webpack/examples/code-splitted-require.context/README.md

example.js

function getTemplate(templateName, callback) {
	require.ensure([], function(require) {
		callback(require("../require.context/templates/"+templateName)());
	});
}
getTemplate("a", function(a) {
	console.log(a);
});
getTemplate("b", function(b) {
	console.log(b);
});

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) {

function getTemplate(templateName, callback) {
	require.e/*nsure*/(1, function(require) {
		callback(require(/*! ../require.context/templates */ 1)("./"+templateName)());
	});
}
getTemplate("a", function(a) {
	console.log(a);
});
getTemplate("b", function(b) {
	console.log(b);
});

/***/ }
})

js/1.output.js

webpackJsonp([1],
{

/***/ 1:
/*!*********************************************!*\
  !*** ../require.context/templates ^\.\/.*$ ***!
  \*********************************************/
/***/ function(module, exports, require) {

var map = {
	"./a": 2,
	"./a.js": 2,
	"./b": 3,
	"./b.js": 3,
	"./c": 4,
	"./c.js": 4
};
function webpackContext(req) {
	return require(webpackContextResolve(req));
};
function webpackContextResolve(req) {
	return map[req] || (function() { throw new Error("Cannot find module '" + req + "'.") }());
};
webpackContext.keys = function webpackContextKeys() {
	return Object.keys(map);
};
webpackContext.resolve = webpackContextResolve;
module.exports = webpackContext;


/***/ },

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

module.exports = function() {
	return "This text was generated by template A";
}

/***/ },

/***/ 3:
/*!*****************************************!*\
  !*** ../require.context/templates/b.js ***!
  \*****************************************/
/***/ function(module, exports, require) {

module.exports = function() {
	return "This text was generated by template B";
}

/***/ },

/***/ 4:
/*!*****************************************!*\
  !*** ../require.context/templates/c.js ***!
  \*****************************************/
/***/ function(module, exports, require) {

module.exports = function() {
	return "This text was generated by template C";
}

/***/ }

}
)

Info

Uncompressed

Hash: bfc8a0c89870057a328ac4537518a669
Version: webpack 0.10.0-beta1
Time: 52ms
      Asset  Size  Chunks  Chunk Names
  output.js  2681       0  main       
1.output.js  1567       1             
chunk    {0} output.js (main) 276
    [0] ./example.js 276 [built] {0}
chunk    {1} 1.output.js 463 {0} 
    [1] ../require.context/templates ^\.\/.*$ 217 [built] {1}
        cjs require context ../require.context/templates [0] ./example.js 3:11-64
    [2] ../require.context/templates/a.js 82 [built] {1}
        context element ./a [1] ../require.context/templates ^\.\/.*$
        context element ./a.js [1] ../require.context/templates ^\.\/.*$
    [3] ../require.context/templates/b.js 82 [built] {1}
        context element ./b [1] ../require.context/templates ^\.\/.*$
        context element ./b.js [1] ../require.context/templates ^\.\/.*$
    [4] ../require.context/templates/c.js 82 [built] {1}
        context element ./c [1] ../require.context/templates ^\.\/.*$
        context element ./c.js [1] ../require.context/templates ^\.\/.*$

Minimized (uglify-js, no zip)

Hash: bfc8a0c89870057a328ac4537518a669
Version: webpack 0.10.0-beta1
Time: 163ms
      Asset  Size  Chunks  Chunk Names
  output.js   792       0  main       
1.output.js   531       1             
chunk    {0} output.js (main) 276
    [0] ./example.js 276 [built] {0}
chunk    {1} 1.output.js 463 {0} 
    [1] ../require.context/templates ^\.\/.*$ 217 [built] {1}
        cjs require context ../require.context/templates [0] ./example.js 3:11-64
    [2] ../require.context/templates/a.js 82 [built] {1}
        context element ./a [1] ../require.context/templates ^\.\/.*$
        context element ./a.js [1] ../require.context/templates ^\.\/.*$
    [3] ../require.context/templates/b.js 82 [built] {1}
        context element ./b [1] ../require.context/templates ^\.\/.*$
        context element ./b.js [1] ../require.context/templates ^\.\/.*$
    [4] ../require.context/templates/c.js 82 [built] {1}
        context element ./c [1] ../require.context/templates ^\.\/.*$
        context element ./c.js [1] ../require.context/templates ^\.\/.*$