Learn RUBY with Real Code Examples
Updated Nov 17, 2025
Architecture
Source code executed by Ruby interpreter (MRI, JRuby, or TruffleRuby)
Optional JIT compilation in modern versions
Garbage-collected runtime
Rails framework follows MVC architecture
Rendering Model
Source code executed by MRI/YARV interpreter
Optional JIT in modern Ruby
Dynamic typing and garbage collection
Metaprogramming runtime
Architectural Patterns
MVC with Rails
Service objects and POROs
Event-driven background jobs
Domain-driven design for web apps
Real World Architectures
Rails monoliths
Service-oriented Rails apps
Background processing with Sidekiq
Web APIs for SaaS platforms
Design Principles
Simplicity and productivity
Everything is an object
Convention over configuration
Readable and maintainable code
Scalability Guide
Use caching (Redis, Memcached)
Background job queues (Sidekiq/Resque)
Horizontal scaling with multiple app servers
Database optimizations (indexes, sharding)
Migration Guide
Upgrade Ruby version safely
Update Rails major versions
Migrate from older gems to modern alternatives
Refactor legacy code for performance and readability