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retainr-js

v0.1.1

Published

Una librería para implementar sistemas de repaso espaciado (spaced repetition) en JavaScript

Readme

Retainr.js

Una librería para implementar sistemas de repaso espaciado (spaced repetition) en JavaScript.

Instalación

npm install retainr-js

Uso

import { Card, SM2Scheduler } from 'retainr-js';

// Crear una tarjeta de vocabulario
class VocabularyCard extends Card {
  constructor(word, translation, example) {
    super();
    this.metadata = {
      word,
      translation,
      example,
      lastReviewQuality: null
    };
  }

  getWord() {
    return this.metadata.word;
  }

  getTranslation() {
    return this.metadata.translation;
  }

  getExample() {
    return this.metadata.example;
  }
}

// Crear un scheduler
const scheduler = new SM2Scheduler();

// Crear una tarjeta de vocabulario
const card = new VocabularyCard(
  'serendipity',
  'serendipia',
  'Finding this book was pure serendipity.'
);

// Revisar la tarjeta
const currentDate = new Date();
scheduler.calculateNextInterval(card, 5, currentDate); // Calidad 5 (perfecto)

// Obtener tarjetas pendientes de revisión
const cardsToReview = scheduler.getCardsToReview([card], currentDate);

Características

  • Implementación del algoritmo SuperMemo 2 (SM2)
  • Sistema de tarjetas flexible con metadata
  • Serialización/deserialización de tarjetas
  • Cálculo automático de intervalos de repaso

API

Card

class Card {
  constructor();
  getState();
  getLastReview();
  getNextReview();
  getReviewCount();
  getMetadata();
  updateReview(quality, currentDate, nextDate, metadata, resetCount);
  serialize();
  deserialize(serializedState);
}

SM2Scheduler

class SM2Scheduler extends Scheduler {
  calculateNextInterval(card, quality, currentDate);
  getCardsToReview(cards, currentDate);
}

Licencia

MIT