Asynchronous programming in JavaScript

In JavaScript, asynchronous programming is a fundamental part of the language. It is the mechanism that allows us to perform operations in the background, without blocking the execution of the main thread. This is especially important in the browser, where the main thread is responsible for updating the user interface and responding to user actions.

Overall, asynchronous programming is a complex topic that requires a lot of practice to master, but in my opinion, it requires a change in your mindset. You will need to start thinking about how to break down your code into small chunks that can be executed in the background, and how to combine them to achieve the desired result. You’ll encounter asynchronous programming regularly while coding with JavaScript. Most operations involving interactions with external resources, such as sending and receiving data from a server or a database and reading the content from a file, will necessitate...