It’s been a while since I wrote a JavaScript article, so here it is! Today we are going to reveal one of the biggest front-end mystery. How does async work in JavaScript? The question might seem quite obvious, but believe me that many developers think that it’s because of multi-threading. Well, here is the thing. Async does not require more than one thread. If you don’t believe me click here to confirm that. Ok, fine, let’s say that we need multi-threading to do async. But here comes the thing that confu...