Book Image

Professional JavaScript

By : Hugo Di Francesco, Siyuan Gao, Vinicius Isola, Philip Kirkbride
Book Image

Professional JavaScript

By: Hugo Di Francesco, Siyuan Gao, Vinicius Isola, Philip Kirkbride

Overview of this book

In depth knowledge of JavaScript makes it easier to learn a variety of other frameworks, including React, Angular, and related tools and libraries. This book is designed to help you cover the core JavaScript concepts you need to build modern applications. You'll start by learning how to represent an HTML document in the Document Object Model (DOM). Then, you'll combine your knowledge of the DOM and Node.js to create a web scraper for practical situations. As you read through further lessons, you'll create a Node.js-based RESTful API using the Express library for Node.js. You'll also understand how modular designs can be used for better reusability and collaboration with multiple developers on a single project. Later lessons will guide you through building unit tests, which ensure that the core functionality of your program is not affected over time. The book will also demonstrate how constructors, async/await, and events can load your applications quickly and efficiently. Finally, you'll gain useful insights into functional programming concepts such as immutability, pure functions, and higher-order functions. By the end of this book, you'll have the skills you need to tackle any real-world JavaScript development problem using a modern JavaScript approach, both for the client and server sides.
Table of Contents (12 chapters)

Summary

In this chapter, we learned about what Node.js is and how its single-threaded, asynchronous, event-driven programming model can be used to build simple and efficient applications. We also learned about nvm and how to manage multiple versions of Node.js. Then, we studied npm and used external libraries in our Node.js applications. Finally, we learned what npm scripts are and some basic concepts related to them.

To help you understand what you learned about in this chapter, you can go to the npm repository, find some projects, and explore their code bases. The best way to learn about npm, Node.js, and the packages and libraries that exist out there is to explore other people's code and see what and how they are building and also what libraries they use.

In the next chapter, we will explore the Node.js APIs and learn how to use them to build a real web scraping application. In future chapters, you will learn how to use npm scripts and packages to improve the quality...