webpack/examples/dedupe/README.md

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jade, coffee, css, less, ... and your custom stuff.

# example.js

``` javascript
var a = require("./a");
var b = require("./b");
a.x !== b.x;
a.y !== b.y;
```

# a/index.js

``` javascript
module.exports = {
	x: require("./x"),
	y: require("./y"),
	z: require("../z")
}
```

# a/x.js

``` javascript
module.exports = {"this is": "x"};
```

# a/y.js

``` javascript
module.exports = {"this is": "y", "but in": "a"};
```

# b/index.js

``` javascript
module.exports = {
	x: require("./x"),
	y: require("./y"),
	z: require("../z")
}
```

# b/x.js

``` javascript
module.exports = {"this is": "x"};
```

# b/y.js

``` javascript
module.exports = {"this is": "y", "but in": "b"};
```

# z.js

``` javascript
module.exports = {"this is": "z"};
```

# js/output.js

``` javascript
/******/ (function(modules) { // webpackBootstrap
/******/ 	
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/ 	
/******/ 	// The require function
/******/ 	function __webpack_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(module.exports, module, module.exports, __webpack_require__);
/******/ 		
/******/ 		// Flag the module as loaded
/******/ 		module.loaded = true;
/******/ 		
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/ 	
/******/ 	
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/ 	
/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;
/******/ 	
/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "js/";
/******/ 	
/******/ 	
/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(0);
/******/ })
/************************************************************************/
/******/ ((function(modules) {
	// Check all modules for deduplicated modules
	for(var i in modules) {
		switch(typeof modules[i]) {
		case "number":
			// Module is a copy of another module
			modules[i] = modules[modules[i]];
			break;
		case "object":
			// Module can be created from a template
			modules[i] = (function(_m) {
				var args = _m.slice(1), fn = modules[_m[0]];
				return function (a,b,c) {
					fn.apply(null, [a,b,c].concat(args));
				};
			}(modules[i]));
		}
	}
	return modules;
}([
/* 0 */
/*!********************!*\
  !*** ./example.js ***!
  \********************/
/***/ function(module, exports, __webpack_require__) {

	var a = __webpack_require__(/*! ./a */ 2);
	var b = __webpack_require__(/*! ./b */ 5);
	a.x !== b.x;
	a.y !== b.y;

/***/ },
/* 1 */
/*!**************!*\
  !*** ./z.js ***!
  \**************/
/***/ function(module, exports, __webpack_require__) {

	module.exports = {"this is": "z"};

/***/ },
/* 2 */
[8, 3, 4],
/* 3 */
/*!****************!*\
  !*** ./a/x.js ***!
  \****************/
/***/ function(module, exports, __webpack_require__) {

	module.exports = {"this is": "x"};

/***/ },
/* 4 */
/*!****************!*\
  !*** ./a/y.js ***!
  \****************/
/***/ function(module, exports, __webpack_require__) {

	module.exports = {"this is": "y", "but in": "a"};

/***/ },
/* 5 */
[8, 6, 7],
/* 6 */
3,
/* 7 */
/*!****************!*\
  !*** ./b/y.js ***!
  \****************/
/***/ function(module, exports, __webpack_require__) {

	module.exports = {"this is": "y", "but in": "b"};

/***/ },
/* 8 */
/*!***********************************!*\
  !*** template of 2 referencing 1 ***!
  \***********************************/
/***/ function(module, exports, __webpack_require__, __webpack_module_template_argument_0__, __webpack_module_template_argument_1__) {

	module.exports = {
		x: __webpack_require__(__webpack_module_template_argument_0__),
		y: __webpack_require__(__webpack_module_template_argument_1__),
		z: __webpack_require__(/*! ../z */ 1)
	}

/***/ }
/******/ ])))
```

# Info

## Uncompressed

```
Hash: 668737aba027e3d941f2
Version: webpack 1.1.0
Time: 68ms
    Asset  Size  Chunks             Chunk Names
output.js  3475       0  [emitted]  main       
chunk    {0} output.js (main) 528 [rendered]
    > main [0] ./example.js 
    [0] ./example.js 76 {0} [built]
    [1] ./z.js 34 {0} [built]
        cjs require ../z [2] ./a/index.js 4:4-19
        cjs require ../z [5] ./b/index.js 4:4-19
    [2] ./a/index.js 84 {0} [built]
        cjs require ./a [0] ./example.js 1:8-22
    [3] ./a/x.js 34 {0} [built]
        cjs require ./x [2] ./a/index.js 2:4-18
    [4] ./a/y.js 49 {0} [built]
        cjs require ./y [2] ./a/index.js 3:4-18
    [5] ./b/index.js 84 {0} [built]
        cjs require ./b [0] ./example.js 2:8-22
    [6] ./b/x.js 34 {0} [built]
        cjs require ./x [5] ./b/index.js 2:4-18
    [7] ./b/y.js 49 {0} [built]
        cjs require ./y [5] ./b/index.js 3:4-18
    [8] template of 2 referencing 1 84 {0} [not cacheable] [built]
        template 1 [2] ./a/index.js
        template 1 [5] ./b/index.js
```

## Minimized (uglify-js, no zip)

```
Hash: bc390fa076c28e8dc72c
Version: webpack 1.1.0
Time: 151ms
    Asset  Size  Chunks             Chunk Names
output.js   724       0  [emitted]  main       
chunk    {0} output.js (main) 528 [rendered]
    > main [0] ./example.js 
    [0] ./example.js 76 {0} [built]
    [1] ./z.js 34 {0} [built]
        cjs require ../z [2] ./a/index.js 4:4-19
        cjs require ../z [5] ./b/index.js 4:4-19
    [2] ./a/index.js 84 {0} [built]
        cjs require ./a [0] ./example.js 1:8-22
    [3] ./a/x.js 34 {0} [built]
        cjs require ./x [2] ./a/index.js 2:4-18
    [4] ./a/y.js 49 {0} [built]
        cjs require ./y [2] ./a/index.js 3:4-18
    [5] ./b/index.js 84 {0} [built]
        cjs require ./b [0] ./example.js 2:8-22
    [6] ./b/x.js 34 {0} [built]
        cjs require ./x [5] ./b/index.js 2:4-18
    [7] ./b/y.js 49 {0} [built]
        cjs require ./y [5] ./b/index.js 3:4-18
    [8] template of 2 referencing 1 84 {0} [not cacheable] [built]
        template 1 [2] ./a/index.js
        template 1 [5] ./b/index.js
```