Awesome GitHub RepositoriesMap Data Structure Manipulation

Immutable.js is a library of persistent data structures and a functional state management toolkit. It provides a collection of immutable objects and arrays that prevent direct mutation to ensure predictable state management in JavaScript applications. The library utilizes structural sharing to efficiently create new versions of data without full copying and implements lazy sequence processing to chain data transformations that execute only when values are requested. It also supports batch mutation processing, allowing multiple changes to be applied to a temporary mutable copy before returning

Hutool is a standard utility library for Java application development designed to simplify common programming tasks and reduce boilerplate code. It provides a comprehensive collection of reusable helper classes and static utilities to streamline development across the Java ecosystem. The project implements a wide array of specialized toolkits, including systems for cryptography and security, network communication via HTTP and JSON clients, and the processing of office documents and file system IO. It also features a concurrency and scheduling framework for managing asynchronous tasks and recu

Discord.js is a Node.js library and framework for interacting with the Discord API. It provides a comprehensive set of wrappers for REST and WebSocket connections, enabling the development of automated server accounts and real-time chat applications. The project distinguishes itself through a distributed bot sharding system that splits a single bot instance across multiple processes to handle high server counts and large-scale workloads. It also includes a specialized voice API wrapper for managing audio streams and voice channel connectivity. The library covers broad capability areas includ

This project is a comprehensive programming tutorial and technical guide focused on the Java 8 language specification. It provides educational resources for implementing functional programming patterns, utilizing modern language syntax, and adopting updated API standards. The guide covers the transition to functional programming through the use of lambda expressions, method and constructor references, and functional interfaces. It also details the use of default interface methods to extend logic without breaking existing classes and the implementation of repeatable annotations. Additional co

Presto is a distributed SQL query engine designed for high-performance analytical processing across heterogeneous data sources. It functions as a data federation platform and massively parallel processing engine, allowing users to execute interactive queries against diverse storage systems without requiring data migration. By mapping remote metadata and structures to a unified relational namespace, it enables seamless cross-platform analysis through a standard SQL interface. The engine distinguishes itself through a pluggable connector architecture and a shared-nothing distributed processing

Sass is a stylesheet compilation engine and CSS preprocessor that extends standard CSS with variables, nested rules, mixins, and functions. It functions as a comprehensive design system tool, enabling developers to organize complex stylesheets into modular, reusable components while automating the transformation of advanced syntax into browser-compatible CSS. The project distinguishes itself through its sophisticated build automation and language-level extensibility. It provides robust support for programmatic style generation, including conditional logic, iterative loops, and unit-aware math

This tool is a command-line processor designed for querying, updating, and transforming structured data files. It functions as a versatile engine for manipulating YAML, JSON, TOML, and XML documents, allowing users to perform complex operations directly from the terminal. By utilizing a path-based expression language, it enables precise navigation and modification of data structures within configuration files and infrastructure-as-code workflows. What distinguishes this tool is its ability to perform in-place document mutations while preserving original formatting, comments, and metadata. It

This project is a markdown knowledge base used to maintain a curated collection of concise technical notes and write-ups across various programming languages and tools. It serves as a searchable personal reference library for documenting technical discoveries and software development patterns. The system implements a learning in public workflow, transforming markdown-based content storage into a static site. It utilizes directory-based routing to map folder structures to URL paths and employs schema-driven type generation to ensure data consistency across the knowledge base. The codebase cov

This project is a framework for the efficient serialization and deserialization of data structures. It provides a unified, macro-based interface that automates the conversion of complex internal objects into standardized formats and reconstructs them from raw input streams or buffers. By leveraging compile-time code generation, the library minimizes manual implementation overhead while ensuring consistent logic across diverse data types. The framework distinguishes itself through a format-agnostic data model and a visitor-based parsing architecture that decouples data structures from specific

mitmproxy2swagger is a tool that transforms captured mitmproxy network traffic into structured OpenAPI schemas for reverse-engineering REST APIs. It functions as an OpenAPI schema converter and network traffic documentation utility, extracting API endpoints and data structures from captured network packets to create formal technical references. The tool enables the reconstruction of undocumented APIs by converting intercepted HTTP request and response patterns into specifications. It supports merging multiple traffic capture files into a single schema to incrementally expand an API map and ut

ORB_SLAM3 is a visual-inertial SLAM library designed for real-time simultaneous localization and mapping. It provides a framework for tracking camera movement and building 3D maps of environments using monocular, stereo, or RGB-D cameras combined with inertial sensors. The system features a multi-map fusion engine capable of merging separate spatial sessions into a single seamless representation of an environment. It includes specialized processing for wide-angle and fisheye lenses to expand the visual field of view for spatial tracking. The library covers a broad range of spatial intelligen

This repository is a collection of practical code snippets and implementation patterns for Flutter and Dart. It serves as a comprehensive guide and reference for asynchronous programming, state management patterns, and UI component design. The project provides advanced language reference material covering generics, reflection, factory constructors, and null-aware operators. It also includes specific utilities for manipulating Dart collections, such as helper methods for transforming and filtering maps, lists, and iterables. The coverage extends to high-level capabilities including asynchrono

Hazelcast is a distributed data platform that combines an in-memory data grid with a stream processing engine to support real-time analytics and event-driven applications. It functions as a partitioned, distributed key-value store that replicates data across cluster nodes to provide low-latency access and high availability. The platform also serves as a distributed SQL query engine, allowing users to execute standard SQL statements against both in-memory datasets and external data sources. What distinguishes Hazelcast is its use of a distributed consensus subsystem to maintain strongly consis

