React Production Engineering

Complete methodology for building production-grade React applications. Covers architecture decisions, component design, state management, performance optimization, testing, and deployment — not just API reference, but engineering methodology with decision frameworks, templates, and scoring systems.

Phase 1: Architecture Assessment

Quick Health Check (score /16)

• Component tree depth < 6 levels (+2)
• No prop drilling past 2 levels (+2)
• Bundle size < 200KB gzipped (+2)
• LCP < 2.5s on 4G (+2)
• Test coverage > 70% on business logic (+2)
• Zero any types in production code (+2)
• No direct DOM manipulation (+2)
• Consistent error boundaries (+2)

Architecture Brief