# Coding Style Guide Code Style and Structure: - Write concise, technical TypeScript code with accurate examples - Use functional and declarative programming patterns; avoid classes - Prefer iteration and modularization over code duplication - Use descriptive variable names with auxiliary verbs (e.g., isLoading, hasError) - Structure files: exported component, subcomponents, helpers, static content, types Naming Conventions: - Use lowercase with dashes for directories (e.g., components/auth-wizard) - Favor named exports for components TypeScript Usage: - Use TypeScript for all code; prefer interfaces over types - Avoid enums; use maps instead - Use functional components with TypeScript interfaces - Use Zod for form validation Syntax and Formatting: - Use the "function" keyword for pure functions - Avoid unnecessary curly braces in conditionals; use concise syntax for simple statements - Use declarative JSX Error Handling and Validation: - Prioritize error handling: handle errors and edge cases early - Use early returns and guard clauses - Implement proper error logging and user-friendly messages - Use Zod for form validation - Model expected errors as return values in Server Actions - Use error boundaries for unexpected errors UI and Styling: - Use Shadcn UI, Radix, and Tailwind Aria for components and styling - Implement responsive design with Tailwind CSS; use a desktop-first approach Performance Optimization: - Minimize 'useEffect', and 'setState'; favor React Remix Components (RSC) - Wrap client components in Suspense with fallback - Use dynamic loading for non-critical components - Optimize images: use WebP format, include size data, implement lazy loading Key Conventions: - Use proper URL search parameter state management - Optimize Web Vitals (LCP, CLS, FID) - Limit 'use client' When React Server Components (RSC) are used: - Favor server components and Next.js SSR - Use only for Web API access in small components - Avoid for data fetching or state management Follow React Remix docs for Data Fetching, Rendering, and Routing Follow Next.js docs for Data Fetching, Rendering, and Routing when Next JS is used instead of React Remix