Welcome to the Lab

This is my personal lab for Front-end Engineering patterns. Beyond just 'making it work,' I explore the trade-offs of performance, scalability, and accessibility. This project is a deep dive into future-proof design systems—not as basic content, but as a guide to building high-level, truly scalable front-ends.

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Knowledge Pillars

This lab is organized around the RADIO Framework—a structured approach to front-end system design interviews and architecture decisions. The documentation is divided into two main sections:

🎯 RADIO Framework Guide

A comprehensive system design framework covering:

• 17 UI Components: File Upload, Virtualized Lists, Rich Text Editor, Autocomplete, Modal, Data Table, Dropdown, Image Carousel, Poll Widget, Date/Time Picker, Toast, Tabs, Accordion, Tooltip, Pagination, Breadcrumbs, and Stepper
• 15 Complete Systems: News Feed, E-commerce, Video Streaming, Travel Booking, Dashboard, Real-Time Chat, Photo Sharing, Pinterest, Collaborative Apps, Email Client, Admin Panel, Social Network Profile, Music Streaming, and Job Board

Each component and system follows the RADIO structure (Requirements, Architecture, Data Model, Interface, Optimizations) with practical implementation examples, talking points, and common pitfalls.

📚 Technical Patterns

20+ pattern categories covering essential front-end engineering topics:

• Data Fetching: Caching, optimistic updates, pagination, request deduplication
• Real-Time Architecture: WebSockets, collaborative editing, presence systems
• Microfrontends: Architecture, CSS isolation, routing, shared state
• Core Optimizations: Asset optimization, pre-rendering, Core Web Vitals
• Accessibility: ARIA patterns, keyboard navigation, screen reader support
• State Management: Flux, Atoms, Signals, State Machines
• Security Patterns: CSP, SRI, CORS, iframe security
• Mobile & PWA: Service Workers, offline-first, push notifications
• And many more production-ready patterns with real-world examples.

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Core Principles

• Senior-Level Patterns: Focus on advanced patterns and trade-offs relevant to senior front-end engineers, avoiding basic tutorials.
• Practical Implementation: Every pattern includes real-world examples, TypeScript code snippets, and common pitfalls with solutions.
• RADIO Framework: All content follows the RADIO structure (Requirements → Architecture → Data Model → Interface → Optimizations) for systematic thinking.
• Production-Ready: Patterns are battle-tested and used by companies like Meta, Google, Airbnb, and Netflix.
• Performance & Accessibility: Every solution considers Core Web Vitals, accessibility (WCAG AA/AAA), and scalability from day one.