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webpack

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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.

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# example.js ``` javascript var a = require("a"); require.ensure(["b"], function(require) { // a named chunk var c = require("c"); }, "my own chunk"); require.ensure(["b"], function(require) { // another chunk with the same name var d = require("d"); }, "my own chunk"); require.ensure([], function(require) { // the same again }, "my own chunk"); require.ensure(["b"], function(require) { // chunk without name var d = require("d"); }); ``` # js/output.js ``` javascript /******/ (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 = { /******/ 2:0 /******/ }; /******/ /******/ // 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; /******/ } /******/ /******/ // This file contains only the entry chunk. /******/ // The chunk loading function for additional chunks /******/ __webpack_require__.e = function requireEnsure(chunkId, callback) { /******/ // "0" is the signal for "already loaded" /******/ if(installedChunks[chunkId] === 0) /******/ return callback.call(null, __webpack_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 = __webpack_require__.p + "" + chunkId + ".output.js"; /******/ head.appendChild(script); /******/ } /******/ }; /******/ /******/ // 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/"; /******/ /******/ // install a JSONP callback for chunk loading /******/ var parentJsonpFunction = window["webpackJsonp"]; /******/ window["webpackJsonp"] = function webpackJsonpCallback(chunkIds, moreModules) { /******/ // add "moreModules" to the modules object, /******/ // then flag all "chunkIds" as loaded and fire callback /******/ var moduleId, chunkId, i = 0, callbacks = []; /******/ for(;i < chunkIds.length; i++) { /******/ chunkId = chunkIds[i]; /******/ if(installedChunks[chunkId]) /******/ callbacks.push.apply(callbacks, installedChunks[chunkId]); /******/ installedChunks[chunkId] = 0; /******/ } /******/ for(moduleId in moreModules) { /******/ modules[moduleId] = moreModules[moduleId]; /******/ } /******/ if(parentJsonpFunction) parentJsonpFunction(chunkIds, moreModules); /******/ while(callbacks.length) /******/ callbacks.shift().call(null, __webpack_require__); /******/ /******/ }; /******/ /******/ // Load entry module and return exports /******/ return __webpack_require__(0); /******/ }) /************************************************************************/ /******/ ([ /* 0 */ /*!********************!*\ !*** ./example.js ***! \********************/ /***/ function(module, exports, __webpack_require__) { var a = __webpack_require__(/*! a */ 3); __webpack_require__.e/*nsure*/(0, function(require) { // a named chunk var c = __webpack_require__(/*! c */ 4); }, /*! my own chunk */ 0); __webpack_require__.e/*nsure*/(0, function(require) { // another chunk with the same name var d = __webpack_require__(/*! d */ 2); }, /*! my own chunk */ 0); __webpack_require__.e/*nsure*/(0, function(require) { // the same again }, /*! my own chunk */ 0); __webpack_require__.e/*nsure*/(1, function(require) { // chunk without name var d = __webpack_require__(/*! d */ 2); }); /***/ }, /* 1 */, /* 2 */, /* 3 */ /*!****************!*\ !*** ./~/a.js ***! \****************/ /***/ function(module, exports, __webpack_require__) { // module a /***/ } /******/ ]) ``` # js/0.output.js ``` javascript webpackJsonp([0,1],[ /* 0 */, /* 1 */ /*!****************!*\ !*** ./~/b.js ***! \****************/ /***/ function(module, exports, __webpack_require__) { // module b /***/ }, /* 2 */ /*!****************!*\ !