Learn PREACT with Real Code Examples
Updated Nov 22, 2025
Performance Notes
Ultra-small bundle (~3KB)
Fast rendering via virtual DOM
Supports server-side rendering
Efficient memory usage
Optimized diffing algorithm
Security Notes
Sanitize dynamic content in JSX
Follow general XSS best practices
Avoid passing untrusted HTML via dangerouslySetInnerHTML
Use HTTPS for API calls
Validate user input before state updates
Monitoring Analytics
Sentry for JS errors
Web performance monitoring
Custom logging for state changes
Web Vitals tracking
Third-party analytics integration
Code Quality
Use TypeScript with Preact
Unit test components
Lint JSX and JS
Follow hooks best practices
Optimize render performance