

Sure! Async.js is great for managing asynchronous control flow, while Bluebird offers advanced features like promises and performance optimizations. Q is a more lightweight option focused on promises.

Which one should I use for a new project?

It depends on your needs. If you need advanced features and performance, go with Bluebird. For simpler use cases, Async.js might be sufficient.

Are there any performance benchmarks comparing them?

Yes, there are several benchmarks available online. Bluebird generally performs better in promise-heavy scenarios, while Async.js excels in managing complex workflows.

What about compatibility with Node.js?

All three libraries are compatible with Node.js, but Bluebird is often preferred for its extensive features and performance in Node environments.