mirror of https://github.com/webpack/webpack.git
13 KiB
13 KiB
This example shows automatically created async commons chunks.
The example entry references two chunks:
- entry chunk
- async require -> chunk X
- async require -> chunk Y
- chunk X
- module
a - module
b - module
c
- module
- chunk Y
- module
a - module
b - module
d
- module
These chunks share modules a and b. The optimization extract these into chunk Z:
Note: Actually the optimization compare size of chunk Z to some minimum value, but this is disabled from this example. In practice there is no configuration needed for this.
- entry chunk
- async require -> chunk X & Z
- async require -> chunk Y & Z
- chunk X
- module
c
- module
- chunk Y
- module
d
- module
- chunk Z
- module
a - module
b
- module
Pretty useful for a router in a SPA.
example.js
// a chunks with a, b, c
require(["./a", "./b", "./c"]);
// a chunk with a, b, d
require.ensure(["./a"], function(require) {
require("./b");
require("./d");
});
dist/output.js
/******/ (function(modules) { /* webpackBootstrap */ })
/******/ (function(modules, runtime) { // webpackBootstrap
/******/ "use strict";
/******/ // 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] = {
/******/ i: moduleId,
/******/ l: false,
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Flag the module as loaded
/******/ module.l = true;
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/
/******/ // initialize runtime
/******/ runtime(__webpack_require__);
/******/
/******/ // Load entry module and return exports
/******/ return __webpack_require__(0);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/*!********************!*\
!*** ./example.js ***!
\********************/
/*! no static exports found */
/*! runtime requirements: __webpack_require__.e, __webpack_require__.oe, __webpack_require__ */
/***/ (function(__unusedmodule, __unusedexports, __webpack_require__) {
// a chunks with a, b, c
Promise.all(/*! AMD require */[__webpack_require__.e(324), __webpack_require__.e(911)]).then(function() {[__webpack_require__(/*! ./a */ 1), __webpack_require__(/*! ./b */ 2), __webpack_require__(/*! ./c */ 3)];}).catch(__webpack_require__.oe);
// a chunk with a, b, d
Promise.all(/*! require.ensure */[__webpack_require__.e(324), __webpack_require__.e(85)]).then((function(require) {
__webpack_require__(/*! ./b */ 2);
__webpack_require__(/*! ./d */ 4);
}).bind(null, __webpack_require__)).catch(__webpack_require__.oe);
/***/ })
/******/ ],
function(__webpack_require__) { /* webpackRuntimeModules */ });
/******/ function(__webpack_require__) { // webpackRuntimeModules
/******/ "use strict";
/******/
/******/ /* webpack/runtime/ensure chunk */
/******/ !function() {
/******/ __webpack_require__.f = {};
/******/ // This file contains only the entry chunk.
/******/ // The chunk loading function for additional chunks
/******/ __webpack_require__.e = function requireEnsure(chunkId) {
/******/ return Promise.all(Object.keys(__webpack_require__.f).reduce(function(promises, key) { __webpack_require__.f[key](chunkId, promises); return promises; }, []));
/******/ };
/******/ }();
/******/
/******/ /* webpack/runtime/publicPath */
/******/ !function() {
/******/ __webpack_require__.p = "dist/";
/******/ }();
/******/
/******/ /* webpack/runtime/get javascript chunk filename */
/******/ !function() {
/******/ __webpack_require__.u = function(chunkId) {
/******/ return "" + chunkId + ".output.js";
/******/ };
/******/ }();
/******/
/******/ /* webpack/runtime/jsonp chunk loading */
/******/ !function() {
/******/
/******/
/******/ // object to store loaded and loading chunks
/******/ // undefined = chunk not loaded, null = chunk preloaded/prefetched
/******/ // Promise = chunk loading, 0 = chunk loaded
/******/ var installedChunks = {
/******/ 404: 0
/******/ };
/******/
/******/
/******/
/******/ __webpack_require__.f.j = function(chunkId, promises) {
/******/ // JSONP chunk loading for javascript
/******/ var installedChunkData = installedChunks[chunkId];
/******/ if(installedChunkData !== 0) { // 0 means "already installed".
/******/
/******/ // a Promise means "currently loading".
