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lazy-streams

v1.0.2

Published

Librería funcional de evaluación perezosa en TypeScript

Downloads

129

Readme

📦 lazy-streams

Coverage

LazyStreams es una pequeña y poderosa librería escrita en TypeScript para trabajar con flujos de datos de manera perezosa (lazy) y funcional. Está diseñada para ser minimalista, expresiva y fácil de extender.

✅ Compatible con TypeScript 100%
✅ Inspirada en principios de programación funcional
✅ Permite trabajar con streams infinitos, finitos y asíncronos
✅ Operaciones como map, filter, reduce, flatMap, zip, groupBy, chunk, entre otras


🚀 Instalación

npm install lazy-streams

🧠 Ejemplo básico

import { LazyStream } from 'lazy-streams';

// Números naturales
const naturals = LazyStream.from();
console.log(naturals.take(5)); // [0, 1, 2, 3, 4]

// Cuadrados
const squares = naturals.map(n => n * n);
console.log(squares.take(5)); // [0, 1, 4, 9, 16]

// Pares filtrados
const evens = naturals.filter(n => n % 2 === 0);
console.log(evens.take(5)); // [0, 2, 4, 6, 8]

⛓️ Funcionalidades destacadas

  • from(start, step) — Stream infinito
  • fromArray(array) — Stream finito
  • map(fn), filter(fn), flatMap(fn)
  • reduce(fn, initialValue)
  • zip(stream2, combiner)
  • distinct(), skip(n), take(n), chunk(size)
  • groupBy(fn) para clasificaciones
  • forEachAsync(fn), takeAsync(n) para flujos asíncronos
  • fromAsyncSource(fn, count) para integraciones con APIs externas

💡 Ejemplo práctico

Consulta el archivo examples/basic.ts para ver cómo usar LazyStream en contextos reales.


🤝 Contribuciones

Esta librería es open source y recibe con gusto mejoras, issues o nuevas ideas de operadores.

  • ¿Tienes una mejora? ¡Haz un fork y abre un PR!
  • ¿Encontraste un bug o falta documentación? ¡Abre un issue!

LazyStreams es una invitación a explorar la belleza de los flujos infinitos de forma simple y elegante 💚


📄 Licencia

MIT © 2024 Facundo Morán