leonardomso / 33-js-concepts

- Cover all 13 proxy handler traps with detailed explanations - Include practical patterns: validation, observable data, access control, logging - Add revocable proxies and limitations sections (Map/Set internal slots, private fields) - Create 23 passing tests for all code examples - Add curated resources: 3 MDN refs, 4 articles, 3 videos - SEO optimized with question hook, featured snippet definition, internal linking