mirror of https://github.com/webpack/webpack.git
367 lines
13 KiB
Markdown
367 lines
13 KiB
Markdown
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This example shows how to use Code Splitting with entrypoint dependOn
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# webpack.config.js
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```javascript
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module.exports = {
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entry: {
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app: { import: "./app.js", dependOn: ["react-vendors"] },
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"react-vendors": ["react", "react-dom", "prop-types"]
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},
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optimization: {
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chunkIds: "deterministic" // To keep filename consistent between different modes (for example building only)
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}
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};
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```
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# app.js
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```javascript
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import react from "react";
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import reactDOM from "react-dom";
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import propTypes from "prop-types";
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console.log(react, reactDOM, propTypes);
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```
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# react-vendors.js
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```javascript
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export { default as react } from "react";
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export { default as reactDOM } from "react-dom";
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export { default as propTypes } from "prop-types";
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```
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# dist/app.js
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```javascript
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(window["webpackJsonp"] = window["webpackJsonp"] || []).push([[143],[
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/* 0 */
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/*!****************!*\
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!*** ./app.js ***!
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\****************/
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/*! namespace exports */
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/*! exports [not provided] [unused] */
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/*! runtime requirements: __webpack_require__, __webpack_require__.n, __webpack_require__.* */
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/***/ ((__unused_webpack_module, __unused_webpack___webpack_exports__, __webpack_require__) => {
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"use strict";
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/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! react */ 1);
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/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
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/* harmony import */ var react_dom__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! react-dom */ 2);
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/* harmony import */ var react_dom__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(react_dom__WEBPACK_IMPORTED_MODULE_1__);
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/* harmony import */ var prop_types__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! prop-types */ 3);
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/* harmony import */ var prop_types__WEBPACK_IMPORTED_MODULE_2___default = /*#__PURE__*/__webpack_require__.n(prop_types__WEBPACK_IMPORTED_MODULE_2__);
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console.log((react__WEBPACK_IMPORTED_MODULE_0___default()), (react_dom__WEBPACK_IMPORTED_MODULE_1___default()), (prop_types__WEBPACK_IMPORTED_MODULE_2___default()));
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/***/ })
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],[[0,703]]]);
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```
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# dist/react-vendors.js
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```javascript
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/******/ (() => { // webpackBootstrap
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/******/ var __webpack_modules__ = ([
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/* 0 */,
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/* 1 */
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/*!*******************************!*\
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!*** ./node_modules/react.js ***!
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\*******************************/
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/*! unknown exports (runtime-defined) */
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/*! export default [maybe provided (runtime-defined)] [used] [usage and provision prevents renaming] */
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/*! other exports [maybe provided (runtime-defined)] [maybe used (runtime-defined)] */
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/*! runtime requirements: module */
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/***/ ((module) => {
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module.exports = 'react';
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/***/ }),
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/* 2 */
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/*!***********************************!*\
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!*** ./node_modules/react-dom.js ***!
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\***********************************/
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/*! unknown exports (runtime-defined) */
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/*! export default [maybe provided (runtime-defined)] [used] [usage and provision prevents renaming] */
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/*! other exports [maybe provided (runtime-defined)] [maybe used (runtime-defined)] */
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/*! runtime requirements: module */
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/***/ ((module) => {
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module.exports = 'react-dom';
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/***/ }),
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/* 3 */
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/*!************************************!*\
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!*** ./node_modules/prop-types.js ***!
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\************************************/
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/*! unknown exports (runtime-defined) */
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/*! export default [maybe provided (runtime-defined)] [used] [usage and provision prevents renaming] */
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/*! other exports [maybe provided (runtime-defined)] [maybe used (runtime-defined)] */
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/*! runtime requirements: module */
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/***/ ((module) => {
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module.exports = 'react';
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/***/ })
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/******/ ]);
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```
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<details><summary><code>/* webpack runtime code */</code></summary>
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``` js
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/************************************************************************/
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/******/ // The module cache
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/******/ var __webpack_module_cache__ = {};
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/******/
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/******/ // The require function
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/******/ function __webpack_require__(moduleId) {
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/******/ // Check if module is in cache
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/******/ if(__webpack_module_cache__[moduleId]) {
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/******/ return __webpack_module_cache__[moduleId].exports;
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/******/ }
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/******/ // Create a new module (and put it into the cache)
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/******/ var module = __webpack_module_cache__[moduleId] = {
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/******/ // no module.id needed
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/******/ // no module.loaded needed
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/******/ exports: {}
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/******/ };
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/******/
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/******/ // Execute the module function
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/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__);
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/******/
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/******/ // Return the exports of the module
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/******/ return module.exports;
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/******/ }
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/******/
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/******/ // expose the modules object (__webpack_modules__)
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/******/ __webpack_require__.m = __webpack_modules__;
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/******/
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/************************************************************************/
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/******/ /* webpack/runtime/compat get default export */
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/******/ (() => {
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/******/ // getDefaultExport function for compatibility with non-harmony modules
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/******/ __webpack_require__.n = (module) => {
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/******/ var getter = module && module.__esModule ?
