example.js

console.log(require("./cup1.coffee"));

cup1.coffee

module.exports =
	cool: "stuff"
	answer: 42
	external: require "./cup2.coffee"
	again: require "./cup2.coffee"

cup2.coffee

console.log "yeah coffee-script"

module.exports = 42

js/output.js

/******/(function(modules) {
/******/	var installedModules = {};
/******/	function require(moduleId) {
/******/		if(typeof moduleId !== "number") throw new Error("Cannot find module '"+moduleId+"'");
/******/		if(installedModules[moduleId])
/******/			return installedModules[moduleId].exports;
/******/		var module = installedModules[moduleId] = {
/******/			exports: {},
/******/			id: moduleId,
/******/			loaded: false
/******/		};
/******/		modules[moduleId](module, module.exports, require);
/******/		module.loaded = true;
/******/		return module.exports;
/******/	}
/******/	require.e = function(chunkId, callback) {
/******/		callback(require);
/******/	};
/******/	require.modules = modules;
/******/	require.cache = installedModules;
/******/	return require(0);
/******/})
/******/({c:"",
/******/0: function(module, exports, require) {

/**! .\example.js !**/

/******/ /* WEBPACK FREE VAR INJECTION */ (function(console) {
console.log(require(/*! ./cup1.coffee */3));
/******/ /* WEBPACK FREE VAR INJECTION */ }(require(/*! __webpack_console */1)))

/******/},
/******/
/******/1: function(module, exports, require) {

/**! (webpack)\buildin\__webpack_console.js !**/

var console = (function() { return this["console"] || (this["window"] && this["window"].console) || {} }());
module.exports = console;
for(var name in {log:1, info:1, error:1, warn:1, dir:1, trace:1, assert:1})
	if(!console[name])
		console[name] = function() {};
var times = {};
if(!console.time)
console.time = function(label) {
	times[label] = Date.now();
};
if(!console.timeEnd)
console.timeEnd = function() {
	var duration = Date.now() - times[label];
	console.log('%s: %dms', label, duration);
};

/******/},
/******/
/******/2: function(module, exports, require) {

/**! (webpack)\~\coffee-loader!.\cup2.coffee !**/

/******/ /* WEBPACK FREE VAR INJECTION */ (function(console) {
(function() {

  console.log("yeah coffee-script");

  module.exports = 42;

}).call(this);

/******/ /* WEBPACK FREE VAR INJECTION */ }(require(/*! __webpack_console */1)))

/******/},
/******/
/******/3: function(module, exports, require) {

/**! (webpack)\~\coffee-loader!.\cup1.coffee !**/

(function() {

  module.exports = {
    cool: "stuff",
    answer: 42,
    external: require(/*! ./cup2.coffee */2),
    again: require(/*! ./cup2.coffee */2)
  };

}).call(this);


/******/}
/******/})

Info

Uncompressed

Hash: 9dcd6efedf6b645ea544a56aa1edd41e
Compile Time: 141ms
Chunks: 1
Modules: 4
Modules including duplicates: 4
Modules first chunk: 4
main   output.js:     2366 chars/bytes

 <id>    <size>  <filename>
       <reason> from <filename>
output.js
    0        44  .\example.js
       main
    1       502  (webpack)\buildin\__webpack_console.js
       require (1x) from .\example.js
       require (1x) from .\cup2.coffee
    2        92  (webpack)\~\coffee-loader!.\cup2.coffee
       require (2x) from .\cup1.coffee
    3       180  (webpack)\~\coffee-loader!.\cup1.coffee
       require (1x) from .\example.js

Minimized (uglify-js, no zip)

Hash: f87b323b005d7bd0a92f3f7cde2344aa
Compile Time: 328ms
Chunks: 1
Modules: 4
Modules including duplicates: 4
Modules first chunk: 4
main   output.js:      884 chars/bytes

 <id>    <size>  <filename>
       <reason> from <filename>
output.js
    0        24  .\example.js
       main
    1       403  (webpack)\buildin\__webpack_console.js
       require (1x) from .\example.js
       require (1x) from .\cup2.coffee
    2        77  (webpack)\~\coffee-loader!.\cup2.coffee
       require (2x) from .\cup1.coffee
    3       102  (webpack)\~\coffee-loader!.\cup1.coffee
       require (1x) from .\example.js