When building web pages or apps, you will often encounter the two terms async and await in JavaScript. These are terms ...

The sort of asynchronous function we constructed in the previous chapter is more like simulated async rather than the real thing. It is simply a way of breaking up the execution into small chunks that ...

Promises are still relatively new and this means that there are asynchronous functions that don't make use of them. This leads on to the need to promisify existing and future code. In this extract ...

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 ...