VINS-Mono es un sistema de odometría visual-inercial monocular y un framework SLAM de cierre de bucle. Funciona como un estimador de estado en tiempo real que fusiona datos de una sola cámara y una unidad de medición inercial para determinar la posición y orientación de un robot. El proyecto incluye un optimizador no lineal para robótica y herramientas para la calibración de sensores. El sistema se distingue por la calibración de sensores en línea, que determina automáticamente las extrínsecas espaciales y los desfases temporales entre la cámara y la unidad inercial durante la operación. También incorpora corrección de distorsión de obturador rodante (rolling shutter) para eliminar distorsiones de imagen causadas por los tiempos de lectura del sensor. El proyecto cubre una amplia gama de capacidades de estimación espacial, incluyendo optimización de ventana deslizante, acoplamiento visual-inercial estrecho y optimización de grafo de poses para la corrección de deriva. Proporciona mecanismos para la detección de cierre de bucle, gestión de mapas espaciales y recuperación ante fallos de seguimiento. El proyecto admite el despliegue en contenedores para garantizar compilaciones y comportamientos consistentes en diferentes sistemas operativos.

Carp is a statically typed Lisp compiler that compiles Lisp-like syntax directly to C source code, enabling seamless integration with existing C libraries and low-level system programming. It manages memory deterministically at compile time using ownership tracking and linear types, eliminating garbage collection pauses and runtime overhead while ensuring type safety through an inferred static type system. The language distinguishes itself through compile-time macro expansion and metaprogramming capabilities, allowing code generation and transformation before final binary output. It enforces

GraphQL-Ruby es una biblioteca de Ruby para construir APIs de GraphQL con un esquema fuertemente tipado y un motor de ejecución de consultas dedicado. Proporciona un framework integral para mapear objetos de la aplicación a un sistema de tipos formal, permitiendo la obtención estructurada de datos mediante resolvers definidos. El proyecto destaca por sus mecanismos avanzados de rendimiento y entrega, incluyendo un data loader para batching y caché que evita patrones de consulta N+1. Admite la entrega de datos de alto rendimiento mediante streaming de respuestas incremental, respuestas de consulta diferidas y obtención de datos en paralelo usando fibers. Además, proporciona soporte nativo para convenciones de Relay, incluyendo helpers especializados para conexiones e identificación de objetos. La biblioteca cubre una amplia superficie de gestión de API, con control de acceso granular, versionado de esquemas para mantener la compatibilidad hacia atrás y actualizaciones en tiempo real mediante suscripciones. También incluye herramientas de gestión de tráfico para proteger los recursos del servidor, como la limitación de complejidad de consultas y de tasa de peticiones. El desarrollo y la observabilidad están respaldados por herramientas de análisis de AST, trazado de ejecución y utilidades de prueba especializadas para la verificación de carga por lotes.

esm is an ECMAScript module loader and JavaScript module path resolver. It functions as a runtime system that executes standard JavaScript modules without requiring a separate build or bundling process. The project provides a compatibility bridge for CommonJS interoperability, wrapping CommonJS exports into synthetic modules to allow imports and exports between different module systems. It includes a dynamic module cache that stores resolved instances in memory to prevent redundant file system reads and repeated execution. The system handles runtime path resolution and file extension detecti

JDA es un envoltorio de Java para la API de Discord, proporcionando un framework para construir agentes automatizados e integrar aplicaciones con la plataforma de chat. Funciona tanto como cliente de API REST para gestionar entidades de servidor como cliente de gateway que mantiene conexiones WebSocket persistentes para actualizaciones de estado en tiempo real. La biblioteca cuenta con un módulo completo de API de voz para gestionar streaming de audio, conectividad de canales de voz e integración de soundboard. También incluye un kit de herramientas especializado para diseño de UI interactiva, permitiendo la creación de comandos slash, botones, menús de selección y formularios de entrada modales. En términos generales, el proyecto cubre la moderación comunitaria mediante gestión automatizada de reglas, administración de servidores mediante configuración de canales y roles, y gestión de tráfico mediante sharding para distribuir cargas de eventos. También proporciona utilidades para la creación de contenido multimedia enriquecido y la recuperación detallada de perfiles de miembros.

ExcelDataReader es una librería de C# utilizada para extraer datos y metadatos de hojas de cálculo de Microsoft Excel y archivos CSV. Funciona como un analizador de libros de trabajo que convierte el contenido de la hoja de cálculo en conjuntos de datos estructurados para acceso e iteración programática. El proyecto incluye un extractor de metadatos especializado para recuperar detalles a nivel de celda, como formatos de número, estilos, alturas de fila, anchos de columna y rangos de celdas combinadas. También proporciona un procesador de streams para analizar archivos CSV de texto plano con codificación personalizable y detección de separadores. La librería soporta el estándar OpenXML para archivos de hoja de cálculo modernos y utiliza análisis basado en stream e iteración de filas basada en cursor para recorrer los libros de trabajo. Estas capacidades permiten la conversión de libros de trabajo de múltiples hojas en tablas de datos relacionales.

Memgraph is an in-memory, distributed graph database designed for high-performance labeled property graph management. It utilizes a Cypher query engine for declarative data retrieval and manipulation, providing a scalable knowledge graph backend that integrates vector search and graph traversals. The system distinguishes itself as a real-time graph analytics platform, employing native C++ and CUDA implementations to execute complex network analysis and dynamic community detection on streaming data. It provides specialized support for AI integration, including GraphRAG capabilities, the constr