Rust Webassembly example

This is a cargo project for the following tutorial: https://www.hellorust.com/demos/add/

Preparation

Install nightly toolchain and wasm target:

rustup install nightly
rustup target add wasm32-unknown-unknown --toolchain nightly

Set default toolchain for current directory:

rustup override set nightly

cargo build

The output can be found in target/wasm32-unknown-unknown/debug/add.wasm.