Book Image

Practical WebAssembly

By : Sendil Kumar Nellaiyapen
Book Image

Practical WebAssembly

By: Sendil Kumar Nellaiyapen

Overview of this book

Rust 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.
Table of Contents (15 chapters)
Section 1: Introduction to WebAssembly
Section 2: WebAssembly Tools
Section 3: Rust and WebAssembly

Introducing wasm-pack

To be compatible with JavaScript, Rust-based WebAssembly applications should be completely interoperable with the JavaScript world. Without that, it will be difficult for developers to bootstrap their WebAssembly projects in JavaScript.

The node modules completely changed the perspective of the JavaScript world. They make it easier to develop and share the modules between Browser and Node environments. Developers around the world can use these libraries wherever and whenever they want.

The wasm-pack tool seeks to be a one-stop shop for building and working with Rust-generated WebAssembly that you would like to interoperate with JavaScript, in the browser or with Node.js. - wasm-pack website.

Why do you need wasm-pack?

wasm-pack makes it easy to build and pack Rust- and WebAssembly-based projects. Once packed, the module is ready to be shared with the world via the npm registry – just like millions (or even...