423 lines
15 KiB
Markdown
423 lines
15 KiB
Markdown
# example.js
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This example illustrates how to filter the ContextModule results of `import()` statements. only `.js` files that don't
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end in `.noimport.js` within the `templates` folder will be bundled.
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```javascript
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async function getTemplate(templateName) {
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try {
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let template = await import(
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/* webpackInclude: /\.js$/ */
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/* webpackExclude: /\.noimport\.js$/ */
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`./templates/${templateName}`
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);
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console.log(template);
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} catch(err) {
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console.error(err);
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return new Error(err);
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}
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}
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getTemplate("foo");
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getTemplate("bar");
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getTemplate("baz");
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getTemplate("foo.noimport");
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getTemplate("bar.noimport");
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getTemplate("baz.noimport");
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```
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# templates/
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- foo.js
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- foo.noimport.js
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- baz.js
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- foo.noimport.js
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- bar.js
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- foo.noimport.js
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All templates are of this pattern:
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```javascript
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var foo = "foo";
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export default foo;
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```
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# dist/output.js
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<details><summary><code>/******/ (function(modules) { /* webpackBootstrap */ })</code></summary>
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```javascript
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/******/ (function(modules) { // webpackBootstrap
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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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/******/
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/******/
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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(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(Object.prototype.hasOwnProperty.call(moreModules, moduleId)) {
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/******/ modules[moduleId] = moreModules[moduleId];
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/******/ }
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/******/ }
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/******/ if(parentJsonpFunction) parentJsonpFunction(data);
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/******/
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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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/******/ };
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/******/
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/******/
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/******/ // The module cache
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/******/ var installedModules = {};
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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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/******/ 3: 0
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/******/ };
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/******/
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/******/
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/******/
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/******/ // script path function
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/******/ function jsonpScriptSrc(chunkId) {
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/******/ return __webpack_require__.p + "" + chunkId + ".output.js"
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/******/ }
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/******/
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/******/ // The require function
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/******/ function __webpack_require__(moduleId) {
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/******/
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/******/ // Check if module is in cache
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/******/ if(installedModules[moduleId]) {
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/******/ return installedModules[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 = installedModules[moduleId] = {
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/******/ i: moduleId,
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/******/ l: false,
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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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/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
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/******/
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/******/ // Flag the module as loaded
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/******/ module.l = true;
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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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/******/ // This file contains only the entry chunk.
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/******/ // The chunk loading function for additional chunks
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/******/ __webpack_require__.e = function requireEnsure(chunkId) {
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/******/ var promises = [];
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/******/
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/******/
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/******/ // JSONP chunk loading for javascript
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/******/
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/******/ var installedChunkData = installedChunks[chunkId];
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/******/ if(installedChunkData !== 0) { // 0 means "already installed".
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/******/
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/******/ // a Promise means "currently loading".
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/******/ if(installedChunkData) {
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/******/ promises.push(installedChunkData[2]);
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/******/ } else {
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/******/ // setup Promise in chunk cache
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/******/ var promise = new Promise(function(resolve, reject) {
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/******/ installedChunkData = installedChunks[chunkId] = [resolve, reject];
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/******/ });
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/******/ promises.push(installedChunkData[2] = promise);
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/******/
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/******/ // start chunk loading
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/******/ var script = document.createElement('script');
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/******/ var onScriptComplete;
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/******/
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/******/ script.charset = 'utf-8';
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/******/ script.timeout = 120;
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/******/ if (__webpack_require__.nc) {
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/******/ script.setAttribute("nonce", __webpack_require__.nc);
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/******/ }
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/******/ script.src = jsonpScriptSrc(chunkId);
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/******/
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/******/ onScriptComplete = function (event) {
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/******/ // avoid mem leaks in IE.
