Functional programming, as the name implies, is about functions. While functions are part of just about every programming paradigm, including JavaScript, a functional programmer has unique ...

Asynchronous programming is essential to modern JavaScript development ... or responding to user inputs. For example, in a file reading operation, a callback function can be used to process ...

Bear in mind that this function does not return a value. Let’s look at a few examples that might give you an idea of what to do. If you write the same piece of code several times throughout your ...