🍈 Zettelkasten

Guide

Setup a project with Cargo

cargo new myproject

cd myproject
cargo build
We need wasm-bindgen and wasm-pack

cargo add wasm-bindgen

cargo install wasm-pack

Create a file src/lib.rs

use wasm_bindgen::prelude::*;
 
#[wasm_bindgen]
pub fn add(a : i32, b : i32) -> i32 {
    a+b
}

wasm-pack build --target web

The exported WASM Module should be in pkg/myfile.wasm, and JS files should be created for loading
Create a index.html with:

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>HTML 5 Boilerplate</title>
    <link rel="stylesheet" href="style.css">
  </head>
  <body >
    <script type="module">
      import init, {add} from "./pkg/hello_wasm.js"
      // setup glue code
      await init()
      console.log(add(1,2))
    </script>
  </body>
</html>

Run with Python HTTP Server

python -m http.server