Learn LIT with Real Code Examples
Updated Nov 22, 2025
Performance Notes
Efficient DOM updates with lit-html
Only updates properties that change
Minimal JavaScript overhead
Leverages browser-native APIs
Works well with lazy-loading components
Security Notes
Avoid inserting untrusted HTML in templates
Use lit-html's template binding for safety
Shadow DOM prevents style/DOM leakage
Sanitize dynamic content
Follow general Web Component security best practices
Monitoring Analytics
Browser performance monitoring
Sentry for JS errors
Web vitals measurement
Custom logging in components
Third-party analytics integrations
Code Quality
TypeScript with Lit
Unit test components
Lint templates and CSS
Use consistent component naming
Optimize reactive updates