/******/ if(installedChunkData) {
/******/ promises.push(installedChunkData[2]);
/******/ } else {
/******/ // setup Promise in chunk cache
/******/ var promise = new Promise(function(resolve, reject) {
/******/ installedChunkData = installedChunks[chunkId] = [resolve, reject];
/******/ });
/******/ promises.push(installedChunkData[2] = promise);
/******/
/******/ // start chunk loading
/******/ var url = __webpack_require__.p + __webpack_require__.u(chunkId);
/******/ var loadingEnded = function() { if(installedChunks[chunkId]) return installedChunks[chunkId][1]; if(installedChunks[chunkId] !== 0) installedChunks[chunkId] = undefined; };
/******/ var script = document.createElement('script');
/******/ var onScriptComplete;
/******/
/******/ script.charset = 'utf-8';
/******/ script.timeout = 120;
/******/ if (__webpack_require__.nc) {
/******/ script.setAttribute("nonce", __webpack_require__.nc);
/******/ }
/******/ script.src = url;
/******/
/******/ onScriptComplete = function (event) {
/******/ // avoid mem leaks in IE.
/******/ script.onerror = script.onload = null;
/******/ clearTimeout(timeout);
/******/ var reportError = loadingEnded();
/******/ if(reportError) {
/******/ var errorType = event && (event.type === 'load' ? 'missing' : event.type);
/******/ var realSrc = event && event.target && event.target.src;
/******/ var error = new Error('Loading chunk ' + chunkId + ' failed.\n(' + errorType + ': ' + realSrc + ')');
/******/ error.type = errorType;
/******/ error.request = realSrc;
/******/ reportError(error);
/******/ }
/******/ };
/******/ var timeout = setTimeout(function(){
/******/ onScriptComplete({ type: 'timeout', target: script });
/******/ }, 120000);
/******/ script.onerror = script.onload = onScriptComplete;
/******/ document.head.appendChild(script);
/******/
/******/ // no HMR
/******/ }
/******/ }
/******/
/******/ // no chunk preloading needed
/******/ };
/******/
/******/ // no prefetching
/******/
/******/ // no HMR
/******/
/******/ // no HMR manifest
/******/
/******/ // no deferred startup
/******/
/******/ // install a JSONP callback for chunk loading
/******/ function webpackJsonpCallback(data) {
/******/ var chunkIds = data[0];
/******/ var moreModules = data[1];
/******/
/******/ var runtime = data[3];
/******/
/******/ // add "moreModules" to the modules object,
/******/ // then flag all "chunkIds" as loaded and fire callback
/******/ var moduleId, chunkId, i = 0, resolves = [];
/******/ for(;i < chunkIds.length; i++) {
/******/ chunkId = chunkIds[i];
/******/ if(installedChunks[chunkId]) {
/******/ resolves.push(installedChunks[chunkId][0]);
/******/ }
/******/ installedChunks[chunkId] = 0;
/******/ }
/******/ for(moduleId in moreModules) {
/******/ if(Object.prototype.hasOwnProperty.call(moreModules, moduleId)) {
/******/ __webpack_require__.m[moduleId] = moreModules[moduleId];
/******/ }
/******/ }
/******/ if(runtime) runtime(__webpack_require__);
/******/ if(parentJsonpFunction) parentJsonpFunction(data);
/******/
/******/ while(resolves.length) {
/******/ resolves.shift()();
/******/ }
/******/
/******/ };
/******/
/******/ var jsonpArray = window["webpackJsonp"] = window["webpackJsonp"] || [];
/******/ var oldJsonpFunction = jsonpArray.push.bind(jsonpArray);
/******/ jsonpArray.push = webpackJsonpCallback;
/******/
/******/ var parentJsonpFunction = oldJsonpFunction;
/******/ }();
/******/
/******/ }
);
dist/85.output.js
(window["webpackJsonp"] = window["webpackJsonp"] || []).push([[85],{
/***/ 4:
/*!**************!*\
!*** ./d.js ***!
\**************/
/*! no static exports found */
/*! runtime requirements: module */
/***/ (function(module) {
module.exports = "d";
/***/ })
}]);
dist/324.output.js
(window["webpackJsonp"] = window["webpackJsonp"] || []).push([[324],[
/* 0 */,
/* 1 */
/*!**************!*\
!*** ./a.js ***!
