Frontend Framework Cursor Rules for Modern Web Development

What Are Frontend Framework Cursor Rules?

Frontend framework cursor rules provide AI with framework-specific knowledge to help you navigate, generate, and refactor code more effectively. These rules understand the unique patterns, syntax, and conventions of popular JavaScript frameworks, enabling smarter code assistance for modern web development.

Supported Frontend Frameworks

Framework-Specific Best Practices

React

• Component Patterns: Prefer functional components with hooks over class components. Use TypeScript for type safety and prop validation.
• State Management: Choose appropriate state solutions (useState, useReducer, Context, Zustand, Redux) based on complexity and scope.
• Performance: Implement memoization (React.memo, useMemo, useCallback) strategically to prevent unnecessary re-renders.
• Best Practices: Follow React conventions for component naming, file structure, and custom hook creation.

Vue

• Composition API: Use Vue 3 Composition API for better code organization and TypeScript support in complex components.
• Reactivity: Understand ref vs reactive for state management. Use computed for derived state and watch for side effects.
• Single-File Components: Organize components with script setup syntax for cleaner code and better performance.
• Best Practices: Follow Vue style guide for component naming, props validation, and event naming conventions.

Angular

• TypeScript First: Leverage TypeScript features including interfaces, enums, and decorators for robust applications.
• Dependency Injection: Use Angular's DI system properly for services, ensuring proper scope (root, component, module).
• RxJS Observables: Master reactive patterns for async operations, state management, and component communication.
• Best Practices: Follow Angular style guide for project structure, naming conventions, and component architecture.

Next.js

• Rendering Strategies: Choose between SSR, SSG, and ISR based on data freshness needs and performance requirements.
• Server Components: Use React Server Components for zero-bundle-size components that fetch data on the server.
• API Routes: Build backend endpoints directly in your Next.js app with proper error handling and middleware.
• Best Practices: Implement proper image optimization, use App Router for new projects, and leverage incremental adoption patterns.

Svelte

• Reactive Declarations: Use $: syntax for computed values and side effects. Keep reactivity simple and explicit.
• Stores: Implement writable, readable, and derived stores for state management across components.
• Component Optimization: Leverage Svelte's compiler optimizations by using proper binding syntax and avoiding unnecessary DOM updates.
• Best Practices: Keep components small, use props and events for communication, and leverage SvelteKit for full-stack applications.

Qwik

• Resumability: Structure code for optimal resumability. Minimize serialization and leverage progressive enhancement.
• Lazy Loading: Use $ prefix for lazy-loaded code. Break down components and functions for fine-grained loading.
• Server-Side Logic: Implement server$ functions for backend operations without creating API routes.
• Best Practices: Think in terms of user interactions and lazy load code per interaction rather than per route.

Astro

• Component Islands: Use interactive islands sparingly. Ship zero JavaScript for static content.
• Multi-Framework Support: Mix React, Vue, Svelte components as needed, but maintain consistency within features.
• Content Collections: Use Astro's content collections for type-safe content management and querying.
• Best Practices: Prioritize static generation, use partial hydration directives wisely, and optimize for Core Web Vitals.

Common Development Patterns

When working with frontend frameworks, apply these universal principles:

1. Component Architecture

   • Keep components focused on single responsibilities
   • Use composition over inheritance
   • Implement proper prop/event interfaces
   • Maintain clear component hierarchies

2. State Management

   • Use local state when possible
   • Lift state only when necessary
   • Consider state management libraries for complex apps
   • Avoid prop drilling with context or composition

3. Performance Optimization

   • Implement code splitting and lazy loading
   • Optimize bundle sizes and tree shaking
   • Use proper memoization techniques
   • Monitor and measure performance metrics

4. Testing Strategy

   • Write unit tests for business logic
   • Use component testing for UI components
   • Implement integration tests for user flows
   • Follow framework-specific testing best practices

Benefits

Frontend framework cursor rules provide significant advantages:

• Faster Development: Navigate complex component hierarchies and import structures efficiently
• Better Code Quality: Generate idiomatic code that follows framework conventions and best practices
• Reduced Learning Curve: Get contextual suggestions that teach framework patterns as you code
• Team Consistency: Maintain consistent coding patterns across your development team
• Framework Expertise: Access framework-specific knowledge without constant documentation lookup