The subdocument of

Runtime

• Node
• The most widely used JavaScript runtime, allowing you to run JavaScript on the server side.
  Uses the V8 engine and is often used for server-side application development.
• Bun
• High-speed JavaScript runtime, specialized for running JavaScript and TypeScript.
  Built-in JavaScript bundling and testing tools to increase performance and improve the development experience.
• Deno
• A modern JavaScript/TypeScript runtime from Ryan Dahl, the creator of Node.js.
  Uses the V8 engine, offers built-in TypeScript support and a stricter security model.
• QuickJS
• A lightweight JavaScript engine, suitable for servers and embedded systems.
  It is small in size and provides very fast initialization, so it is often used in environments with large memory constraints.
• Web Browsers (Chrome, Firefox, Safari, Edge, etc.)
• Runs web applications with the JavaScript engine built into each browser (V8, SpiderMonkey, JavaScriptCore, etc.).
  The default runtime environment for executing JavaScript on the client side.

Package Manager

• (Node Package Manager)
• The default package manager for Node.js and the most widely used JavaScript package manager.
  You can use the npm registry to manage and distribute various open source libraries and tools.
• Yarn
• A package manager developed by Facebook that aims to provide faster speed and better stability than npm.
  The cache function and parallel installation method allow faster package installation.
• pnpm
• Package manager aimed at disk space efficiency, saving storage space when using the same package in multiple projects.
  Improves speed and performance by minimizing duplication of node_modules folders.
• Bun’s Package Manager
• Package manager built into the Bun runtime, making installation very fast.
  Built-in bundling and testing tools simplify the development environment.
• jspm
• This is a package manager that provides JavaScript packages in the form of ESM (ECMAScript Modules) and can be used directly in web applications.
  Generally, it is designed to load packages directly through the import statement.

Testing Tools

Framework-dependent Unit Testing Tool

• vitest for vite
• jest for React

E2E Testing Tool

• Cypress: A fast, user-friendly web application testing tool, ideal for JavaScript-centric projects.
• Nightwatch: Selenium-based testing framework, suitable for using an existing Selenium test environment.
• Playwright: A modern tool for testing advanced web applications with support for multiple browsers.
• Puppeteer: A tool specialized for Chromium-based browser automation, suitable for web scraping.
• Selenium: A traditional tool that supports a variety of browsers and languages, advantageous for large-scale testing environments.
• TestCafe: A tool that provides easy setup and support for various browsers, suitable for building a quick test environment.

Build Tools

Module Bundler

• webpack
• As a module bundler, it bundles not only JavaScript files but also various files such as CSS and images into one bundle.
  The code splitting, tree shaking, loader and plugin systems are powerful, making it suitable for complex applications.
  The configuration is flexible and powerful, but the setup can be a bit complicated.
• vite
• This is a build tool created by Evan You, the founder of Vue.js. It basically utilizes esbuild to provide fast build speed.
  Uses HMR during development to provide fast responsiveness, and uses ESM to load modules directly in the browser.
  It has excellent compatibility with various frameworks such as Vue, React, and Svelte, and is suitable for setting up a quick development environment.
• bun
• It is an all-in-one tool that supports bundling, testing, and package management.
  You can build JavaScript and TypeScript code very quickly, and it has built-in runtime and package manager functions.
  It aims to optimize performance and improve usability, and is especially advantageous for projects that require fast builds and bundling.
• rollup
• This is a bundler designed around ES6 modules, allowing you to optimize and bundle modules with simple settings.
  Excellent tree shaking, making it easy to obtain optimized code results.
  It is often used in library or module development, and is advantageous for reducing bundle size and increasing performance.
• esbuild
• A JavaScript build tool that provides very fast build speeds, written in the Go language.
  Supports not only bundling but also transpiling, and performs basic bundling tasks in an extremely short period of time.
  Supports code splitting and tree shaking, useful when you want to reduce the build time of your project.
• rsbuild
• Use Rspack to provide default settings and provide a simpler development environment. It includes basic settings and supports various frameworks such as React, Vue, and Svelte. Rsbuild provides hot module replacement (HMR) and optimization capabilities to improve user experience.
• rspack
• A high-performance JavaScript bundler written in Rust, offering a Webpack-like setup, plugin compatibility, and flexible configuration.
• parcel
• It is a zero-configuration build tool that provides a fast development environment and is very simple to use.
  It simplifies initial setup by automatically setting build settings according to file type.
  HMR (Hot Module Replacement) is supported so you can quickly check results during development, which is advantageous for rapid prototyping.

Build tool other than Module Bundler

• Snowpack
• This is a build tool developed using ESM (ECMAScript Modules) without bundling, and only files are built immediately when code changes.
  Fast initial loading speed and immediate updates are possible, providing quick feedback.
  It is advantageous in the early stages of a project or when using a specific file structure, but Vite is currently being used more.

Compiler

• babel
• swc
• tsc for

ETC

Grammar Extends

• jsx

  – required react
  – optional vue extends vnode

Code Management

• ESLint
• Prettier

CSS Management

• purecss
• openprops
• unocss