Learn STIMULUS-JS with Real Code Examples
Updated Nov 22, 2025
Performance Notes
Tiny payload (<3KB gzipped)
Minimal runtime overhead
No virtual DOM diffing
DOM manipulation only where needed
Fast load times for server-rendered pages
Security Notes
Sanitize inputs in controllers
Avoid inline JavaScript injection
Validate user data on server
Use HTTPS
Limit DOM manipulation to controlled elements
Monitoring Analytics
Sentry for JS errors
Browser console logs
Hotwire logs for Turbo updates
Custom analytics hooks via controllers
Performance monitoring via Chrome DevTools
Code Quality
Use ESLint/Prettier
Organize controllers modularly
Keep targets explicit and unique
Test controller methods with Jest
Document actions and values