JavaScript is a single-threaded language living in a multimedia, multi-tasking, multi-core world. Even experienced JavaScripters sometimes find themselves overwhelmed as complex apps grow into a tangled web of callbacks.
With Async JavaScript, you'll learn about:
Event scheduling
The PubSub pattern
Promises and Deferred objects
Flow control with Async.js
Recipes for common async scenarios
Multi-threading with Web Workers
AltJS languages
and more, with examples tailored to jQuery and Node.js.