This time I will show you how to implement webpack4 css packaging and compression, and what are the precautions to implement webpack4 css packaging and compression. The following is a practical case, let's take a look.
// webpack.config.js module.exports = { // webpack会根据mode进行对Js打包,development压缩,production下面自动压缩,亲测没有问题 mode: 'development' // production }But how to package the css separated from js? I have been looking for relevant articles for a day. Many of them say that webpack automatically supports CSS compression, and some say that a plug-in is required. Yes, that is, use a plug-in. optimize-css-assets-webpack-plugin
But be sure to read the Npm official website
install it first optimize-css-assets-webpack-plugin
const optimizeCss = require('optimize-css-assets-webpack-plugin'); module.exports = { ....., // plugins: [ new optimizeCss({ assetNameRegExp: /\.style\.css$/g, cssProcessor: require('cssnano'), cssProcessorOptions: { discardComments: { removeAll: true } }, canPrint: true }), ], // 这个还待研究,看字面意思是优化的意思 optimization: { // minimize: true, minimizer: [new optimizeCss({})], } }I also read the above code written by others , so you need to install a 'cssnano' package and then run the production environment packaging command. Oh, the css is indeed compressed, but looking at the js, it is not compressed. If the above code is not added, js is indeed the default Compressed, so I looked for a solution on the Internet. They said that webpack4 only needs to set the mode production, but now there is a problem. After compressing the css, the js will not be compressed, so I continued to install the previous plug-in for compressing Js with the intention of giving it a try. uglify-webpack-pluginFinally, I found that the problem was solved. It’s just my experience and it was a mistake. But if you have a good solution, please leave a message and make progress together to understand webpack thoroughly! I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website! Recommended reading:
Detailed explanation of using Node.js Buffer
How to use JS to call the local camera
The above is the detailed content of How to implement webpack4 css packaging and compression. For more information, please follow other related articles on the PHP Chinese website!

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.

The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.

Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.

JavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.

I built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing

This article demonstrates frontend integration with a backend secured by Permit, building a functional EdTech SaaS application using Next.js. The frontend fetches user permissions to control UI visibility and ensures API requests adhere to role-base

JavaScript is the core language of modern web development and is widely used for its diversity and flexibility. 1) Front-end development: build dynamic web pages and single-page applications through DOM operations and modern frameworks (such as React, Vue.js, Angular). 2) Server-side development: Node.js uses a non-blocking I/O model to handle high concurrency and real-time applications. 3) Mobile and desktop application development: cross-platform development is realized through ReactNative and Electron to improve development efficiency.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SublimeText3 Chinese version
Chinese version, very easy to use

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

Zend Studio 13.0.1
Powerful PHP integrated development environment

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

Atom editor mac version download
The most popular open source editor