Design pattern for managing multiple asynchronous JavaScript operations

Question

I\'m looking for a good design pattern for keeping track of a bunch of different asynchronous JavaScript activities (images loading, multiple AJAX calls, sequenced AJAX call

Answer 1

Though Promises afford us cleaner code we can do better with Generators. I wrote up a post on how to use Generators in Tame Async JavaScript with ES6. Using the pattern described will make handling complex async interactions easier to reason about and sets up a mental model for await capabilities planned for ES7.