\**************/
/*! no static exports found */
/*! runtime requirements: module */
/***/ (function(module) {
module.exports = "a";
/***/ }),
/* 2 */
/*!**************!*\
!*** ./b.js ***!
\**************/
/*! no static exports found */
/*! runtime requirements: module */
/***/ (function(module) {
module.exports = "b";
/***/ })
]]);
dist/911.output.js
(window["webpackJsonp"] = window["webpackJsonp"] || []).push([[911],{
/***/ 3:
/*!**************!*\
!*** ./c.js ***!
\**************/
/*! no static exports found */
/*! runtime requirements: module */
/***/ (function(module) {
module.exports = "c";
/***/ })
}]);
Info
Unoptimized
Hash: 0a1b2c3d4e5f6a7b8c9d
Version: webpack 5.0.0-next
Asset Size Chunks Chunk Names
324.output.js 470 bytes {324} [emitted]
85.output.js 269 bytes {85} [emitted]
911.output.js 270 bytes {911} [emitted]
output.js 7.49 KiB {404} [emitted] main
Entrypoint main = output.js
chunk {85} 85.output.js 21 bytes <{404}> ={324}= [rendered]
> [0] ./example.js 5:0-8:2
[4] ./d.js 21 bytes {85} [built]
[used exports unknown]
cjs require ./d [0] ./example.js 7:1-15
chunk {324} 324.output.js 42 bytes <{404}> ={85}= ={911}= [rendered] split chunk (cache group: default)
> ./a ./b ./c [0] ./example.js 2:0-30
> [0] ./example.js 5:0-8:2
[1] ./a.js 21 bytes {324} [built]
[used exports unknown]
amd require ./a [0] ./example.js 2:0-30
require.ensure item ./a [0] ./example.js 5:0-8:2
[2] ./b.js 21 bytes {324} [built]
[used exports unknown]
amd require ./b [0] ./example.js 2:0-30
cjs require ./b [0] ./example.js 6:1-15
chunk {404} output.js (main) 164 bytes (javascript) 3.55 KiB (runtime) >{85}< >{324}< >{911}< [entry] [rendered]
> .\example.js main
[0] ./example.js 164 bytes {404} [built]
[used exports unknown]
entry .\example.js main
+ 4 hidden chunk modules
chunk {911} 911.output.js 21 bytes <{404}> ={324}= [rendered]
> ./a ./b ./c [0] ./example.js 2:0-30
[3] ./c.js 21 bytes {911} [built]
[used exports unknown]
amd require ./c [0] ./example.js 2:0-30
Production mode
Hash: 0a1b2c3d4e5f6a7b8c9d
Version: webpack 5.0.0-next
Asset Size Chunks Chunk Names
324.output.js 123 bytes {324} [emitted]
85.output.js 91 bytes {85} [emitted]
911.output.js 93 bytes {911} [emitted]
output.js 1.5 KiB {404} [emitted] main
Entrypoint main = output.js
chunk {85} 85.output.js 21 bytes <{404}> ={324}= [rendered]
> [275] ./example.js 5:0-8:2
[85] ./d.js 21 bytes {85} [built]
cjs require ./d [275] ./example.js 7:1-15
chunk {324} 324.output.js 42 bytes <{404}> ={85}= ={911}= [rendered] split chunk (cache group: default)
> ./a ./b ./c [275] ./example.js 2:0-30
> [275] ./example.js 5:0-8:2
[21] ./b.js 21 bytes {324} [built]
amd require ./b [275] ./example.js 2:0-30
cjs require ./b [275] ./example.js 6:1-15
[162] ./a.js 21 bytes {324} [built]
amd require ./a [275] ./example.js 2:0-30
require.ensure item ./a [275] ./example.js 5:0-8:2
chunk {404} output.js (main) 164 bytes (javascript) 3.55 KiB (runtime) >{85}< >{324}< >{911}< [entry] [rendered]
> .\example.js main
[275] ./example.js 164 bytes {404} [built]
entry .\example.js main
+ 4 hidden chunk modules
chunk {911} 911.output.js 21 bytes <{404}> ={324}= [rendered]
> ./a ./b ./c [275] ./example.js 2:0-30
[911] ./c.js 21 bytes {911} [built]
amd require ./c [275] ./example.js 2:0-30