If you’re returning information from a then or catch handler, it will always be wrapped in a promise, if it isn’t a promise already. So, you never need to write code like this: If you are unsure if ...

When building web pages or apps, you will often encounter the two terms async and await in JavaScript. These are terms frequently used in processes that fetch data from an API.In short, async/await is ...

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 ...

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 ...

JavaScript should not be judged as if it was a poor version of the other popular languages - it isn't a Java or a C++ clone. It does things its own way and sometime it can do unexpectedly clever ...