12 KiB
12 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
/******/ (() => { // webpackBootstrap
/******/ var __webpack_modules__ = ([
/* 0 */,
/* 1 */
/*!***********************************************************!*\
!*** ../../node_modules/bundle-loader/index.js!./file.js ***!
\***********************************************************/
/*! unknown exports (runtime-defined) */
/*! runtime requirements: module, __webpack_require__, __webpack_require__.e, __webpack_require__.* */
/*! CommonJS bailout: module.exports is used directly at 3:0-14 */
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {
var cbs = [],
data;
module.exports = function(cb) {
if(cbs) cbs.push(cb);
else cb(data);
}
__webpack_require__.e(/*! require.ensure */ 929).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);
/***/ })
/******/ ]);
/* webpack runtime code */
/************************************************************************/
/******/ // The module cache
/******/ var __webpack_module_cache__ = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/ // Check if module is in cache
/******/ if(__webpack_module_cache__[moduleId]) {
/******/ return __webpack_module_cache__[moduleId].exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = __webpack_module_cache__[moduleId] = {
/******/ // no module.id needed
/******/ // no module.loaded needed
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__);
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = __webpack_modules__;
/******/
/************************************************************************/
/******/ /* webpack/runtime/ensure chunk */
/******/ (() => {
/******/ __webpack_require__.f = {};
/******/ // This file contains only the entry chunk.
/******/ // The chunk loading function for additional chunks
/******/ __webpack_require__.e = (chunkId) => {
/******/ return Promise.all(Object.keys(__webpack_require__.f).reduce((promises, key) => {
/******/ __webpack_require__.f[key](chunkId, promises);
/******/ return promises;
/******/ }, []));
/******/ };
/******/ })();
/******/
/******/ /* webpack/runtime/get javascript chunk filename */
/******/ (() => {
/******/ // This function allow to reference async chunks
/******/ __webpack_require__.u = (chunkId) => {
/******/ // return url for filenames based on template
/******/ return "" + chunkId + ".output.js";
/******/ };
/******/ })();
/******/
/******/ /* webpack/runtime/hasOwnProperty shorthand */
/******/ (() => {
/******/ __webpack_require__.o = (obj, prop) => Object.prototype.hasOwnProperty.call(obj, prop)
/******/ })();
/******/
/******/ /* webpack/runtime/load script */
/******/ (() => {
/******/ var inProgress = {};
/******/ // data-webpack is not used as build has no uniqueName
/******/ // loadScript function to load a script via script tag
/******/ __webpack_require__.l = (url, done, key) => {
/******/ if(inProgress[url]) { inProgress[url].push(done); return; }
/******/ var script, needAttach;
/******/ if(key !== undefined) {
/******/ var scripts = document.getElementsByTagName("script");
/******/ for(var i = 0; i < scripts.length; i++) {
/******/ var s = scripts[i];
/******/ if(s.getAttribute("src") == url) { script = s; break; }
/******/ }
/******/ }
/******/ if(!script) {
/******/ needAttach = true;
/******/ script = document.createElement('script');
/******/
/******/ script.charset = 'utf-8';
/******/ script.timeout = 120;
/******/ if (__webpack_require__.nc) {
/******/ script.setAttribute("nonce", __webpack_require__.nc);
/******/ }
/******/
/******/ script.src = url;
/******/ }
/******/ inProgress[url] = [done];
/******/ var onScriptComplete = (prev, event) => {
/******/ // avoid mem leaks in IE.
/******/ script.onerror = script.onload = null;
/******/ clearTimeout(timeout);
/******/ var doneFns = inProgress[url];
/******/ delete inProgress[url];
/******/ script.parentNode && script.parentNode.removeChild(script);
/******/ doneFns && doneFns.forEach((fn) => fn(event));
/******/ if(prev) return prev(event);
/******/ }
/******/ ;
/******/ var timeout = setTimeout(onScriptComplete.bind(null, undefined, { type: 'timeout', target: script }), 120000);
/******/ script.onerror = onScriptComplete.bind(null, script.onerror);
/******/ script.onload = onScriptComplete.bind(null, script.onload);
/******/ needAttach && document.head.appendChild(script);
/******/ };
/******/ })();
/******/
/******/ /* webpack/runtime/publicPath */
/******/ (() => {
/******/ __webpack_require__.p = "dist/";
/******/ })();
/******/
/******/ /* webpack/runtime/jsonp chunk loading */
/******/ (() => {
/******/ // no baseURI
/******/
/******/ // object to store loaded and loading chunks
/******/ // undefined = chunk not loaded, null = chunk preloaded/prefetched
/******/ // Promise = chunk loading, 0 = chunk loaded
/******/ var installedChunks = {
/******/ 179: 0
/******/ };
/******/
/******/
/******/ __webpack_require__.f.j = (chunkId, promises) => {
/******/ // JSONP chunk loading for javascript
/******/ var installedChunkData = __webpack_require__.o(installedChunks, chunkId) ? installedChunks[chunkId] : undefined;
/******/ if(installedChunkData !== 0) { // 0 means "already installed".
/******/
/******/ // a Promise means "currently loading".
