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

Exploring other options in emsdk

emsdk is a single-stop shop for installing, maintaining, and managing all the tools and toolchains required for using Emscripten. emsdk makes it easier to bootstrap the environment, upgrade to the latest versions, switch to various versions, change or configure various tools, and so on.

The emsdk command is available inside the emsdk folder. Go to the emsdk folder and run the emsdk command.


For all the commands in this chapter, for *nix systems, use ./emsdk, and for Windows, use emsdk.

To find the various options available in the emsdk command, run the following command:

$ ./emsdk --help
emsdk: Available commands:
emsdk list [--old] [--uses] - To list down the tools
emsdk update - To update the emsdk to the latest version.
emsdk update-tags - To fetch the latest tags from the GitHub 
emsdk install - To install the tools and SDK.
emsdk uninstall - To uninstall the tools and SDK installed