WebAssembly

Code for the examples from the WebAssembly talk given at the Webmontag Meetup in Kassel.

Requirements

• Rust Installation (https://www.rust-lang.org/learn/get-started)
• Node.js installation (https://nodejs.org)
• Simple HTTP server installation (e.g. https://www.npmjs.com/package/http-server)
• WASM runtime installation (e.g. https://github.com/wasm3/wasm3)

Getting started

• Clone this repo.
• Open a Terminal at the position where you've cloned the repo.
• If not already done, install the Rust compiler's WASM target: rustup target add wasm32-unknown-unknown

Run the JS-API example

• Go to the js-api folder
• Run cargo build
• Run http-server
• In a browser open http://localhost:8080
• Output should be similar to this:

Run the wasm-pack web example

• Go to the wasm-pack folder
• If not already done, run cargo install wasm-pack
• Run wasm-pack build --target web
• Run http-server
• In a browser open http://localhost:8080
• Output should be similar to this:

Run the wasm-pack node.js example

• Go to the wasm-pack folder
• If not already done, run cargo install wasm-pack
• Run wasm-pack build --target nodejs
• Run node index.js
• Output should be similar to this:

Run the WASM runtime example

• Go to the js-api folder
• Run cargo build
• Run wasm3 --func factorial target/wasm32-unknown-unknown/debug/js_api.wasm 10
• Output should be similar to this: