jQuery is a mature, widely-used JavaScript library for DOM manipulation, event handling, AJAX, animations, and cross-browser utilities. The repository contains the full source code (ES modules in `src/`), a comprehensive test suite (QUnit, iframe tests, bundler smoke tests), and build tooling (Rollup, Babel). It is not an application but a library that can be consumed via CommonJS, AMD, ESM, or a global script. The architecture is modular: core utilities, selector engine, event system, deferred/promises, CSS hooks, effects, and AJAX are all separate modules that are compiled into a single distributable. The codebase demonstrates high craftsmanship with well-tested, isolated patterns (e.g., `Callbacks`, `Deferred`, `Data` cache) and extensive cross-browser handling. While some legacy IE workarounds remain, the library has modernized with ES modules, Trusted Types support, and a factory pattern for non-browser environments. The repository is actively maintained with frequent commits, CI workflows for multiple browsers, and a clear release process.
Cheerio is a fast, flexible, and elegant library for parsing and manipulating HTML and XML on the server side (Node.js). It provides a jQuery-like API for traversing and manipulating the DOM of parsed documents, designed for web scraping, data extraction, and HTML transformation tasks. The library abstracts away the underlying parser (htmlparser2 for speed, parse5 for standards compliance) via a factory pattern, offering a consistent Cheerio API regardless of parser choice. Key entry points include the main `load` function that converts HTML strings or buffers into a Cheerio instance, static methods like `html`, `xml`, `text`, and `parseHTML`, and utility functions for CSS handling, form serialization, and attribute manipulation. External dependencies include cheerio-select for CSS selector parsing, domutils for core DOM traversal, and optional HTTP fetching via undici for live URL parsing.
SurveyJS Form Library is a production-grade, multi-framework JavaScript library for creating, rendering, and managing dynamic forms and surveys entirely in the browser. The core package (`survey-core`) provides a comprehensive model layer including serialization via decorators (`Serializer`), a custom expression engine for conditional logic and validation, a static analysis linter for survey JSON definitions, input masking, drag-and-drop, theming (CSS variables with adapters for Bootstrap/MUI/shadcn), and even a real-time collaboration plugin with presence and value sync. UI packages deliver identical rendering across React, Angular, Vue 3, and vanilla JS (Knockout/jQuery). The architecture is a monorepo: the core is framework-agnostic, while UI packages bind to their respective component models. Data flows from JSON definition → deserialization into model → user interaction → validation → result output (also JSON). The test suite is extensive (unit, E2E, accessibility, visual regression) and the library is actively maintained with weekly releases.
This repository is a Laravel package that provides a server-side processing engine for jQuery DataTables. It handles AJAX requests from DataTables, performing searching, sorting, pagination, and column formatting on data sourced from Eloquent ORM, Query Builder, or in-memory collections. The architecture uses a factory pattern (DataTables class) to select the appropriate engine (EloquentDataTable, QueryDataTable, CollectionDataTable, PaginatorDataTable, ApiResourceDataTable) based on the source type. Each engine extends the abstract DataTableAbstract class, which defines the common workflow: count total records, apply global and column filters, order, paginate, fetch results, process rows (add/edit columns, format), and render a JSON response. The package integrates deeply with Laravel's service container and configuration system, and includes support for eager-loaded relations, complex query counting, and optional full-text search via Laravel Scout. The codebase is well-structured, extensively tested, and follows modern PHP practices.
This repository is Taro, a large-scale cross-platform application framework that compiles a single React/Vue/Solid codebase to multiple targets: WeChat/Alipay/Baidu/ByteDance/QQ/JD mini-programs, H5 web applications, React Native, and HarmonyOS. It is a monorepo containing over 100 packages coordinated via pnpm workspaces. The architecture spans CLI tooling (`@tarojs/cli`), build runners (Webpack5 and Vite with platform-specific loaders), a runtime layer that simulates DOM/BOM for non-browser targets (`@tarojs/runtime`), platform adapters that map component and API specifications for each target (e.g., `@tarojs/platform-weapp`, `@tarojs/platform-harmony`), and Rust-based SWC plugins for compile-time JSX optimization (`crates/swc_plugin_compile_mode`). The project is actively maintained with a large community (over 37K stars), frequent commits, and thorough testing across packages, including unit, integration, snapshot, and e2e tests. However, some platform-specific stubs (e.g., `temporarilyNotSupport` for Harmony) and multiple parallel Harmony implementations indicate medium technical drift in certain areas.
RuoYi is a production‑ready Java rapid‑development framework for building enterprise back‑office management systems (CMS, CRM, OA, etc.). It is a monolithic Spring Boot application using Apache Shiro for authentication/authorization, MyBatis for persistence, Thymeleaf for server‑side rendering, and a jQuery/Bootstrap frontend with numerous third‑party plugins. The system provides a complete RBAC module (user, role, department, menu management), dictionary and configuration management, operation and login auditing, online user monitoring, Quartz‑based scheduled tasks, and a Velocity‑powered code generator that produces full CRUD modules from database tables. Additional features include dynamic data source switching, XSS/CSRF protection, captcha, file upload/download, Excel import/export with annotation‑driven mapping, and a demo suite for UI components. The architecture follows a modular Maven structure (admin, common, framework, system, generator, quartz) with a shared common module providing utilities, annotations, and exception hierarchy. While the framework is mature and widely adopted, its frontend stack (jQuery, Bootstrap 3‑era plugins) and use of Shiro represent technical drift compared to modern SPA or Spring Security approaches. The codebase is well‑organized and contains several reusable components, but is tightly coupled to its own conventions and lacks microservice readiness.
elFinder is a mature, full-featured web-based file manager with a client-server architecture. The client is built on jQuery and jQuery UI, providing a rich interface for file operations (browse, upload, download, copy, move, rename, delete, search, preview, edit, archive, etc.) with extensive internationalization and plugin support. The server-side is a PHP connector that abstracts storage backends via a volume driver pattern, supporting local filesystem, FTP, SFTP, MySQL, Dropbox, Google Drive, OneDrive, Box, and more. The codebase demonstrates strong engineering practices: a command pattern for file operations, a plugin system for both client and server, a session abstraction, and a UI widget factory. However, it carries legacy dependencies (jQuery UI, PHP 5.2+) and some cloud drivers have incomplete implementations or API drift. Overall, it is a well-crafted, production-ready application with several reusable patterns.
Calx.js is a spreadsheet calculation engine that brings Excel-like functionality to web applications. It parses and evaluates formulas, manages workbooks/sheets/cells with dependency tracking, and provides both a programmatic API and jQuery plugin interface. The architecture features a modular Workbook→Sheet→Cell hierarchy with modern Chevrotain-based formula parsing, FormulaJS integration for function implementations, and efficient recalculation through dependency tracking. Key entry points include the main Calx class and jQuery plugin wrapper, with data flows proceeding from HTML attribute parsing through formula evaluation to DOM updates.
Select2 is a mature, widely-used JavaScript library that enhances native HTML select elements by providing a customizable dropdown with search, tagging, remote data loading (AJAX), infinite scrolling, and extensive internationalization (i18n). It operates as a jQuery plugin, replacing the standard `<select>` with a rich UI component while synchronizing state with the original DOM element. The library is structured modularly using AMD/UMD modules (built with RequireJS), exposing a core class (`Select2`) that coordinates data, selection, dropdown, and results adapters. It employs a decorator pattern (`Utils.Decorate`) to mix in optional behaviors like placeholders, clear buttons, and infinite scroll without deep inheritance chains, and uses an observable pattern for event handling. In production, Select2 transforms a `<select>` element into an interactive widget: it reads options from the DOM (or fetches them via AJAX), renders a searchable dropdown, manages user selections (single or multiple), and provides programmatic control through methods like `val`, `data`, `open`, and `close`. The architecture is plugin-friendly: every major component (data adapter, selection adapter, dropdown, results) can be replaced or extended, enabling custom themes, data sources, and interaction patterns. Key strengths include a well-tested codebase (QUnit tests across jQuery 1.x–4.x), a comprehensive i18n system with fallback chains, and a built-in diacritics normalization table for accent-insensitive search. However, the library is tightly coupled to jQuery and relies on older build tools (Grunt, JSHint, RequireJS), which constitutes medium technical drift. Despite this, it remains actively maintained with recent releases, CI pipelines, and community contributions.
fullPage.js is a vanilla JavaScript library for creating full-screen scrolling websites (one-page sites) with vertical/horizontal snap scrolling, sections, and slides. The codebase uses a modular ES6 architecture with separate concerns for scroll handling, mouse/touch input, keyboard navigation, state management, and DOM manipulation. It exports a main class from src/js/fullpage.js with initialization via src/js/app.js. The library manages DOM structure through CSS classes (.fp-section, .fp-slide, .active, .fp-loaded) and maintains global state in src/js/common/state.js. It supports optional jQuery integration via src/js/jquery-adaptor.js and includes polyfills for IE11 compatibility. The build system uses Rollup for bundling and Gulp for asset processing, producing distribution files in dist/. The library features lazy loading for media, responsive breakpoints, and extensive callback hooks for lifecycle management.
