11 KiB
11 KiB
This example combines Code Splitting and Loaders. Make sure you have read the documentation of the examples that show the feature alone.
The bundle loader is used to create a wrapper module for file.js that loads this module on demand. The wrapper module returns a function that can be called to asynchronously receive the inner module.
example.js
require("bundle-loader!./file.js")(function(fileJsExports) {
console.log(fileJsExports);
});
file.js
module.exports = "It works";
dist/output.js
/******/ (function(modules) { /* webpackBootstrap */ })
/******/ (function(modules) { // webpackBootstrap
/******/ // install a JSONP callback for chunk loading
/******/ function webpackJsonpCallback(data) {
/******/ var chunkIds = data[0];
/******/ var moreModules = data[1];
/******/
/******/
/******/ // 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)) {
/******/ modules[moduleId] = moreModules[moduleId];
/******/ }
/******/ }
/******/ if(parentJsonpFunction) parentJsonpFunction(data);
/******/
/******/ while(resolves.length) {
/******/ resolves.shift()();
/******/ }
/******/
/******/ };
/******/
/******/
/******/ // The module cache
/******/ var installedModules = {};
/******/
/******/ // object to store loaded and loading chunks
/******/ // undefined = chunk not loaded, null = chunk preloaded/prefetched
/******/ // Promise = chunk loading, 0 = chunk loaded
/******/ var installedChunks = {
/******/ 0: 0
/******/ };
/******/
/******/
/******/
/******/ // script path function
/******/ function jsonpScriptSrc(chunkId) {
/******/ return __webpack_require__.p + "" + chunkId + ".output.js"
/******/ }
/******/
/******/ // 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;
/******/ }
/******/
/******/ // This file contains only the entry chunk.
/******/ // The chunk loading function for additional chunks
/******/ __webpack_require__.e = function requireEnsure(chunkId) {
/******/ var 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 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 = jsonpScriptSrc(chunkId);
/******/
/******/ onScriptComplete = function (event) {
/******/ // avoid mem leaks in IE.
/******/ script.onerror = script.onload = null;
/******/ clearTimeout(timeout);
/******/ var chunk = installedChunks[chunkId];
/******/ if(chunk !== 0) {
/******/ if(chunk) {
/******/ 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;
/******/ chunk[1](error);
/******/ }
/******/ installedChunks[chunkId] = undefined;
/******/ }
/******/ };
/******/ var timeout = setTimeout(function(){
/******/ onScriptComplete({ type: 'timeout', target: script });
/******/ }, 120000);
/******/ script.onerror = script.onload = onScriptComplete;
/******/ document.head.appendChild(script);
/******/ }
/******/ }
/******/ return Promise.all(promises);
/******/ };
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/
/******/ // define getter function for harmony exports
/******/ __webpack_require__.d = function(exports, name, getter) {
/******/ if(!__webpack_require__.o(exports, name)) {
/******/ Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ }
/******/ };
/******/
/******/ // define __esModule on exports
/******/ __webpack_require__.r = function(exports) {
/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ }
/******/ Object.defineProperty(exports, '__esModule', { value: true });
/******/ };
/******/
/******/ // create a fake namespace object
/******/ // mode & 1: value is a module id, require it
/******/ // mode & 2: merge all properties of value into the ns
/******/ // mode & 4: return value when already ns object
/******/ // mode & 8|1: behave like require
/******/ __webpack_require__.t = function(value, mode) {
/******/ if(mode & 1) value = __webpack_require__(value);
/******/ if(mode & 8) return value;
/******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ var ns = Object.create(null);
/******/ __webpack_require__.r(ns);
/******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ return ns;
/******/ };
/******/
/******/ // getDefaultExport function for compatibility with non-harmony modules
/******/ __webpack_require__.n = function(module) {
/******/ var getter = module && module.__esModule ?
