It is necessary to directly embed the imported js file into the html file to reduce the number of file requests and achieve better performance. The htmlWebpackPlugin official does not provide configuration to complete this function, but due to the extensive demand, the official provides a processing method
https://github.com/jantimon/html-webpack-plugin/blob/master/examples/inline/template.jade
The specific code corresponding to html is:
<script>
<%for(varfileinhtmlWebpackPlugin.files.chunks){%>
<%=
compilation.assets[htmlWebpackPlugin.files.chunks[file].entry.substr(htmlWebpackPlugin.files.publicPath.length)].source()
%>
<%}%>
</script>
Insert this piece of code into the head of the html file you need to improve performance, I simply write an HTML file here
<!doctype html>
<html>
<head>
<title><%= htmlWebpackPlugin.options.title%></title>
<script>
<%for(var file in htmlWebpackPlugin.files.chunks){ %>
<%=
compilation.assets[htmlWebpackPlugin.files.chunks[file].entry.substr(htmlWebpackPlugin.files.publicPath.length)].source()
%>
<%}%>
</script>
</head>
<body>
<!--I am a line comment-->
</body>
</html>
The idea is to first prepare a script tag in html, and then traverse the chunks in the configuration file through the <%%> template, get the relative path of the corresponding js file, and obtain it through compilation.assets['relative path'].source() The content of the file, the following is the content of the html file packaged by webpack, the js file is successfully obtained and embedded into the html file:
<!doctype html>
<html>
<head>
<title>index.html</title>
<script>
/******/ (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, {
/******/ configurable: false,
/******/ enumerable: true,
/******/ get: getter
/******/ });
/******/ }
/******/ };
/******/
/******/ // define __esModule on exports
/******/ __webpack_require__.r = function(exports) {
/******/ Object.defineProperty(exports, '__esModule', { value: true });
/******/ };
/******/
/******/ // 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 = "www.cnd";
/******/
/******/
/******/ // Load entry module and return exports
/******/ return __webpack_require__(__webpack_require__.s = "./src/script/main.js");
/******/ })
/************************************************************************/
/******/ ({
/***/ "./src/script/main.js":
/*!****************************!*\
!*** ./src/script/main.js ***!
\****************************/
/*! no static exports found */
/***/ (function(module, exports) {
eval("function hello(){\r\n \r\n}\n\n//# sourceURL=webpack:///./src/script/main.js?");
/***/ })
/******/ });
/******/ (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, {
/******/ configurable: false,
/******/ enumerable: true,
/******/ get: getter
/******/ });
/******/ }
/******/ };
/******/
/******/ // define __esModule on exports
/******/ __webpack_require__.r = function(exports) {
/******/ Object.defineProperty(exports, '__esModule', { value: true });
/******/ };
/******/
/******/ // 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 = "www.cnd";
/******/
/******/
/******/ // Load entry module and return exports
/******/ return __webpack_require__(__webpack_require__.s = "./src/script/a.js");
/******/ })
/************************************************************************/
/******/ ({
/***/ "./src/script/a.js":
/*!*************************!*\
!*** ./src/script/a.js ***!
\*************************/
/*! no static exports found */
/***/ (function(module, exports) {
eval("function a(){}\n\n//# sourceURL=webpack:///./src/script/a.js?");
/***/ })
/******/ });
</script>
</head>
<body>
<!--I am a line comment-->
</body>
</html>
The specific code corresponding to html is,
The idea is to prepare a script tag in html, and then traverse the chunks in the configuration file through the <%%> template, get the relative path of the corresponding js file, and obtain it through compilation.assets['relative path'].source() the content of the file
Insert this piece of code into the head of the html file you need to improve performance, I simply write an HTML file here
The idea is to prepare a script tag in html, and then traverse the chunks in the configuration file through the <%%> template, get the relative path of the corresponding js file, and obtain it through compilation.assets['relative path'].source() the content of the file