9.5 KiB
9.5 KiB
example.js
// use our loader
console.dir(require("./loader!./file"));
// use buildin css loader
console.dir(require("./test.css")); // default by extension
console.dir(require("!css-loader!./test.css")); // manual
file.js
exports.foo = "bar";
loader.js
module.exports = function(content) {
return "exports.answer = 42;\n" + content;
}
test.css
.some-class {
color: hotpink;
}
dist/output.js
/******/ (function(modules) { /* webpackBootstrap */ })
/******/ (function(modules) { // webpackBootstrap
/******/ // 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 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/";
/******/
/******/
/******/ // 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__) {
// use our loader
console.dir(__webpack_require__(/*! ./loader!./file */ 1));
// use buildin css loader
console.dir(__webpack_require__(/*! ./test.css */ 2)); // default by extension
console.dir(__webpack_require__(/*! css-loader!./test.css */ 2)); // manual
/***/ }),
/* 1 */
/*!*****************************!*\
!*** ./loader.js!./file.js ***!
\*****************************/
/*! no static exports found */
/***/ (function(module, exports) {
exports.answer = 42;
exports.foo = "bar";
/***/ }),
/* 2 */
/*!****************************************************************!*\
!*** (webpack)/node_modules/css-loader/dist/cjs.js!./test.css ***!
\****************************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {
exports = module.exports = __webpack_require__(/*! ../../node_modules/css-loader/dist/runtime/api.js */ 3)(false);
// Module
exports.push([module.i, ".some-class {\n\tcolor: hotpink;\n}\n", ""]);
/***/ }),
/* 3 */
/*!*************************************************************!*\
!*** (webpack)/node_modules/css-loader/dist/runtime/api.js ***!
\*************************************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
// css base code, injected by the css-loader
module.exports = function (useSourceMap) {
var list = []; // return the list of modules as css string
list.toString = function toString() {
return this.map(function (item) {
var content = cssWithMappingToString(item, useSourceMap);
if (item[2]) {
return '@media ' + item[2] + '{' + content + '}';
} else {
return content;
}
}).join('');
}; // import a list of modules into the list
list.i = function (modules, mediaQuery) {
if (typeof modules === 'string') {
modules = [[null, modules, '']];
}
var alreadyImportedModules = {};
for (var i = 0; i < this.length; i++) {
var id = this[i][0];
if (id != null) {
alreadyImportedModules[id] = true;
}
}
for (i = 0; i < modules.length; i++) {
var item = modules[i]; // skip already imported module
// this implementation is not 100% perfect for weird media query combinations
// when a module is imported multiple times with different media queries.
// I hope this will never occur (Hey this way we have smaller bundles)
if (item[0] == null || !alreadyImportedModules[item[0]]) {
if (mediaQuery && !item[2]) {
item[2] = mediaQuery;
} else if (mediaQuery) {
item[2] = '(' + item[2] + ') and (' + mediaQuery + ')';
}
list.push(item);
}
}
};
return list;
};
function cssWithMappingToString(item, useSourceMap) {
var content = item[1] || '';
var cssMapping = item[3];
if (!cssMapping) {
return content;
}
if (useSourceMap && typeof btoa === 'function') {
var sourceMapping = toComment(cssMapping);
var sourceURLs = cssMapping.sources.map(function (source) {
return '/*# sourceURL=' + cssMapping.sourceRoot + source + ' */';
});
return [content].concat(sourceURLs).concat([sourceMapping]).join('\n');
}
return [content].join('\n');
} // Adapted from convert-source-map (MIT)
function toComment(sourceMap) {
// eslint-disable-next-line no-undef
var base64 = btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap))));
var data = 'sourceMappingURL=data:application/json;charset=utf-8;base64,' + base64;
return '/*# ' + data + ' */';
}
/***/ })
/******/ ]);
Console output
Prints in node.js (enhanced-require example.js) and in browser:
{ answer: 42, foo: 'bar' }
{ foobar: 1234 }
{ foobar: 1234 }
Info
Unoptimized
Hash: 0a1b2c3d4e5f6a7b8c9d
Version: webpack 4.29.6
Asset Size Chunks Chunk Names
output.js 7.34 KiB 0 [emitted] main
Entrypoint main = output.js
chunk {0} output.js (main) 2.76 KiB [entry] [rendered]
> ./example.js main
[0] ./example.js 204 bytes {0} [built]
single entry ./example.js main
[1] ./loader.js!./file.js 41 bytes {0} [built]
cjs require ./loader!./file [0] ./example.js 2:12-38
[2] (webpack)/node_modules/css-loader/dist/cjs.js!./test.css 179 bytes {0} [built]
cjs require ./test.css [0] ./example.js 5:12-33
cjs require !css-loader!./test.css [0] ./example.js 6:12-45
+ 1 hidden module
Production mode
Hash: 0a1b2c3d4e5f6a7b8c9d
Version: webpack 4.29.6
Asset Size Chunks Chunk Names
output.js 1.88 KiB 0 [emitted] main
Entrypoint main = output.js
chunk {0} output.js (main) 2.76 KiB [entry] [rendered]
> ./example.js main
[0] (webpack)/node_modules/css-loader/dist/cjs.js!./test.css 179 bytes {0} [built]
cjs require ./test.css [1] ./example.js 5:12-33
cjs require !css-loader!./test.css [1] ./example.js 6:12-45
[1] ./example.js 204 bytes {0} [built]
single entry ./example.js main
[2] ./loader.js!./file.js 41 bytes {0} [built]
cjs require ./loader!./file [1] ./example.js 2:12-38
+ 1 hidden module