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guide: Add a reference section for Promises and Futures

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Nick Fitzgerald
2018-08-13 15:44:28 -07:00
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guide/src/reference/js-promises-and-rust-futures.md Normal file
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# Converting Between JavaScript `Promise`s and Rust `Future`s
The `wasm-bindgen-futures` crate bridges the gap between JavaScript `Promise`s
and Rust `Future`s. Its `JsFuture` type provides conversion from a JavaScript
`Promise` into a Rust `Future`, and its `future_to_promise` function converts a
Rust `Future` into a JavaScript `Promise` and schedules it to be driven to
completion.
Learn more:
* [`wasm_bindgen_futures` on crates.io][crate]
* [`wasm-bindgen-futures` API documentation and example usage][docs]
[crate]: https://crates.io/crates/wasm-bindgen-futures
[docs]: https://rustwasm.github.io/wasm-bindgen/api/wasm_bindgen_futures/