Asynchronous programming is a form of parallel programming that enables you to execute tasks separate from the main application thread and then notifies the thread when its execution is over.

JavaScript could be the most widely used programming language in the world, but for many developers, its modern version looks very different from what they first learned. With the advent of ECMAScript ...

Say that you're developing an tool that let's users customize it via JavaScript. Some of the common functions that will be called from the scripts are fundamentally asynchronous - they ultimately are ...

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 ...