wasm-bindgen

Facilitating high-level interactions between wasm modules and JavaScript.

Introduction blog post: "JavaScript to Rust and Back Again: A wasm-bindgen Tale"

Import JavaScript things into Rust and export Rust things to JavaScript.

src/lib.rs:

```rust

![feature(useexternmacros)]

extern crate wasmbindgen; use wasmbindgen::prelude::*;

// Import the window.alert function from the Web.

[wasm_bindgen]

extern { fn alert(s: &str); }

// Export a greet function from Rust to JavaScript, that alerts a // hello message.

[wasm_bindgen]

pub fn greet(name: &str) { alert(&format!("Hello, {}!", name)); } ```

Use exported Rust things from JavaScript!

index.js:

js // Asynchronously load, compile, and import the Rust's WebAssembly // and JavaScript interface. import("./hello_world").then(module => { // Alert "Hello, World!" module.greet("World!"); });

Guide

📚 Read the wasm-bindgen guide here! 📚

License

This project is licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

See the "Contributing" section of the guide for information on hacking on wasm-bindgen!

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this project by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.