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/******/ () => module['default'] :
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/******/ () => module;
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/******/ __webpack_require__.d(getter, { a: getter });
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/******/ return getter;
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/******/ };
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/******/ })();
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/******/
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/******/ /* webpack/runtime/define property getters */
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/******/ (() => {
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/******/ // define getter functions for harmony exports
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/******/ __webpack_require__.d = (exports, definition) => {
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/******/ for(var key in definition) {
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/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
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/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
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/******/ }
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/******/ }
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/******/ };
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/******/ })();
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/******/
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/******/ /* webpack/runtime/hasOwnProperty shorthand */
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/******/ (() => {
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/******/ __webpack_require__.o = (obj, prop) => Object.prototype.hasOwnProperty.call(obj, prop)
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/******/ })();
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/******/
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/******/ /* webpack/runtime/jsonp chunk loading */
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/******/ (() => {
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/******/ // object to store loaded and loading chunks
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/******/ // undefined = chunk not loaded, null = chunk preloaded/prefetched
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/******/ // Promise = chunk loading, 0 = chunk loaded
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/******/ var installedChunks = {
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/******/ 703: 0
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/******/ };
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/******/
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/******/ var deferredModules = [
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/******/ [1],
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/******/ [2],
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/******/ [3]
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/******/ ];
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/******/ // no chunk on demand loading
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/******/
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/******/ // no prefetching
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/******/
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/******/ // no preloaded
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/******/
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/******/ // no HMR
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/******/
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/******/ // no HMR manifest
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/******/
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/******/ var checkDeferredModules = () => {
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/******/
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/******/ };
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/******/ function checkDeferredModulesImpl() {
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/******/ var result;
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/******/ for(var i = 0; i < deferredModules.length; i++) {
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/******/ var deferredModule = deferredModules[i];
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/******/ var fulfilled = true;
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/******/ for(var j = 1; j < deferredModule.length; j++) {
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/******/ var depId = deferredModule[j];
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/******/ if(installedChunks[depId] !== 0) fulfilled = false;
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/******/ }
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/******/ if(fulfilled) {
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/******/ deferredModules.splice(i--, 1);
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/******/ result = __webpack_require__(__webpack_require__.s = deferredModule[0]);
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/******/ }
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/******/ }
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/******/ if(deferredModules.length === 0) {
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/******/ __webpack_require__.x();
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/******/ __webpack_require__.x = () => {
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/******/
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/******/ }
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/******/ }
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/******/ return result;
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/******/ }
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/******/ __webpack_require__.x = () => {
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/******/ // reset startup function so it can be called again when more startup code is added
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/******/ __webpack_require__.x = () => {
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/******/
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/******/ }
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/******/ jsonpArray = jsonpArray.slice();
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/******/ for(var i = 0; i < jsonpArray.length; i++) webpackJsonpCallback(jsonpArray[i]);
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/******/ return (checkDeferredModules = checkDeferredModulesImpl)();
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/******/ };
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/******/
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/******/ // install a JSONP callback for chunk loading
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/******/ function webpackJsonpCallback(data) {
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/******/ var chunkIds = data[0];
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/******/ var moreModules = data[1];
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/******/ var executeModules = data[2];
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/******/ var runtime = data[3];
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/******/ // add "moreModules" to the modules object,
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/******/ // then flag all "chunkIds" as loaded and fire callback
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/******/ var moduleId, chunkId, i = 0, resolves = [];
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/******/ for(;i < chunkIds.length; i++) {
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/******/ chunkId = chunkIds[i];
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/******/ if(__webpack_require__.o(installedChunks, chunkId) && installedChunks[chunkId]) {
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/******/ resolves.push(installedChunks[chunkId][0]);
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/******/ }
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/******/ installedChunks[chunkId] = 0;
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/******/ }
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/******/ for(moduleId in moreModules) {
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/******/ if(__webpack_require__.o(moreModules, moduleId)) {
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/******/ __webpack_require__.m[moduleId] = moreModules[moduleId];
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/******/ }
