Awesome GitHub RepositoriesClass Instance to Plain Object Converters

class-transformer is a TypeScript library that converts plain JavaScript objects into typed class instances and back, using decorators to define transformation rules. It serves as a decorator-based object transformer, JSON deserialization library, and property transformation framework, enabling type-safe serialization and deserialization of class instances. The library distinguishes itself through comprehensive property filtering and mapping capabilities. It supports excluding properties by default, by prefix, by operation (serialization or deserialization), or by explicit marking, as well as

MobX State Tree is a structured, tree-based state management library for JavaScript applications that combines typed model definitions with reactive snapshots and patch-based change tracking. It provides a reactive state container with runtime and compile-time type safety, where application state is defined as a tree of typed models with collocated actions, computed views, and lifecycle hooks for predictable state mutations. The library is built around an action-centric mutation model that encapsulates all state changes within named functions that directly modify the tree, supported by genera

attrs is a Python library that automatically generates initialization, representation, equality, hashing, and ordering methods from declarative class attribute definitions. At its core, it provides a class decorator metaprogramming framework that intercepts class creation to rewrite the class body, producing dunder methods without manual boilerplate. The library includes a comprehensive attribute validation toolkit with built-in validators for type checks, range constraints, regex matching, length limits, and logical composition of validation rules. The library distinguishes itself through it

Esta librería proporciona un patrón estructural para construir componentes de interfaz de usuario utilizando clases y decoradores de ES6. Funciona como una librería de componentes de TypeScript que permite a los desarrolladores gestionar el estado y la lógica dentro del framework Vue definiendo componentes como clases en lugar de utilizar objetos de opciones estándar. El proyecto utiliza un decorador de TypeScript para traducir las propiedades y métodos de la clase al formato estándar requerido por el entorno de ejecución del framework. Este enfoque permite una arquitectura de componentes basada en clases que aprovecha TypeScript para mejorar la seguridad de tipos y la organización del código. El sistema convierte las definiciones basadas en clases en objetos JavaScript simples a través de la extracción de lógica basada en prototipos y el mapeo basado en decoradores. Además, sincroniza las actualizaciones de datos mapeando los miembros de la instancia de clase al sistema de estado reactivo del componente.

Orange3 is a visual data mining platform that provides an interactive canvas for building data analysis workflows without writing code. At its core, it offers a widget-based visual programming environment where users connect configurable components to perform data preprocessing, machine learning model training, statistical evaluation, and interactive visualization. The platform is built on NumPy-backed data tables with domain descriptors that define variable names, types, and roles, and includes a lazy SQL query proxy for working with database tables without loading all data into memory. The