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wasm-bindgen/examples/README.md
Alex Crichton dadcff15ef Add an example of wasm2asm and wasm-bindgen 
This commit adds an example of executing the `wasm2asm` tool to generate asm.js
output instead of WebAssembly. This is often useful when supporting older
browsers, such as IE 11, that doesn't have native support for WebAssembly.
2018-04-30 13:29:34 -07:00

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Examples

This directory contains a number of examples of the #[wasm_bindgen] macro and how to display them in the browser. Each directory contains a README with a link to https://webassembly.studio so you can also explore the example online (apologies if they're out of sync!), and each directory also contains a build.sh which assembles all the relevant files locally. If you open up index.html in a web browser you should be able to see everything in action when using build.sh!

The examples here are:

  • hello_world - the "hello world" of #[wasm_bindgen], aka throwing up a dialog greeting you
  • console_log - a showcase of #[wasm_bindgen] importing classes and how to bind console.log
  • math - like console_log except showing how to import Math-related functions instead
  • dom - an example of accessing the global document object and appending HTML to it
  • smorgasboard - a bunch of features all thrown into one, showing off the various capabilities of the #[wasm_bindgen] macro and what you can do with it from JS
  • performance - how to import APIs like performance.now() and time various operations in Rust
  • wasm-in-wasm - how to interact with namespaced APIs like WebAssembly.Module and shows off creation of a WebAssembly module from Rust
  • closures - an example of how to invoke functions like setInterval or use the onclick property in conjunction with closures.
  • no_modules - an example of how to use the --no-modules flag to the wasm-bindgen CLI tool
  • add - an example of generating a tiny wasm binary, one that only adds two numbers.
  • asm.js - an example of using the wasm2asm tool from binaryen to convert the generated WebAssembly to normal JS