Asynchronous code (async code) says: go do something while I do other things, then let me know what happened when the results are ready. Also known as concurrency, async is important in a variety of ...

The new async and await keywords in JavaScript are probably the best and almost complete solution to the asynchronous programming problem. In JavaScript, however, they are built on top of the Promise ...

Events are the first place you are likely to meet asynchronous functions, but once you have events and an event dispatching system you can't stop there. Any long running function has to be implemented ...