04-function.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Function</title>
  </head>
  <body>
    <button class="js-b-1">Click me</button>
    <button class="js-b-2">Click me</button>
    <ul id="ingredients"></ul>
    <script src="./app/04_function.js" type="module"></script>
  </body>
</html>