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66 lines
2.0 KiB
Markdown
66 lines
2.0 KiB
Markdown
<meta charset="utf-8"/>
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# `wasm-bindgen`
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**Facilitating high-level interactions between wasm modules and JavaScript.**
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[](https://travis-ci.org/rustwasm/wasm-bindgen)
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[](https://ci.appveyor.com/project/alexcrichton/wasm-bindgen)
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[](https://crates.io/crates/wasm-bindgen)
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[](https://crates.io/crates/wasm-bindgen)
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[](https://docs.rs/wasm-bindgen)
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Import JavaScript things into Rust and export Rust things to JavaScript.
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```rust
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extern crate wasm_bindgen;
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use wasm_bindgen::prelude::*;
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// Import the `window.alert` function from the Web.
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#[wasm_bindgen]
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extern {
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fn alert(s: &str);
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}
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// Export a `greet` function from Rust to JavaScript, that alerts a
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// hello message.
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#[wasm_bindgen]
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pub fn greet(name: &str) {
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alert(&format!("Hello, {}!", name));
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}
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```
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Use exported Rust things from JavaScript with ECMAScript modules!
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```js
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import { greet } from "./hello_world";
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greet("World!");
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```
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## Guide
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[📚 Read the `wasm-bindgen` guide here! 📚](https://rustwasm.github.io/wasm-bindgen)
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## License
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This project is licensed under either of
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* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
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http://www.apache.org/licenses/LICENSE-2.0)
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* MIT license ([LICENSE-MIT](LICENSE-MIT) or
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http://opensource.org/licenses/MIT)
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at your option.
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## Contribution
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**[See the "Contributing" section of the guide for information on
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hacking on `wasm-bindgen`!][contributing]**
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Unless you explicitly state otherwise, any contribution intentionally submitted
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for inclusion in this project by you, as defined in the Apache-2.0 license,
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shall be dual licensed as above, without any additional terms or conditions.
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[contributing]: https://rustwasm.github.io/wasm-bindgen/contributing.html
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