Contents

# web-sys: Closures

[View full source code][code] or [view the compiled example online][online]

[online]: https://rustwasm.github.io/wasm-bindgen/exbuild/closures/
[code]: https://github.com/rustwasm/wasm-bindgen/tree/master/examples/closures

One of the features of `#[wasm_bindgen]` is that you can pass closures defined
in Rust off to JS. This can be a bit tricky at times, though, so the example
here shows how to interact with some standard web APIs with closures.

## `src/lib.rs`

```rust
{{#include ../../../examples/closures/src/lib.rs}}
```

Version data entries

30 entries across 30 versions & 1 rubygems

Version	Path
wasmtime-23.0.2	./ext/cargo-vendor/wasm-bindgen-0.2.89/guide/src/examples/closures.md
wasmtime-22.0.0	./ext/cargo-vendor/wasm-bindgen-0.2.89/guide/src/examples/closures.md
wasmtime-21.0.1	./ext/cargo-vendor/wasm-bindgen-0.2.89/guide/src/examples/closures.md
wasmtime-20.0.2	./ext/cargo-vendor/wasm-bindgen-0.2.89/guide/src/examples/closures.md
wasmtime-20.0.0	./ext/cargo-vendor/wasm-bindgen-0.2.89/guide/src/examples/closures.md
wasmtime-18.0.3	./ext/cargo-vendor/wasm-bindgen-0.2.89/guide/src/examples/closures.md
wasmtime-17.0.1	./ext/cargo-vendor/wasm-bindgen-0.2.89/guide/src/examples/closures.md
wasmtime-17.0.0	./ext/cargo-vendor/wasm-bindgen-0.2.89/guide/src/examples/closures.md
wasmtime-16.0.0	./ext/cargo-vendor/wasm-bindgen-0.2.89/guide/src/examples/closures.md
wasmtime-15.0.1	./ext/cargo-vendor/wasm-bindgen-0.2.89/guide/src/examples/closures.md
wasmtime-15.0.0	./ext/cargo-vendor/wasm-bindgen-0.2.89/guide/src/examples/closures.md
wasmtime-14.0.4	./ext/cargo-vendor/wasm-bindgen-0.2.87/guide/src/examples/closures.md
wasmtime-14.0.3	./ext/cargo-vendor/wasm-bindgen-0.2.87/guide/src/examples/closures.md
wasmtime-14.0.1	./ext/cargo-vendor/wasm-bindgen-0.2.87/guide/src/examples/closures.md
wasmtime-14.0.0	./ext/cargo-vendor/wasm-bindgen-0.2.87/guide/src/examples/closures.md
wasmtime-13.0.0	./ext/cargo-vendor/wasm-bindgen-0.2.87/guide/src/examples/closures.md
wasmtime-12.0.1	./ext/cargo-vendor/wasm-bindgen-0.2.87/guide/src/examples/closures.md
wasmtime-12.0.0	./ext/cargo-vendor/wasm-bindgen-0.2.87/guide/src/examples/closures.md
wasmtime-11.0.0	./ext/cargo-vendor/wasm-bindgen-0.2.87/guide/src/examples/closures.md
wasmtime-10.0.1	./ext/cargo-vendor/wasm-bindgen-0.2.87/guide/src/examples/closures.md