webpack/examples/two-explicit-vendor-chunks/README.md

webpack.config.js

var path = require("path");
module.exports = {
	// mode: "development || "production",
	entry: {
		vendor1: ["./vendor1"],
		vendor2: ["./vendor2"],
		pageA: "./pageA",
		pageB: "./pageB",
		pageC: "./pageC"
	},
	output: {
		path: path.join(__dirname, "dist"),
		filename: "[name].js"
	},
	optimization: {
		splitChunks: {
			cacheGroups: {
				vendor1: {
					name: "vendor1",
					test: "vendor1",
					enforce: true
				},
				vendor2: {
					name: "vendor2",
					test: "vendor2",
					enforce: true
				}
			}
		}
	}
};

dist/vendor1.js

/******/ (() => { // webpackBootstrap
/******/ 	var __webpack_modules__ = ([
/* 0 */
/*!********************!*\
  !*** ./vendor1.js ***!
  \********************/
/*! unknown exports (runtime-defined) */
/*! runtime requirements: module */
/*! CommonJS bailout: module.exports is used directly at 1:0-14 */
/***/ ((module) => {

module.exports = "Vendor1";

/***/ })
/******/ 	]);

/* 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;
/******/ 	}
/******/ 	
/************************************************************************/

/******/ 	// startup
/******/ 	// Load entry module
/******/ 	__webpack_require__(0);
/******/ 	// This entry module used 'module' so it can't be inlined
/******/ })()
;

dist/vendor2.js

/******/ (() => { // webpackBootstrap
/******/ 	var __webpack_modules__ = ([
/* 0 */
/*!********************!*\
  !*** ./vendor1.js ***!
  \********************/
/*! unknown exports (runtime-defined) */
/*! runtime requirements: module */
/*! CommonJS bailout: module.exports is used directly at 1:0-14 */
/***/ ((module) => {

module.exports = "Vendor1";

/***/ }),
/* 1 */
/*!********************!*\
  !*** ./vendor2.js ***!
  \********************/
/*! unknown exports (runtime-defined) */
/*! runtime requirements: module, __webpack_require__ */
/*! CommonJS bailout: module.exports is used directly at 1:0-14 */
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

module.exports = "Vendor2";
__webpack_require__(/*! ./vendor1 */ 0);


/***/ })
/******/ 	]);

/* 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;
/******/ 	}
/******/ 	
/************************************************************************/

/******/ 	// startup
/******/ 	// Load entry module
/******/ 	__webpack_require__(1);
/******/ 	// This entry module used 'module' so it can't be inlined
/******/ })()
;

dist/pageA.js

/******/ (() => { // webpackBootstrap
/******/ 	var __webpack_modules__ = ([
/* 0 */
/*!********************!*\
  !*** ./vendor1.js ***!
  \********************/
/*! unknown exports (runtime-defined) */
/*! runtime requirements: module */
/*! CommonJS bailout: module.exports is used directly at 1:0-14 */
/***/ ((module) => {

module.exports = "Vendor1";

/***/ }),
/* 1 */
/*!********************!*\
  !*** ./vendor2.js ***!
  \********************/
/*! unknown exports (runtime-defined) */
/*! runtime requirements: module, __webpack_require__ */
/*! CommonJS bailout: module.exports is used directly at 1:0-14 */
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

module.exports = "Vendor2";
__webpack_require__(/*! ./vendor1 */ 0);


/***/ }),
/* 2 */
/*!******************!*\
  !*** ./pageA.js ***!
  \******************/
/*! unknown exports (runtime-defined) */
/*! runtime requirements: module, __webpack_require__ */
/*! CommonJS bailout: module.exports is used directly at 1:0-14 */
/***/ ((module, __unused_webpack_exports, __webpack_require__) => {

module.exports = "pageA";
__webpack_require__(/*! ./vendor1 */ 0);
__webpack_require__(/*! ./vendor2 */ 1);


/***/ })
/******/ 	]);

/* 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;
/******/ 	}
/******/ 	
/************************************************************************/

/******/ 	// startup
/******/ 	// Load entry module
/******/ 	__webpack_require__(2);
/******/ 	// This entry module used 'module' so it can't be inlined
/******/ })()
;

