mkdir SampleApp && cd $_ npm i webpack -g
npm i http-server -gopen VSCode next ! and press 'tab' key
add <script src="build.js"></script> under 'body' tag
(index.html)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<script src="bundle.js"></script>
</body>
</html>(src/main.js)
console.log('hello');webpack src/main.js bin/bundle.js
http-server -p 9000