Yes, I'm not anymore a heavy user of fibers and I could answer correctly all these questions. Is pretty much vanilla js with some little knowledge about promise

Yes, I'm not anymore a heavy user of fibers and I could answer correctly all these questions. Is pretty much vanilla js with some little knowledge about promises. Anyway I would suggest anyone to take a look into fibers, you can write sync non-blocking code which is a delight to work with. No need of callbacks and promises.