Info

Unoptimized

asset pageA.js 2.31 KiB [emitted] (name: pageA)
asset vendor2.js 1.89 KiB [emitted] (name: vendor2)
asset vendor1.js 1.5 KiB [emitted] (name: vendor1)
asset pageB.js 1.49 KiB [emitted] (name: pageB)
asset pageC.js 1.49 KiB [emitted] (name: pageC)
chunk pageA.js (pageA) 147 bytes [entry] [rendered]
  > ./pageA pageA
  dependent modules 77 bytes [dependent] 2 modules
  ./pageA.js 70 bytes [built] [code generated]
    [used exports unknown]
    cjs self exports reference ./pageA.js 1:0-14
    entry ./pageA pageA
chunk pageB.js (pageB) 25 bytes [entry] [rendered]
  > ./pageB pageB
  ./pageB.js 25 bytes [built] [code generated]
    [used exports unknown]
    cjs self exports reference ./pageB.js 1:0-14
    entry ./pageB pageB
chunk pageC.js (pageC) 25 bytes [entry] [rendered]
  > ./pageC pageC
  ./pageC.js 25 bytes [built] [code generated]
    [used exports unknown]
    cjs self exports reference ./pageC.js 1:0-14
    entry ./pageC pageC
chunk vendor1.js (vendor1) 27 bytes [entry] [rendered]
  > ./vendor1 vendor1
  ./vendor1.js 27 bytes [built] [code generated]
    [used exports unknown]
    cjs require ./vendor1 ./pageA.js 2:0-20
    cjs self exports reference ./vendor1.js 1:0-14
    cjs require ./vendor1 ./vendor2.js 2:0-20
    entry ./vendor1 vendor1
chunk vendor2.js (vendor2) 77 bytes [entry] [rendered]
  > ./vendor2 vendor2
  dependent modules 27 bytes [dependent] 1 module
  ./vendor2.js 50 bytes [built] [code generated]
    [used exports unknown]
    cjs require ./vendor2 ./pageA.js 3:0-20
    cjs self exports reference ./vendor2.js 1:0-14
    entry ./vendor2 vendor2
webpack 5.0.0-beta.32 compiled successfully

Production mode

asset pageA.js 251 bytes [emitted] [minimized] (name: pageA)
asset vendor2.js 204 bytes [emitted] [minimized] (name: vendor2)
asset vendor1.js 162 bytes [emitted] [minimized] (name: vendor1)
asset pageB.js 160 bytes [emitted] [minimized] (name: pageB)
asset pageC.js 160 bytes [emitted] [minimized] (name: pageC)
chunk (runtime: pageB) pageB.js (pageB) 25 bytes [entry] [rendered]
  > ./pageB pageB
  ./pageB.js 25 bytes [built] [code generated]
    [used exports unknown]
    cjs self exports reference ./pageB.js 1:0-14
    entry ./pageB pageB
chunk (runtime: pageC) pageC.js (pageC) 25 bytes [entry] [rendered]
  > ./pageC pageC
  ./pageC.js 25 bytes [built] [code generated]
    [used exports unknown]
    cjs self exports reference ./pageC.js 1:0-14
    entry ./pageC pageC
chunk (runtime: vendor2) vendor2.js (vendor2) 77 bytes [entry] [rendered]
  > ./vendor2 vendor2
  dependent modules 27 bytes [dependent] 1 module
  ./vendor2.js 50 bytes [built] [code generated]
    [used exports unknown]
    cjs require ./vendor2 ./pageA.js 3:0-20
    cjs self exports reference ./vendor2.js 1:0-14
    entry ./vendor2 vendor2
chunk (runtime: pageA) pageA.js (pageA) 147 bytes [entry] [rendered]
  > ./pageA pageA
  dependent modules 77 bytes [dependent] 2 modules
  ./pageA.js 70 bytes [built] [code generated]
    [used exports unknown]
    cjs self exports reference ./pageA.js 1:0-14
    entry ./pageA pageA
chunk (runtime: vendor1) vendor1.js (vendor1) 27 bytes [entry] [rendered]
  > ./vendor1 vendor1
  ./vendor1.js 27 bytes [built] [code generated]
    [used exports unknown]
    cjs require ./vendor1 ./pageA.js 2:0-20
    cjs self exports reference ./vendor1.js 1:0-14
    cjs require ./vendor1 ./vendor2.js 2:0-20
    entry ./vendor1 vendor1
webpack 5.0.0-beta.32 compiled successfully