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<div align="center"> <h1><code>wasm-bindgen</code></h1> <p> <strong>Facilitating high-level interactions between Wasm modules and JavaScript.</strong> </p> <p> <a href="https://dev.azure.com/rustwasm/wasm-bindgen/_build/latest?definitionId=1&branchName=master"><img src="https://img.shields.io/azure-devops/build/rustwasm/wasm-bindgen/1.svg?style=flat-square" alt="Build Status" /></a> <a href="https://crates.io/crates/wasm-bindgen"><img src="https://img.shields.io/crates/v/wasm-bindgen.svg?style=flat-square" alt="Crates.io version" /></a> <a href="https://crates.io/crates/wasm-bindgen"><img src="https://img.shields.io/crates/d/wasm-bindgen.svg?style=flat-square" alt="Download" /></a> <a href="https://docs.rs/wasm-bindgen"><img src="https://img.shields.io/badge/docs-latest-blue.svg?style=flat-square" alt="docs.rs docs" /></a> </p> <h3> <a href="https://rustwasm.github.io/docs/wasm-bindgen/">Guide</a> <span> | </span> <a href="https://docs.rs/wasm-bindgen">API Docs</a> <span> | </span> <a href="https://github.com/rustwasm/wasm-bindgen/blob/master/CONTRIBUTING.md">Contributing</a> <span> | </span> <a href="https://discord.gg/xMZ7CCY">Chat</a> </h3>

<sub>Built with 🦀🕸 by <a href="https://rustwasm.github.io/">The Rust and WebAssembly Working Group</a></sub>

</div>

Example

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

use wasm_bindgen::prelude::*;

// Import the `window.alert` function from the Web.
#[wasm_bindgen]
extern "C" {
    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 with ECMAScript modules!

import { greet } from "./hello_world";

greet("World!");

Features

Guide

📚 Read the wasm-bindgen guide here! 📚

You can find general documentation about using Rust and WebAssembly together here.

API Docs

License

This project is licensed under either of

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.