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/******/ script.onerror = script.onload = null;
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/******/ clearTimeout(timeout);
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/******/ var chunk = installedChunks[chunkId];
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/******/ if(chunk !== 0) {
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/******/ if(chunk) {
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/******/ var errorType = event && (event.type === 'load' ? 'missing' : event.type);
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/******/ var realSrc = event && event.target && event.target.src;
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/******/ var error = new Error('Loading chunk ' + chunkId + ' failed.\n(' + errorType + ': ' + realSrc + ')');
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/******/ error.type = errorType;
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/******/ error.request = realSrc;
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/******/ chunk[1](error);
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/******/ }
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/******/ installedChunks[chunkId] = undefined;
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/******/ }
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/******/ };
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/******/ var timeout = setTimeout(function(){
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/******/ onScriptComplete({ type: 'timeout', target: script });
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/******/ }, 120000);
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/******/ script.onerror = script.onload = onScriptComplete;
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/******/ document.head.appendChild(script);
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/******/ }
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/******/ }
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/******/ return Promise.all(promises);
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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 = modules;
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/******/
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/******/ // expose the module cache
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/******/ __webpack_require__.c = installedModules;
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/******/
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/******/ // define getter function for harmony exports
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/******/ __webpack_require__.d = function(exports, name, getter) {
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/******/ if(!__webpack_require__.o(exports, name)) {
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/******/ Object.defineProperty(exports, name, { enumerable: true, get: getter });
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/******/ }
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/******/ };
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/******/
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/******/ // define __esModule on exports
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/******/ __webpack_require__.r = function(exports) {
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/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
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/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
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/******/ }
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/******/ Object.defineProperty(exports, '__esModule', { value: true });
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/******/ };
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/******/
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/******/ // create a fake namespace object
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/******/ // mode & 1: value is a module id, require it
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/******/ // mode & 2: merge all properties of value into the ns
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/******/ // mode & 4: return value when already ns object
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/******/ // mode & 8|1: behave like require
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/******/ __webpack_require__.t = function(value, mode) {
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/******/ if(mode & 1) value = __webpack_require__(value);
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/******/ if(mode & 8) return value;
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/******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
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/******/ var ns = Object.create(null);
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/******/ __webpack_require__.r(ns);
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/******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value });
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/******/ if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
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/******/ return ns;
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/******/ };
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/******/
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/******/ // getDefaultExport function for compatibility with non-harmony modules
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/******/ __webpack_require__.n = function(module) {
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/******/ var getter = module && module.__esModule ?
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/******/ function getDefault() { return module['default']; } :
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/******/ function getModuleExports() { return 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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/******/ // Object.prototype.hasOwnProperty.call
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/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
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/******/
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/******/ // __webpack_public_path__
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/******/ __webpack_require__.p = "dist/";
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/******/
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/******/ // on error function for async loading
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/******/ __webpack_require__.oe = function(err) { console.error(err); throw err; };
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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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/******/ jsonpArray = jsonpArray.slice();
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/******/ for(var i = 0; i < jsonpArray.length; i++) webpackJsonpCallback(jsonpArray[i]);
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/******/ var parentJsonpFunction = oldJsonpFunction;
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/******/
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/******/
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/******/ // Load entry module and return exports
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/******/ return __webpack_require__(__webpack_require__.s = 3);
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/******/ })
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/************************************************************************/
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```
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</details>
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```javascript
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/******/ ([
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/* 0 */,
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/* 1 */,
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/* 2 */,
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/* 3 */
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/*!********************!*\
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!*** ./example.js ***!
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\********************/
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/*! no static exports found */
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/***/ (function(module, exports, __webpack_require__) {
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async function getTemplate(templateName) {
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try {
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let template = await __webpack_require__(4)(`./${templateName}`);
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console.log(template);
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} catch(err) {
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console.error(err);
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return new Error(err);
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}
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}
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getTemplate("foo");
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getTemplate("bar");
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getTemplate("baz");
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getTemplate("foo.noimport");
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getTemplate("bar.noimport");
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getTemplate("baz.noimport");
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/***/ }),
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/* 4 */
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/*!******************************************************************************************!*\
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!*** ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ***!
