Practical WebAssembly

WebAssembly brings consistent and maintainable performance into the JavaScript world. With this book, you’ll understand the building blocks of a WebAssembly module and various tools that make it easier to build, debug, and optimize WebAssembly modules. You’ll also learn why Rust makes it easier to build WebAssembly applications.

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Understand the basic building blocks of WebAssembly and learn, install, and use various tools from the Rust and WebAssembly ecosystem

Key Features

Understand the Rust programming language and WebAssembly concepts for web development
Build web, mobile, and embedded apps using WebAssembly
Enhance the scalability and resilience of your web apps

Book DescriptionRust is an open source language tuned toward safety, concurrency, and performance. WebAssembly brings all the capabilities of the native world into the JavaScript world. Together, Rust and WebAssembly provide a way to create robust and performant web applications. They help make your web applications blazingly fast and have small binaries. Developers working with JavaScript will be able to put their knowledge to work with this practical guide to developing faster and maintainable code.

Complete with step-by-step explanations of essential concepts, examples, and self-assessment questions, you’ll begin by exploring WebAssembly, using the various tools provided by the ecosystem, and understanding how to use WebAssembly and JavaScript together to build a high-performing application. You’ll then learn binary code to work with a variety of tools that help you to convert native code into WebAssembly. The book will introduce you to the world of Rust and the ecosystem that makes it easy to build/ship WebAssembly-based applications.

By the end of this WebAssembly Rust book, you’ll be able to create and ship your own WebAssembly applications using Rust and JavaScript, understand how to debug, and use the right tools to optimize and deliver high-performing applications.

What you will learn

Explore WebAssembly and the different tools available in the WebAssembly ecosystem
Understand the raw WebAssembly binary and the WebAssembly text format
Use the Web and JavaScript API with wasm-bindgen
Optimize Rust and WebAssembly for high performance
Run and debug WebAssembly and Rust code
Explore various tools available in the RustWASM ecosystem

Who this book is forThis book is for JavaScript developers who want to deliver better performance and ship type-safe code. Rust developers or backend engineers looking to build full-stack applications without worrying too much about JavaScript programming will also find the book useful.