Posts

Master the art of canceling async operations with AbortController. Learn practical patterns for fetch requests, timeouts, cleanup, and building responsive applications.

A deep dive into JSON Web Tokens (JWT) — what they are, how they work, and why they've become the backbone of secure web authentication.

A fun, beginner-friendly guide to understanding CSS specificity with practical examples and easy-to-remember rules.

When to use ===, when == helps, and the gotchas to remember.

A fun, story-style walkthrough of what really happens when you type a URL: DNS, TCP, TLS/SSL, HTTP, caching, rendering, CORS, cookies, CDNs, and more.

A hands-on, example-packed guide to storing and refreshing JWTs safely in frontend apps: in-memory access tokens, HttpOnly refresh cookies, rotation, CORS/CSRF, and real code you can ship.

A fun and practical guide to understanding closures in JavaScript, with real-world use cases like caching, rate limiting, event handling, and more.

A fun and practical guide to understanding when to use imperative vs declarative approaches in JS/TS, with lots of real-world examples.

A fun, practical guide to JavaScript promise methods — all, allSettled, race, any, resolve/reject, and finally — with examples you'll actually use.

A comprehensive guide to implementing secure wallet-based authentication using Ethereum signatures in Express.js applications, with real-world use cases and security considerations

Learn how to implement Domain-Driven Design in a Next.js application using TypeScript.

Learn why using GET inside Next.js Server Actions creates unnecessary round trips, how to fetch data efficiently with React Server Components, and when to use Server Actions the right way — with fun analogies and diagrams.