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)

Writing C/C++ for the web

So far, we have taken a look at writing the low-level instruction language of WebAssembly. While this can be a fun exercise to take on, most of our projects will be much grander in scale and we will want to utilize a high-level language to accomplish our goals. While there are languages out there that will compile to WebAssembly that are similar to JavaScript (https://github.com/AssemblyScript/assemblyscript), a good chunk of modules will be written while utilizing system languages such as C, C++, or Rust. In this section, we will take a look at writing C/C++ code for the browser.

The Rust language (https://www.rust-lang.org/) provides us with a safer alternative to C/C++. While utilizing it may be better in the long run, we are going to stick with C/C++ since this is what we will widely compile to WebAssembly for the foreseeable future since most programs...