Multi-line strings in JavaScript and Node.js - http://tomasz.janczuk.org/2013/05/multi-line-strings-in-javascript-and.html?m=1
var html = (function () {/*
<!DOCTYPE html>
<html>
<body>
<h1>Hello, world!</h1>
</body>
</html>
*/}).toString().match(/[^]*\/\*([^]*)\*\/\}$/)[1];