/******/ function getDefault() { return module['default']; } :
/******/ function getModuleExports() { return module; };
/******/ __webpack_require__.d(getter, 'a', getter);
/******/ return getter;
/******/ };
/******/
/******/ // Object.prototype.hasOwnProperty.call
/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ // __webpack_public_path__
/******/ __webpack_require__.p = "dist/";
/******/
/******/ // on error function for async loading
/******/ __webpack_require__.oe = function(err) { console.error(err); throw err; };
/******/
/******/ var jsonpArray = window["webpackJsonp"] = window["webpackJsonp"] || [];
/******/ var oldJsonpFunction = jsonpArray.push.bind(jsonpArray);
/******/ jsonpArray.push = webpackJsonpCallback;
/******/ jsonpArray = jsonpArray.slice();
/******/ for(var i = 0; i < jsonpArray.length; i++) webpackJsonpCallback(jsonpArray[i]);
/******/ var parentJsonpFunction = oldJsonpFunction;
/******/
/******/
/******/ // Load entry module and return exports
/******/ return __webpack_require__(__webpack_require__.s = 0);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/*!********************!*\
!*** ./example.js ***!
\********************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {
__webpack_require__(/*! bundle-loader!./file.js */ 1)(function(fileJsExports) {
console.log(fileJsExports);
});
/***/ }),
/* 1 */
/*!******************************************************!*\
!*** (webpack)/node_modules/bundle-loader!./file.js ***!
\******************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {
var cbs = [],
data;
module.exports = function(cb) {
if(cbs) cbs.push(cb);
else cb(data);
}
__webpack_require__.e(/*! require.ensure */ 1).then((function(require) {
data = __webpack_require__(/*! !./file.js */ 2);
var callbacks = cbs;
cbs = null;
for(var i = 0, l = callbacks.length; i < l; i++) {
callbacks[i](data);
}
}).bind(null, __webpack_require__)).catch(__webpack_require__.oe);
/***/ })
/******/ ]);
dist/1.output.js
(window["webpackJsonp"] = window["webpackJsonp"] || []).push([[1],{
/***/ 2:
/*!*****************!*\
!*** ./file.js ***!
\*****************/
/*! no static exports found */
/***/ (function(module, exports) {
module.exports = "It works";
/***/ })
}]);
Info
Unoptimized
Hash: 0a1b2c3d4e5f6a7b8c9d
Version: webpack 4.29.6
Asset Size Chunks Chunk Names
1.output.js 257 bytes 1 [emitted]
output.js 8.78 KiB 0 [emitted] main
Entrypoint main = output.js
chunk {0} output.js (main) 375 bytes >{1}< [entry] [rendered]
> ./example.js main
[0] ./example.js 94 bytes {0} [built]
single entry ./example.js main
[1] (webpack)/node_modules/bundle-loader!./file.js 281 bytes {0} [built]
cjs require bundle-loader!./file.js [0] ./example.js 1:0-34
chunk {1} 1.output.js 28 bytes <{0}> [rendered]
> [1] (webpack)/node_modules/bundle-loader!./file.js 7:0-14:2
[2] ./file.js 28 bytes {1} [built]
cjs require !!./file.js [1] (webpack)/node_modules/bundle-loader!./file.js 8:8-30
Production mode
Hash: 0a1b2c3d4e5f6a7b8c9d
Version: webpack 4.29.6
Asset Size Chunks Chunk Names
1.output.js 98 bytes 1 [emitted]
output.js 2.16 KiB 0 [emitted] main
Entrypoint main = output.js
chunk {0} output.js (main) 375 bytes >{1}< [entry] [rendered]
> ./example.js main
[0] ./example.js 94 bytes {0} [built]
single entry ./example.js main
[1] (webpack)/node_modules/bundle-loader!./file.js 281 bytes {0} [built]
cjs require bundle-loader!./file.js [0] ./example.js 1:0-34
chunk {1} 1.output.js 28 bytes <{0}> [rendered]
> [1] (webpack)/node_modules/bundle-loader!./file.js 7:0-14:2
[2] ./file.js 28 bytes {1} [built]
cjs require !!./file.js [1] (webpack)/node_modules/bundle-loader!./file.js 8:8-30