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\******************************************************************************************/
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/*! no static exports found */
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/***/ (function(module, exports, __webpack_require__) {
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var map = {
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"./bar": [
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0,
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0
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],
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"./bar.js": [
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0,
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0
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],
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"./baz": [
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1,
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1
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],
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"./baz.js": [
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1,
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1
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],
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"./foo": [
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2,
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2
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],
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"./foo.js": [
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2,
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2
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]
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};
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function webpackAsyncContext(req) {
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if(!__webpack_require__.o(map, req)) {
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return Promise.resolve().then(function() {
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var e = new Error("Cannot find module '" + req + "'");
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e.code = 'MODULE_NOT_FOUND';
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throw e;
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});
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}
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var ids = map[req], id = ids[0];
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return __webpack_require__.e(ids[1]).then(function() {
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return __webpack_require__(id);
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});
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}
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webpackAsyncContext.keys = function webpackAsyncContextKeys() {
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return Object.keys(map);
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};
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webpackAsyncContext.id = 4;
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module.exports = webpackAsyncContext;
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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 4.29.6
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Asset Size Chunks Chunk Names
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0.output.js 433 bytes 0 [emitted]
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1.output.js 442 bytes 1 [emitted]
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2.output.js 436 bytes 2 [emitted]
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output.js 9.45 KiB 3 [emitted] main
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Entrypoint main = output.js
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chunk {0} 0.output.js 38 bytes <{3}> [rendered]
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> ./bar [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./bar
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> ./bar.js [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./bar.js
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[0] ./templates/bar.js 38 bytes {0} [optional] [built]
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[exports: default]
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context element ./bar [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./bar
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context element ./bar.js [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./bar.js
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chunk {1} 1.output.js 38 bytes <{3}> [rendered]
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> ./baz [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./baz
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> ./baz.js [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./baz.js
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[1] ./templates/baz.js 38 bytes {1} [optional] [built]
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[exports: default]
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context element ./baz [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./baz
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context element ./baz.js [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./baz.js
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chunk {2} 2.output.js 38 bytes <{3}> [rendered]
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> ./foo [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./foo
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> ./foo.js [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./foo.js
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[2] ./templates/foo.js 38 bytes {2} [optional] [built]
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[exports: default]
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context element ./foo [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./foo
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context element ./foo.js [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./foo.js
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chunk {3} output.js (main) 597 bytes >{0}< >{1}< >{2}< [entry] [rendered]
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> ./example.js main
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[3] ./example.js 437 bytes {3} [built]
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single entry ./example.js main
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[4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object 160 bytes {3} [optional] [built]
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import() context lazy ./templates [3] ./example.js 3:23-7:3
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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 4.29.6
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Asset Size Chunks Chunk Names
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0.output.js 113 bytes 0 [emitted]
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1.output.js 114 bytes 1 [emitted]
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2.output.js 115 bytes 2 [emitted]
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output.js 2.52 KiB 3 [emitted] main
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Entrypoint main = output.js
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chunk {0} 0.output.js 38 bytes <{3}> [rendered]
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> ./bar [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./bar
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> ./bar.js [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./bar.js
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[0] ./templates/bar.js 38 bytes {0} [optional] [built]
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[exports: default]
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context element ./bar [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./bar
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context element ./bar.js [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./bar.js
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chunk {1} 1.output.js 38 bytes <{3}> [rendered]
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> ./baz [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./baz
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> ./baz.js [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./baz.js
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[1] ./templates/baz.js 38 bytes {1} [optional] [built]
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[exports: default]
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context element ./baz [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./baz
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context element ./baz.js [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./baz.js
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chunk {2} 2.output.js 38 bytes <{3}> [rendered]
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> ./foo [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./foo
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> ./foo.js [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./foo.js
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[2] ./templates/foo.js 38 bytes {2} [optional] [built]
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[exports: default]
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context element ./foo [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./foo
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context element ./foo.js [4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object ./foo.js
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chunk {3} output.js (main) 597 bytes >{0}< >{1}< >{2}< [entry] [rendered]
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> ./example.js main
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[3] ./example.js 437 bytes {3} [built]
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single entry ./example.js main
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[4] ./templates lazy ^\.\/.*$ include: \.js$ exclude: \.noimport\.js$ namespace object 160 bytes {3} [optional] [built]
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import() context lazy ./templates [3] ./example.js 3:23-7:3
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```
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