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

Developers use JavaScript promises to model asynchronous operations in web and server-side programs. Here's a quick look at five ways to use promises in your code. Promises are a central mechanism for ...

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 ...

When we first began implementing Promises there was a big problem. It was essential to provide functions so that the code that was using the Promise to signal when it was finished could change the ...