*** ./~/d.js ***! \****************/ /***/ function(module, exports, __webpack_require__) { // module d /***/ }, /* 3 */, /* 4 */ /*!****************!*\ !*** ./~/c.js ***! \****************/ /***/ function(module, exports, __webpack_require__) { // module c /***/ } ]) ``` # js/1.output.js ``` javascript webpackJsonp([1],[ /* 0 */, /* 1 */ /*!****************!*\ !*** ./~/b.js ***! \****************/ /***/ function(module, exports, __webpack_require__) { // module b /***/ }, /* 2 */ /*!****************!*\ !*** ./~/d.js ***! \****************/ /***/ function(module, exports, __webpack_require__) { // module d /***/ } ]) ``` # Info ## Uncompressed ``` Hash: 2eb88f7447c15bcee0b6 Version: webpack 1.1.0 Time: 94ms Asset Size Chunks Chunk Names 0.output.js 496 0, 1 [emitted] my own chunk 1.output.js 333 1 [emitted] output.js 4540 2 [emitted] main chunk {0} 0.output.js (my own chunk) 33 {2} [rendered] > my own chunk [0] ./example.js 3:0-6:18 > my own chunk [0] ./example.js 8:0-11:18 > my own chunk [0] ./example.js 13:0-15:18 [1] ./~/b.js 11 {0} {1} [built] require.ensure item b [0] ./example.js 3:0-6:18 require.ensure item b [0] ./example.js 8:0-11:18 require.ensure item b [0] ./example.js 17:0-20:2 [2] ./~/d.js 11 {0} {1} [built] cjs require d [0] ./example.js 10:9-21 cjs require d [0] ./example.js 19:9-21 [4] ./~/c.js 11 {0} [built] cjs require c [0] ./example.js 5:9-21 chunk {1} 1.output.js 22 {2} [rendered] > [0] ./example.js 17:0-20:2 [1] ./~/b.js 11 {0} {1} [built] require.ensure item b [0] ./example.js 3:0-6:18 require.ensure item b [0] ./example.js 8:0-11:18 require.ensure item b [0] ./example.js 17:0-20:2 [2] ./~/d.js 11 {0} {1} [built] cjs require d [0] ./example.js 10:9-21 cjs require d [0] ./example.js 19:9-21 chunk {2} output.js (main) 452 [rendered] > main [0] ./example.js [0] ./example.js 441 {2} [built] [3] ./~/a.js 11 {2} [built] cjs require a [0] ./example.js 1:8-20 ``` ## Minimized (uglify-js, no zip) ``` Hash: ce8f2578986b700b7792 Version: webpack 1.1.0 Time: 188ms Asset Size Chunks Chunk Names 0.output.js 63 0, 1 [emitted] my own chunk 1.output.js 47 1 [emitted] output.js 822 2 [emitted] main chunk {0} 0.output.js (my own chunk) 33 {2} [rendered] > my own chunk [0] ./example.js 3:0-6:18 > my own chunk [0] ./example.js 8:0-11:18 > my own chunk [0] ./example.js 13:0-15:18 [1] ./~/b.js 11 {0} {1} [built] require.ensure item b [0] ./example.js 3:0-6:18 require.ensure item b [0] ./example.js 8:0-11:18 require.ensure item b [0] ./example.js 17:0-20:2 [2] ./~/d.js 11 {0} {1} [built] cjs require d [0] ./example.js 10:9-21 cjs require d [0] ./example.js 19:9-21 [4] ./~/c.js 11 {0} [built] cjs require c [0] ./example.js 5:9-21 chunk {1} 1.output.js 22 {2} [rendered] > [0] ./example.js 17:0-20:2 [1] ./~/b.js 11 {0} {1} [built] require.ensure item b [0] ./example.js 3:0-6:18 require.ensure item b [0] ./example.js 8:0-11:18 require.ensure item b [0] ./example.js 17:0-20:2 [2] ./~/d.js 11 {0} {1} [built] cjs require d [0] ./example.js 10:9-21 cjs require d [0] ./example.js 19:9-21 chunk {2} output.js (main) 452 [rendered] > main [0] ./example.js [0] ./example.js 441 {2} [built] [3] ./~/a.js 11 {2} [built] cjs require a [0] ./example.js 1:8-20 WARNING in output.js from UglifyJs Dropping unused function argument require [./example.js:3,0] Side effects in initialization of unused variable c [./example.js:5,0] Dropping unused function argument require [./example.js:8,0] Side effects in initialization of unused variable d [./example.js:10,0] Dropping unused function argument require [./example.js:13,0] Dropping unused function argument require [./example.js:17,0] Side effects in initialization of unused variable d [./example.js:19,0] Side effects in initialization of unused variable a [./example.js:1,0] ```