History

Tobias Koppers b66143f706 Merge tag 'v4.30.0' into next 4.30.0		2019-05-09 21:34:28 +02:00
..
README.md	Merge tag 'v4.30.0' into next	2019-05-09 21:34:28 +02:00
a.js	…
build.js	…
example.js	spelling: verify	2018-02-26 02:50:43 +00:00
template.md	chore(examples): fix exmaples template syntax	2019-04-08 19:26:44 +01:00

README.md

example.js

var a = require("./a");

// get module id
var aId = require.resolve("./a.js");

// clear module in require.cache
delete require.cache[aId];

// require module again, it should be reexecuted
var a2 = require("./a");

// verify it
if(a == a2) throw new Error("Cache clear failed :(");

a.js

module.exports = Math.random();

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 module cache
/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// the startup function
/******/ 	function startup() {
/******/ 		// Load entry module and return exports
/******/ 		return __webpack_require__(0);
/******/ 	};
/******/
/******/ 	// run startup
/******/ 	return startup();
/******/ })
/************************************************************************/

/******/ ([
/* 0 */
/*!********************!*\
  !*** ./example.js ***!
  \********************/
/*! other exports [maybe provided (runtime-defined)] [no usage info] */
/*! runtime requirements: __webpack_require____webpack_require__.c,  */
/***/ (function(__unusedmodule, __unusedexports, __webpack_require__) {

var a = __webpack_require__(/*! ./a */ 1);

// get module id
var aId = /*require.resolve*/(/*! ./a.js */ 1);

// clear module in require.cache
delete __webpack_require__.c[aId];

// require module again, it should be reexecuted
var a2 = __webpack_require__(/*! ./a */ 1);

// verify it
if(a == a2) throw new Error("Cache clear failed :(");

/***/ }),
/* 1 */
/*!**************!*\
  !*** ./a.js ***!
  \**************/
/*! other exports [maybe provided (runtime-defined)] [no usage info] */
/*! runtime requirements: module */
/***/ (function(module) {

module.exports = Math.random();

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

Info

Unoptimized

Hash: 0a1b2c3d4e5f6a7b8c9d
Version: webpack 5.0.0-alpha.11
    Asset      Size  Chunks             Chunk Names
output.js  2.24 KiB     {0}  [emitted]  main
Entrypoint main = output.js
chunk {0} output.js (main) 313 bytes [entry] [rendered]
    > ./example.js main
 [0] ./example.js 282 bytes {0} [built]
     [used exports unknown]
     entry ./example.js main
 [1] ./a.js 31 bytes {0} [built]
     [used exports unknown]
     cjs require ./a [0] ./example.js 1:8-22
     require.resolve ./a.js [0] ./example.js 4:10-35
     cjs require ./a [0] ./example.js 10:9-23

Production mode

Hash: 0a1b2c3d4e5f6a7b8c9d
Version: webpack 5.0.0-alpha.11
    Asset       Size  Chunks             Chunk Names
output.js  333 bytes   {179}  [emitted]  main
Entrypoint main = output.js
chunk {179} output.js (main) 313 bytes [entry] [rendered]
    > ./example.js main
 [144] ./example.js 282 bytes {179} [built]
       entry ./example.js main
 [847] ./a.js 31 bytes {179} [built]
       cjs require ./a [144] ./example.js 1:8-22
       require.resolve ./a.js [144] ./example.js 4:10-35
       cjs require ./a [144] ./example.js 10:9-23