DanielRapp/index.html

## index.html
<html>
<body>
<script type="module">

const res = await fetch('main.wasm');
const buffer = await res.arrayBuffer();
const compiled = await WebAssembly.compile(buffer);
const memory = new WebAssembly.Memory({ initial: 256, maximum: 256 });
const prog = new WebAssembly.Instance(compiled, {env: { memory }});
const wasm_func = prog.exports.double;

console.log( wasm_func(4) );

</script>
</body>
</html>

## main.c

// emcc main.c -s WASM=1 -s SIDE_MODULE=1 -O1 -o main.wasm

int double(int x) {
  return 2 * x;
}
	<html>
	<body>
	<script type="module">

	const res = await fetch('main.wasm');
	const buffer = await res.arrayBuffer();
	const compiled = await WebAssembly.compile(buffer);
	const memory = new WebAssembly.Memory({ initial: 256, maximum: 256 });
	const prog = new WebAssembly.Instance(compiled, {env: { memory }});
	const wasm_func = prog.exports.double;

	console.log( wasm_func(4) );

	</script>
	</body>
	</html>

	// emcc main.c -s WASM=1 -s SIDE_MODULE=1 -O1 -o main.wasm

	int double(int x) {
	return 2 * x;
	}