웹팩은 다양한 기능을 제공한다
npm install webpack webpack-cli react react-dom
npx webpack
<html>
<head>
<script src="js01.js"></script>
<script src="js02.js"></script>
<script src="js03.js"></script>
<!-- ... -->
<script src="js0999.js"></script>
</head>
</html>
<html>
<head>
<script src="dist/app.js"></script>
</head>
</html>