Steam Economy Enhancer is a single-file userscript (~4,500 lines) that runs via Violentmonkey on Steam Community pages. It detects whether the current URL is an inventory, market, market-listing, or trade-offer page and initializes a matching enhancement module. On the inventory it injects bulk-sell/card-sell/crate-sell buttons, duplicate detection, gem conversion, booster pack unpacking, per-item price labels, and quick-sell panels populated from Steam's order book. On the market it identifies overpriced/underpriced listings against a price heuristic, supports mass removal and auto-relisting, adds client-side search/sort/select-all controls, and aggregates total listing values. On trade offers it renders per-party item counts and price summaries. All server actions are executed through Steam's internal AJAX endpoints using the user's own session cookie. Under the hood, the script is organized as an IIFE with region annotations. Every external call flows through a hand-built serialized request queue with adaptive rate limiting (300ms baseline, 1s for market endpoints, 5s after errors) and a circuit breaker that halts after repeated HTTP 400/401/403/404/405/429 responses. Long-running operations (selling, relisting, grinding, pricing) are run through async.queue pipelines with concurrency 1, jittered delays, and 30-45s backoff retries. A rolling session cache built on localforage keeps price histories and order books across tab restarts while rotating through six bounded IndexedDB buckets to prevent unbounded growth. The fee engine precisely mirrors Steam's market fee math, including the December 2025 rule changes for 11 currencies that switched from floor to round and introduced a $0.01 minimum per fee. The code is heavily coupled to Steam's page globals (g_rgAssets, g_ActiveInventory, g_rgWalletInfo) and DOM structure, so the script cannot run outside steamcommunity.com. However, several embedded patterns are self-contained and instructive: the request queue, the rolling session cache, the fee calculation engine, and the pure-function price heuristic. Maintenance is healthy: the code incorporates December 2025 Steam rule changes, uses modern library versions, and CI runs ESLint on every push. There are no unit tests—the only automated check is linting.
Layui is a classic web UI component library written in pure HTML, CSS, and JavaScript. It provides a comprehensive set of 20+ interactive components including tables, forms, modals, date pickers, menus, trees, and more. The library follows a modular architecture with ES modules, a core component base class, and a consistent lifecycle (render/reload/destroy). It includes built-in internationalization, a resource loader, a simple front-end router, and a template engine (laytpl, though deprecated). The codebase is actively developed (v3.0.0-alpha.3) with modern build tooling (Rollup, PostCSS, ESLint) but retains some legacy patterns and a dependency on jQuery. The component base class and popup system are well-architected and reusable, while some modules (table, treeTable) are large and monolithic. Testing is incomplete, with unit tests marked as placeholder and visual tests requiring manual execution.
metismenu is a mature, widely-used jQuery plugin that provides collapsible, nested menu functionality. It transforms nested unordered lists into expandable/collapsible menus with support for ARIA accessibility, custom trigger elements, toggle behavior, and transition animations. The plugin is implemented as a single ES6 class (MetisMenu) with a jQuery plugin interface, and is built using Rollup, tested with Vitest/jsdom, and includes TypeScript definitions. It relies on jQuery as a peer dependency (version >=4.0.0) and provides optional CSS for icon frameworks (Bootstrap, FontAwesome, Ionicons). The codebase is well-structured, follows a clean plugin pattern, and includes comprehensive documentation and demo pages. While it is a straightforward library, its craftsmanship is professional, with good test coverage and modern build tooling.
AntMgr is an ASP.NET Core MVC admin management framework designed for rapid development of backend systems. It provides built-in user, role, menu, and permission management with button-level authorization, along with a CRUD code generator and a SQL query tool. The architecture follows a layered pattern: Web (mgr.core) -> ServicesModel -> ViewModels -> Repository -> Infrastructure, using Autofac for DI, AutoMapper for object mapping, and a custom ORM (AntData.ORM) supporting MySQL and SQL Server. The frontend relies on jQuery, Bootstrap 3, and Vue.js 1.0 with numerous third-party plugins for UI components. Key features include role-based access control with hierarchical roles and god-mode bypass, a code generation engine using DotLiquid templates that produces full CRUD modules (Controller, Repository, ViewModel, ServiceModel, View), Excel import/export via Npoi.Mapper, and an integrated SQL editor with field hints. The system emphasizes convention over configuration, allowing developers to quickly scaffold admin pages with minimal setup. While functionally complete and actively maintained (last commit 2026-03-16), the codebase carries significant technical debt from outdated frontend libraries (Vue 1.0, Bootstrap 3, numerous jQuery plugins from 2014-2016) and a custom ORM that may lack community support. The hardcoded god-mode users and direct SQL execution tool also pose security risks. The code generation engine and Excel helper are the most reusable components, demonstrating practical patterns for meta-programming and data I/O.
