Posts

Learn when to use DOMPurify versus manual validation for input sanitization. Real-world examples comparing DOM-based sanitization with regex and custom validation approaches.

Learn how to implement Content Security Policy in your JavaScript applications to prevent XSS attacks and secure your code. Practical examples with nonces, hashes, and framework-specific patterns.

Learn when your Node.js API actually needs CSRF protection and how to implement it correctly. Real-world examples of synchronizer tokens, custom middleware, and authentication patterns that work.

Learn how to protect your JavaScript applications from XSS attacks with practical code examples, security patterns, and real-world implementation strategies.

Discover the 5 most common N+1 query problems killing your app's performance and learn practical solutions with real code examples. From ORMs to GraphQL resolvers.

A practical comparison of Zod, Yup, and Joi schema validation libraries for TypeScript and JavaScript projects. Learn which validator to choose for your next project.

Learn the critical differences between optimistic and pessimistic locking strategies, with practical TypeScript examples for handling database concurrency in Node.js applications.

Learn how to implement and optimize database connection pooling in Node.js to handle thousands of concurrent requests without crashing your application.

Real production lessons with Prisma ORM that no tutorial warned me about. Migration strategies, connection pooling, N+1 queries, and the checklist I wish I had before launch.

Learn how service workers power modern PWAs with practical examples of caching strategies, background sync, and offline-first architecture.

Learn how to build peer-to-peer real-time chat applications using WebRTC Data Channels. Discover when to choose P2P over traditional WebSocket solutions.

A practical guide to choosing between Server-Sent Events and WebSockets for real-time communication in your JavaScript applications, with code examples and decision frameworks.