One of the greatest doubts in Javascript programming, both for beginners and older programmers, is the async data flux.

In this talk, we'll deep dive into Promises and learn not only how they work by understanding the very building blocks that make it possible, but we'll also understand why sometimes Promises can also be the evil twin and make your application even slower than it should be and, of course, how we can prevent that from happening.

Are you ready to understand all the good, the bad, and the ugly about promises and the async flow under the hood?