This time I will bring you how to deal with large files packaged by webpack and how to deal with large files packaged by webpack. What are the precautions?The following is a practical case, let's take a look.
Optimization comparison:
Before optimization: index.html introduces a main.js file with a size of more than 2M.
After optimization: index.html introduces main.js, commons.js, charts.js, and other.js. In order to achieve the purpose of dividing main.js equally. Each file is controlled within 300k. (If you are happy, 100k is no problem)
A bunch of libraries and tools used:
vue, webpack, babel, highcharts, echarts, jquery, html2canvas****** I will omit some m codes here
Problem:
After using webpack in the development environment, I found a single js file 5m.
The production environment is reduced to 2m with the help of vue-cli's webpack configuration.
Solution:
Search various solutions: require.ensure, require dependency, multiple entries, commonsChunkPlugin****Here are some solutions to save effort
There are too many solutions similar to the ones below, but they all fail to achieve the expected results
entry:{ main:'xxx.js', chunks:['c1', 'c2'], commons:['jquery', 'highcharts', 'echarts','d3', 'xxxxx.js'] } plugins:{ new commonsChunkPlugin({ name:'commons', minChunks:2 }) }
Optimal solution:
entry:{ main:'xxx.js' } plugins:{ new commonsChunkPlugin({ name:'commons', minChunks:function(module){ // 下边return参考的vue-cli配置 // any required modules inside node_modules are extracted to vendor return ( module.resource && /\.js$/.test(module.resource) && module.resource.indexOf( path.join(dirname, '../node_modules') ) === 0 ) } }) , // 以下才是关键 new commonsChunkPlugin({ name:'charts', chunks:['commons'] minChunks:function(module){ return ( module.resource && /\.js$/.test(module.resource) && module.resource.indexOf( path.join(dirname, '../node_modules') ) === 0 && ['jquery.js', 'highcharts.js','echarts'].indexOf( module.resource.substr(module.resource.lastIndexOf('/')+1).toLowerCase() ) != -1 ) } }) // 如果愿意,可以再new 一个commonsChunkPlugin }
I believe you have mastered it after reading the case in this article Method, for more exciting information, please pay attention to other related articles on the php Chinese website!
Recommended reading:
Detailed explanation of the steps to use the select built-in component of vue
Avoid re-rendering when using React
The above is the detailed content of How to deal with large files packaged by webpack. For more information, please follow other related articles on the PHP Chinese website!

JavaScript originated in 1995 and was created by Brandon Ike, and realized the language into C. 1.C language provides high performance and system-level programming capabilities for JavaScript. 2. JavaScript's memory management and performance optimization rely on C language. 3. The cross-platform feature of C language helps JavaScript run efficiently on different operating systems.

JavaScript runs in browsers and Node.js environments and relies on the JavaScript engine to parse and execute code. 1) Generate abstract syntax tree (AST) in the parsing stage; 2) convert AST into bytecode or machine code in the compilation stage; 3) execute the compiled code in the execution stage.

The future trends of Python and JavaScript include: 1. Python will consolidate its position in the fields of scientific computing and AI, 2. JavaScript will promote the development of web technology, 3. Cross-platform development will become a hot topic, and 4. Performance optimization will be the focus. Both will continue to expand application scenarios in their respective fields and make more breakthroughs in performance.

Both Python and JavaScript's choices in development environments are important. 1) Python's development environment includes PyCharm, JupyterNotebook and Anaconda, which are suitable for data science and rapid prototyping. 2) The development environment of JavaScript includes Node.js, VSCode and Webpack, which are suitable for front-end and back-end development. Choosing the right tools according to project needs can improve development efficiency and project success rate.

Yes, the engine core of JavaScript is written in C. 1) The C language provides efficient performance and underlying control, which is suitable for the development of JavaScript engine. 2) Taking the V8 engine as an example, its core is written in C, combining the efficiency and object-oriented characteristics of C. 3) The working principle of the JavaScript engine includes parsing, compiling and execution, and the C language plays a key role in these processes.

JavaScript is at the heart of modern websites because it enhances the interactivity and dynamicity of web pages. 1) It allows to change content without refreshing the page, 2) manipulate web pages through DOMAPI, 3) support complex interactive effects such as animation and drag-and-drop, 4) optimize performance and best practices to improve user experience.

C and JavaScript achieve interoperability through WebAssembly. 1) C code is compiled into WebAssembly module and introduced into JavaScript environment to enhance computing power. 2) In game development, C handles physics engines and graphics rendering, and JavaScript is responsible for game logic and user interface.

JavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.


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

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

SublimeText3 English version
Recommended: Win version, supports code prompts!

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

SublimeText3 Chinese version
Chinese version, very easy to use

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