/******/ if(installedChunkData) {
/******/ promises.push(installedChunkData[2]);
/******/ } else {
/******/ if(true) { // all chunks have JS
/******/ // setup Promise in chunk cache
/******/ var promise = new Promise((resolve, reject) => {
/******/ installedChunkData = installedChunks[chunkId] = [resolve, reject];
/******/ });
/******/ promises.push(installedChunkData[2] = promise);
/******/
/******/ // start chunk loading
/******/ var url = __webpack_require__.p + __webpack_require__.u(chunkId);
/******/ // create error before stack unwound to get useful stacktrace later
/******/ var error = new Error();
/******/ var loadingEnded = (event) => {
/******/ if(__webpack_require__.o(installedChunks, chunkId)) {
/******/ installedChunkData = installedChunks[chunkId];
/******/ if(installedChunkData !== 0) installedChunks[chunkId] = undefined;
/******/ if(installedChunkData) {
/******/ var errorType = event && (event.type === 'load' ? 'missing' : event.type);
/******/ var realSrc = event && event.target && event.target.src;
/******/ error.message = 'Loading chunk ' + chunkId + ' failed.\n(' + errorType + ': ' + realSrc + ')';
/******/ error.name = 'ChunkLoadError';
/******/ error.type = errorType;
/******/ error.request = realSrc;
/******/ installedChunkData[1](error);
/******/ }
/******/ }
/******/ };
/******/ __webpack_require__.l(url, loadingEnded, "chunk-" + chunkId);
/******/ } else installedChunks[chunkId] = 0;
/******/ }
/******/ }
/******/ };
/******/
/******/ // no prefetching
/******/
/******/ // no preloaded
/******/
/******/ // no HMR
/******/
/******/ // no HMR manifest
/******/
/******/ // no deferred startup
/******/
/******/ // install a JSONP callback for chunk loading
/******/ var webpackJsonpCallback = (data) => {
/******/ var [chunkIds, moreModules, runtime] = data;
/******/ // 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(__webpack_require__.o(installedChunks, chunkId) && installedChunks[chunkId]) {
/******/ resolves.push(installedChunks[chunkId][0]);
/******/ }
/******/ installedChunks[chunkId] = 0;
/******/ }
/******/ for(moduleId in moreModules) {
/******/ if(__webpack_require__.o(moreModules, moduleId)) {
/******/ __webpack_require__.m[moduleId] = moreModules[moduleId];
/******/ }
/******/ }
/******/ if(runtime) runtime(__webpack_require__);
/******/ parentChunkLoadingFunction(data);
/******/ while(resolves.length) {
/******/ resolves.shift()();
/******/ }
/******/
/******/ }
/******/
/******/ var chunkLoadingGlobal = self["webpackChunk"] = self["webpackChunk"] || [];
/******/ var parentChunkLoadingFunction = chunkLoadingGlobal.push.bind(chunkLoadingGlobal);
/******/ chunkLoadingGlobal.push = webpackJsonpCallback;
/******/ })();
/******/
/************************************************************************/
(() => {
/*!********************!*\
!*** ./example.js ***!
\********************/
/*! unknown exports (runtime-defined) */
/*! runtime requirements: __webpack_require__ */
__webpack_require__(/*! bundle-loader!./file.js */ 1)(function(fileJsExports) {
console.log(fileJsExports);
});
})();
/******/ })()
;
dist/929.output.js
(self["webpackChunk"] = self["webpackChunk"] || []).push([[929],{
/***/ 2:
/*!*****************!*\
!*** ./file.js ***!
\*****************/
/*! unknown exports (runtime-defined) */
/*! runtime requirements: module */
/*! CommonJS bailout: module.exports is used directly at 1:0-14 */
/***/ ((module) => {
module.exports = "It works";
/***/ })
}]);
Info
Unoptimized
asset output.js 9.44 KiB [emitted] (name: main)
asset 929.output.js 354 bytes [emitted]
chunk output.js (main) 375 bytes (javascript) 4.85 KiB (runtime) [entry] [rendered]
> ./example.js main
runtime modules 4.85 KiB 6 modules
dependent modules 281 bytes [dependent] 1 module
./example.js 94 bytes [built] [code generated]
[used exports unknown]
entry ./example.js main
chunk 929.output.js 28 bytes [rendered]
> ../../node_modules/bundle-loader/index.js!./file.js 7:0-14:2
./file.js 28 bytes [built] [code generated]
[used exports unknown]
cjs self exports reference ./file.js 1:0-14
cjs require !!./file.js ../../node_modules/bundle-loader/index.js!./file.js 8:8-30
webpack 5.0.0-beta.32 compiled successfully
Production mode
asset output.js 1.79 KiB [emitted] [minimized] (name: main)
asset 929.output.js 88 bytes [emitted] [minimized]
chunk (runtime: main) output.js (main) 375 bytes (javascript) 4.85 KiB (runtime) [entry] [rendered]
> ./example.js main
runtime modules 4.85 KiB 6 modules
dependent modules 281 bytes [dependent] 1 module
./example.js 94 bytes [built] [code generated]
[no exports used]
entry ./example.js main
chunk (runtime: main) 929.output.js 28 bytes [rendered]
> ../../node_modules/bundle-loader/index.js!./file.js 7:0-14:2
./file.js 28 bytes [built] [code generated]
[used exports unknown]
cjs self exports reference ./file.js 1:0-14
cjs require !!./file.js ../../node_modules/bundle-loader/index.js!./file.js 8:8-30
webpack 5.0.0-beta.32 compiled successfully