webpack/examples/code-splitting-bundle-loader/README.md

example.js

require("bundle!./file.js")(function(fileJsExports) {
	console.log(fileJsExports);
});

file.js

module.exports = "It works";

js/output.js

(function(modules) { // webpackBootstrap
// The module cache
var installedModules = {};

// object to store loaded and loading chunks
// "0" means "already loaded"
// Array means "loading", array contains callbacks
var installedChunks = {0:0};

// The require function
function require(moduleId) {
	// Check if module is in cache
	if(installedModules[moduleId])
		return installedModules[moduleId].exports;
	
	// Create a new module (and put it into the cache)
	var module = installedModules[moduleId] = {
		exports: {},
		id: moduleId,
		loaded: false
	};
	
	// Execute the module function
	modules[moduleId].call(null, module, module.exports, require);
	
	// Flag the module as loaded
	module.loaded = true;
	
	// Return the exports of the module
	return module.exports;
}

require.e = function requireEnsure(chunkId, callback) {
	// "0" is the signal for "already loaded"
	if(installedChunks[chunkId] === 0)
		return callback.call(null, require);
	
	// an array means "currently loading".
	if(installedChunks[chunkId] !== undefined) {
		installedChunks[chunkId].push(callback);
	} else {
		// start chunk loading
		installedChunks[chunkId] = [callback];
		var head = document.getElementsByTagName('head')[0];
		var script = document.createElement('script');
		script.type = 'text/javascript';
		script.charset = 'utf-8';
		script.src = modules.c + "" + chunkId + ".output.js";
		head.appendChild(script);
	}
};
require.modules = modules;
require.cache = installedModules;

// install a JSONP callback for chunk loading
window["webpackJsonp"] = function webpackJsonpCallback(chunkIds, moreModules) {
	// add "moreModules" to the modules object,
	// then flag all "chunkIds" as loaded and fire callback
	var moduleId, chunkId, callbacks = [];
	while(chunkIds.length) {
		chunkId = chunkIds.shift();
		if(installedChunks[chunkId])
			callbacks.push.apply(callbacks, installedChunks[chunkId]);
		installedChunks[chunkId] = 0;
	}
	for(moduleId in moreModules)
		modules[moduleId] = moreModules[moduleId];
	while(callbacks.length)
		callbacks.shift().call(null, require);
};

// Load entry module and return exports
return require(0);
})
/************************************************************************/
({
// __webpack_public_path__

c: "",
/***/ 0:
/*!********************!*\
  !*** ./example.js ***!
  \********************/
/***/ function(module, exports, require) {

require(/*! bundle!./file.js */ 1)(function(fileJsExports) {
	console.log(fileJsExports);
});

/***/ },

/***/ 1:
/*!************************************************************************************!*\
  !*** (webpack)/~/bundle-loader!./file.js ***!
  \************************************************************************************/
/***/ function(module, exports, require) {

var cbs = [], 
	data;
module.exports = function(cb) {
	if(cbs) cbs.push(cb);
	else cb(data);
}
require.e/*nsure*/(1, function(require) {
	data = require(/*! !./file.js */ 2);
	var callbacks = cbs;
	cbs = null;
	for(var i = 0, l = callbacks.length; i < l; i++) {
		callbacks[i](data);
	}
});

/***/ }
})

js/1.output.js

webpackJsonp([1],
{

/***/ 2:
/*!*****************!*\
  !*** ./file.js ***!
  \*****************/
/***/ function(module, exports, require) {

module.exports = "It works";

/***/ }

}
)

Info

Uncompressed

Hash: d75e46ac811b482356205a47ab1dc1c0
Version: webpack 0.10.0-beta1
Time: 67ms
      Asset  Size  Chunks  Chunk Names
  output.js  3109       0  main       
1.output.js   184       1             
chunk    {0} output.js (main) 486
    [0] ./example.js 88 [built] {0}
    [1] (webpack)/~/bundle-loader!./file.js 398 [built] {0}
        cjs require bundle!./file.js [0] ./example.js 1:0-27
chunk    {1} 1.output.js 28 {0} 
    [2] ./file.js 28 [built] {1}
        cjs require !!.\file.js [1] (webpack)/~/bundle-loader!./file.js 8:8-147

Minimized (uglify-js, no zip)

Hash: d75e46ac811b482356205a47ab1dc1c0
Version: webpack 0.10.0-beta1
Time: 155ms
      Asset  Size  Chunks  Chunk Names
  output.js   853       0  main       
1.output.js    56       1             
chunk    {0} output.js (main) 486
    [0] ./example.js 88 [built] {0}
    [1] (webpack)/~/bundle-loader!./file.js 398 [built] {0}
        cjs require bundle!./file.js [0] ./example.js 1:0-27
chunk    {1} 1.output.js 28 {0} 
    [2] ./file.js 28 [built] {1}
        cjs require !!.\file.js [1] (webpack)/~/bundle-loader!./file.js 8:8-147