This repository contains the source code for SimpRead (简悦), a browser extension for Chrome and Firefox that provides an immersive reading mode, focus mode, annotation, and later-reading capabilities. The extension extracts article content from web pages, applies customizable typography and themes, and supports exporting to numerous services including Markdown, PDF, EPUB, Kindle, email, and cloud storage (Dropbox, WebDAV, Notion, Evernote, etc.). It includes a rules-based site adaptation engine (defined in `website_list.json`) to handle hundreds of specific websites, a plugin system for user-installed scripts, and a notice/focus system to manage reading sessions. The architecture follows a typical browser extension pattern: a background script (`background.js`) manages storage, OAuth, context menus, and cross-tab communication; content scripts (`contentscripts.js`) inject reading and focus modes into pages; and multiple options pages (`options/`) provide configuration, custom CSS, site management, and notice center. The UI is built with React 0.14.8 and a custom Material Design UI kit (`mduikit`), with heavy use of jQuery for DOM manipulation. State is managed through a central storage service (`storage.js`) that provides reactive reads/writes and versioned migration. External integrations are implemented as service classes with OAuth flows, and a message-action pattern coordinates between isolated script contexts. The codebase demonstrates a strong feature set but suffers from significant technical debt: very old dependencies (webpack 1, React 0.14), deprecated lifecycle patterns, extensive global DOM manipulation mixed with React, hardcoded CDN links and provider secrets, and comments indicating hacky browser workarounds. The site adaptation rule set is large but fragile, relying on exact CSS selectors and inline JavaScript that break when websites change. Despite these issues, the project provides a wealth of reusable patterns, particularly in its custom UI components, notification system, and storage abstraction.
GitHub Hovercard is a browser extension that enhances GitHub with rich hovercards for user profiles, repositories, issues, pull requests, comments, and commits. When hovering over a link on GitHub, it fetches data from the GitHub REST API and displays a tooltip with relevant details such as follower counts, star counts, README previews, issue status, and commit information. The extension also supports authenticated actions like following/unfollowing users and starring/unstarring repositories via a user-supplied access token. The extension is implemented as a monolithic content script that runs on all GitHub pages. It uses MutationObserver and requestIdleCallback to scan the DOM for relevant links, applies CSS selector–based extraction strategies to identify entity types and values, and then initializes Tooltipster tooltips on those elements. Data is fetched via jQuery AJAX and cached per entity type. The UI is rendered using Mustache templates with inline emoji and Octicons. The project includes separate extension packages for Chrome, Firefox, Edge, and Safari, each duplicating core files like jQuery, Mustache, Tooltipster, and the main hovercard script. A userscript variant is also provided. While the extension is functionally complete and has a loyal user base, the codebase exhibits significant technical drift and maintenance risks. Dependencies are outdated (jQuery 3.1.0, Tooltipster 4.0.0rc23), GitHub DOM selectors are fragile and likely to break with UI updates, API preview headers may be deprecated, and the same source files are duplicated across multiple extension directories without a shared build system. No tests are present, and the project appears to have received no recent commits, making it a candidate for forking or modernization.
This repository is a distribution of **MDBootstrap (Material Design for Bootstrap) Free version 4.20.0**, a front-end UI component library built on top of Bootstrap 4. It provides a curated set of CSS classes, JavaScript plugins (jQuery-based), and SCSS sources for creating Material Design–inspired web interfaces. The library includes standard components (buttons, cards, modals, navbars, forms, tables, etc.), utility classes, addons (DataTables integration, rating, animations), and vendor dependencies (Bootstrap 4.6.0, jQuery 3.6.0, Popper.js 1.14.7). No application-specific logic, server-side code, or data pipelines are present. The codebase is a monolithic, pre-compiled UI toolkit intended for direct consumption in web projects. While still functional, it is significantly outdated: it depends on Bootstrap 4 and jQuery, the README explicitly recommends migrating to Bootstrap 5, and the JavaScript patterns lack modern module federation or tree-shaking. The repository is maintained only in the sense that it receives occasional updates (last commit March 2026), but it is effectively in long-term support mode for legacy users.
This repository is a PHP-based monolithic web application called '引流宝' (Traffic Treasure), designed for private-domain traffic acquisition and marketing within the Chinese WeChat ecosystem. It provides a suite of tools including dynamic QR code management for WeChat groups (活码), customer service codes, channel codes, short URLs, Taobao affiliate intermediate pages, share cards (WeChat sharing), coupon key distribution, and a plugin system for extensions like WeChat external link bridging and anti-blocking. The backend is implemented in raw PHP without frameworks, using a custom PDO wrapper for MySQL. The frontend uses jQuery and Bootstrap. The application is feature-complete and actively used (2005 stars), but the codebase suffers from severe code duplication, weak security practices (MD5 hashing, SQL injection points, hardcoded secrets), outdated vendored libraries (PHPMailer, Chart.js, TailwindCSS, jsQR), and no automated testing. It represents a functional but poorly engineered tool that would require significant refactoring for production safety or reuse outside its specific marketing domain.