Learn POLYMER with Real Code Examples

Shadow DOM improves rendering isolation

Use lazy loading for large component sets

Keep templates small for faster hydration

Prefer one-way binding when possible

Minimize observers to avoid expensive updates

Shadow DOM prevents style injection

Avoid unsafe HTML binding

Validate custom element attributes

Use HTTPS for resource loading

Keep dependencies updated

Use Sentry or LogRocket for error tracking

Monitor component lifecycle events

Debug Shadow DOM via DevTools

Track performance with Lighthouse

Analyze user interactions

Use ESLint and Prettier

Follow Web Components standards

Write unit tests with WCT

Prefer LitElement for improved DX

Document components with Storybook