🟨
JavaScript
Core JS concepts, ES6+, async patterns, closures
🔷
TypeScript
Types, interfaces, generics, advanced patterns
⚛️
React
Components, hooks, state management, performance
🅰️
Angular
Components, services, RxJS, dependency injection
🎭
Playwright
E2E testing, selectors, assertions, best practices
🔒
Security
XSS, CSRF, secure coding, secrets management
🔗
Shared Concepts
Cross-cutting frontend patterns and practices
📚
Fundamentals
Core concepts, error handling, logging, testing
🔍
ESLint
Linting, strict configuration, custom rules, auto-fix