<!DOCTYPE html>
<html>
    <head></head>
    <body>
        <script>
         // This is read and used by `app.js`
         var Module = {
             onRuntimeInitialized: main
         }
         function main() {
             let rust_pow = Module.cwrap('rust_pow', 'number', ['number', 'number']);
             console.log(rust_pow(2, 3));

             let draw = Module.cwrap('draw', null, ['string']);
             draw("#canvas");

             Module.ccall('hello', 'null', []);
         }
        </sc