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/******/ }
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/******/ if(runtime) runtime(__webpack_require__);
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/******/ if(parentJsonpFunction) parentJsonpFunction(data);
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/******/ while(resolves.length) {
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/******/ resolves.shift()();
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/******/ }
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/******/
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/******/ // add entry modules from loaded chunk to deferred list
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/******/ if(executeModules) deferredModules.push.apply(deferredModules, executeModules);
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/******/
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/******/ // run deferred modules when all chunks ready
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/******/ return checkDeferredModules();
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/******/ };
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/******/
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/******/ var jsonpArray = window["webpackJsonp"] = window["webpackJsonp"] || [];
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/******/ var oldJsonpFunction = jsonpArray.push.bind(jsonpArray);
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/******/ jsonpArray.push = webpackJsonpCallback;
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/******/ var parentJsonpFunction = oldJsonpFunction;
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/******/ })();
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/******/
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/************************************************************************/
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```
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</details>
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``` js
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/******/ // run startup
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/******/ return __webpack_require__.x();
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/******/ })()
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;
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```
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# Info
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## Unoptimized
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```
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Hash: 0a1b2c3d4e5f6a7b8c9d
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Version: webpack 5.0.0-beta.13
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Asset Size
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app.js 1.34 KiB [emitted] [name: app]
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react-vendors.js 7.44 KiB [emitted] [name: react-vendors]
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Entrypoint app = app.js react-vendors.js
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Entrypoint react-vendors = react-vendors.js
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chunk app.js (app) 139 bytes [initial] [rendered]
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> ./app.js app
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./app.js 139 bytes [built]
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[no exports]
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[no exports used]
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entry ./app.js app
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chunk react-vendors.js (react-vendors) 82 bytes (javascript) 3.16 KiB (runtime) [entry] [rendered]
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> ./app.js app
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> prop-types react-vendors
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> react react-vendors
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> react-dom react-vendors
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./node_modules/prop-types.js 26 bytes [built]
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harmony side effect evaluation prop-types ./app.js 3:0-35
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harmony import specifier prop-types ./app.js 5:29-38
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cjs self exports reference ./node_modules/prop-types.js 1:0-14
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entry prop-types react-vendors
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./node_modules/react-dom.js 30 bytes [built]
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harmony side effect evaluation react-dom ./app.js 2:0-33
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harmony import specifier react-dom ./app.js 5:19-27
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cjs self exports reference ./node_modules/react-dom.js 1:0-14
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entry react-dom react-vendors
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./node_modules/react.js 26 bytes [built]
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harmony side effect evaluation react ./app.js 1:0-26
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harmony import specifier react ./app.js 5:12-17
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cjs self exports reference ./node_modules/react.js 1:0-14
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entry react react-vendors
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+ 4 hidden chunk modules
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```
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## Production mode
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```
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Hash: 0a1b2c3d4e5f6a7b8c9d
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Version: webpack 5.0.0-beta.13
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Asset Size
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app.js 183 bytes [emitted] [name: app]
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react-vendors.js 1.06 KiB [emitted] [name: react-vendors]
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Entrypoint app = app.js react-vendors.js
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Entrypoint react-vendors = react-vendors.js
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chunk app.js (app) 139 bytes [initial] [rendered]
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> ./app.js app
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./app.js 139 bytes [built]
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[no exports]
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[no exports used]
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entry ./app.js app
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chunk react-vendors.js (react-vendors) 82 bytes (javascript) 3.17 KiB (runtime) [entry] [rendered]
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> ./app.js app
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> prop-types react-vendors
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> react react-vendors
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> react-dom react-vendors
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./node_modules/prop-types.js 26 bytes [built]
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|
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harmony side effect evaluation prop-types ./app.js 3:0-35
|
||
|
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harmony import specifier prop-types ./app.js 5:29-38
|
||
|
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cjs self exports reference ./node_modules/prop-types.js 1:0-14
|
||
|
|
entry prop-types react-vendors
|
||
|
|
./node_modules/react-dom.js 30 bytes [built]
|
||
|
|
harmony side effect evaluation react-dom ./app.js 2:0-33
|
||
|
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harmony import specifier react-dom ./app.js 5:19-27
|
||
|
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cjs self exports reference ./node_modules/react-dom.js 1:0-14
|
||
|
|
entry react-dom react-vendors
|
||
|
|
./node_modules/react.js 26 bytes [built]
|
||
|
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harmony side effect evaluation react ./app.js 1:0-26
|
||
|
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harmony import specifier react ./app.js 5:12-17
|
||
|
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cjs self exports reference ./node_modules/react.js 1:0-14
|
||
|
|
entry react react-vendors
|
||
|
|
+ 4 hidden chunk modules
|
||
|
|
```
|