Book Image

Advanced JavaScript

By : Zachary Shute
Book Image

Advanced JavaScript

By: Zachary Shute

Overview of this book

If you are looking for a programming language to develop flexible and efficient applications, JavaScript is an obvious choice. Advanced JavaScript is a hands-on guide that takes you through JavaScript and its many features, one step at a time. You'll begin by learning how to use the new JavaScript syntax in ES6, and then work through the many other features that modern JavaScript has to offer. As you progress through the chapters, you’ll use asynchronous programming with callbacks and promises, handle browser events, and perform Document Object Model (DOM) manipulation. You'll also explore various methods of testing JavaScript projects. In the concluding chapters, you'll discover functional programming and learn to use it to build your apps. With this book as your guide, you'll also be able to develop APIs using Node.js and Express, create front-ends using React/Redux, and build mobile apps using React/Expo. By the end of Advanced JavaScript, you will have explored the features and benefits of JavaScript to build small applications.
Table of Contents (9 chapters)


Node.js (Node for short), which was developed in 2009 by Ryan Dahl, is the most popular out-of-browser JavaScript engine. Node is an open source, cross-platform JavaScript runtime environment that was based on Chrome's V8 JavaScript engine. It is used to run JavaScript code outside of the browser for non-client, side applications.

Like Google's V8 JavaScript engine in Chrome, Node.js uses a singly-threaded, event-driven, asynchronous architecture. It allows developers to use JavaScript's event-driven programming style to build web servers, services, and CLI tools. As discussed in Chapter 2, Asynchronous JavaScript, JavaScript is a non-blocking and event-driven programming language. JavaScript's asynchronous nature (a single-threaded event loop), along with Node's lightweight design, allows us to build very scalable network applications without worrying about threading.


As discussed in Chapter 2, Asynchronous JavaScript, JavaScript is single-threaded. Synchronous code running on...