Book Image

Hands-On JavaScript High Performance

By : Justin Scherer
1 (1)
Book Image

Hands-On JavaScript High Performance

1 (1)
By: Justin Scherer

Overview of this book

High-performance web development is all about cutting through the complexities in different layers of a web app and building services and APIs that improve the speed and performance of your apps on the browser. With emerging web technologies, building scalable websites and sustainable web apps is smoother than ever. This book starts by taking you through the web frontend, popular web development practices, and the latest version of ES and JavaScript. You'll work with Node.js and learn how to build web apps without a framework. The book consists of three hands-on examples that help you understand JavaScript applications at both the server-side and the client-side using Node.js and Svelte.js. Each chapter covers modern techniques such as DOM manipulation and V8 engine optimization to strengthen your understanding of the web. Finally, you’ll delve into advanced topics such as CI/CD and how you can harness their capabilities to speed up your web development dramatically. By the end of this web development book, you'll have understood how the JavaScript landscape has evolved, not just for the frontend but also for the backend, and be ready to use new tools and techniques to solve common web problems.
Table of Contents (15 chapters)

Tools for High Performance on the Web

JavaScript has become the mainstay language of the web. There is no extra runtime needed, and there is no compilation process required to run an application in JavaScript. Any user can open up a web browser and start typing in the console to learn the language. In addition to this, there have been many advancements in the language along with the Document Object Model (DOM). All of this has led to a rich environment for developers to take and create.

On top of this, we can see the web as a build once, deploy anywhere environment. The code that works on one operating system will work on another. There is some variation that will need to happen if we want to target all browsers, but it can be seen as a develop once, deploy anywhere platform. However, all of this has led to applications that have become bloated, with expensive frameworks and unnecessary...