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1 Introduction to webpack 1.1 what is a webpack Webpack is a front-end resource building tool, a static module bundler. In the view of webpack, all resource files (js/json/css/img/less /...) of the front end will be processed as modules. It will perform static analysis according to the dependency of the module and package the corresponding st ...

It's not easy to refuse to pay a compliment preface In essence, webpack is a static module packaging tool for modern JavaScript applications. When webpack processes an application, it will internally build a dependency graph from one or more entry points, and then combine each module required in your project into one or more bundles, wh ...

In addition to packaging applications, webpack can also be used to package JavaScript libraries. The following applies to library authors who want to simplify the packaging strategy. Create a library Suppose we are writing a small library called my math, which contains addition and subtraction. The basic project structure may be as fol ...

Polyfills npm install --save @babel/polyfill Then, import it into our main bundle file: import '@babel/polyfill' console.log(Array.from([1, 2, 3], x => x + x)) Note that this approach gives priority to correctness rather than bundle size. In order to be safe and reliable, polyfill/shim must run before all other codes and need to be loa ...

Code segmentation So far, the output of build JS contains javaScript and Css code, and the dependent modules used in the project will also be packaged into build JS JS is huge. It's loading build JS will take a lot of time, resulting in slow page loading. Therefore, the output files need to be reasonably divided to generate multiple multi type ...

webpack install Before installation, initialize the project to generate package JSON file npm init -y npm init Next, install webpack and webpack cli npm i webpack webpack-cli --save Configure command line In package The startup command is configured in the scripts field of the JSON file "scripts":{ "test": "echo \"Error: no test ...

demandMobile terminal adaptationpc side adaptation (within a certain screen range)Implementation principleUsing amfe flexible and postcss px2rem dependency packages, PX is automatically converted to REM after the project is compiled, and the font size value of html will be changed dynamically according to the screen sizeIf you want to understan ...

Webpack Dev ServerIt integrates the functions of automatic compilation and automatic refresh of browser. The webpack dev server does not write to any output files after compilation, but keeps the bundle files in memory and then serves them to the server.yarn add webpack-dev-server --devconst path = require("path"); const { CleanWebpackPlugin } ...

webpack function: handle code compression confusion, browser js compatibility and performance optimization webpack installation process in the project 1, NPM I webpack webpack cli - g / / global installation of webpack (required) npm i Webpack@5.42.1 Webpack- cli@4.7.2 -D / / partially install Webpack to the project (required) 2, webpac ...

Scaffold vueCli vueCli facilitates the rapid establishment of vue development environment and corresponding webpack configuration. The pre dependencies are node, npm and webpack. Manual use of webpack requires manual introduction of various loader s and plugin s, and handling the compatibility of versions; // View version node -v，npm -v，web ...