Sharing Classes from Rust with JavaScript

wasm-bindgen enables sharing classes from JavaScript with Rust and vice versa using simple annotations. It handles all the boilerplate stuff, such as translating a value from JavaScript to WebAssembly or WebAssembly to JavaScript, as well as complex memory manipulations and error-prone pointer arithmetic. Thus, wasm-bindgen makes everything easier.

Getting started with the project

Let’s see how easy it is to share classes between JavaScript and WebAssembly (from Rust):

1. Create a new project:

2. Define the wasm-bindgen dependency for the project. Open the cargo.toml file and add the following content: