Tutorials and deep dives on web development, networking and GenAI — written with interactive diagrams. 17 articles so far.
FeaturedMaster JavaScript Promises from scratch — lifecycle, .then()/.catch()/.finally(), all static methods (all, allSettled, race, any), real-world examples, visual diagrams, and hands-on assignments. Written from 4+ years of full-stack development experience.
17 min read
Master JavaScript operators — arithmetic, comparison, logical, and assignment — with real-world examples, visual diagrams, truth tables, and hands-on assignments. A practical guide from 4+ years of full-stack development.
19 min read
Learn JavaScript variables (var, let, const) and data types with real-life analogies, clear code examples, comparison diagrams, and hands-on assignments. A practical guide written from 4+ years of full-stack development experience.
15 min read
A comprehensive guide to Next.js 16 features including Partial Pre-Rendering (PPR), React Compiler, Turbopack, and production-grade optimizations. Learn with diagrams and code examples.
7 min read
Learn Git from scratch—what it is, why developers use it, core concepts (repository, commit, branch, HEAD), and essential commands. A practical guide with diagrams and a real workflow.
9 min read
Understand how the internet's phonebook works. A simple guide to A, AAAA, CNAME, MX, and TXT records.
5 min read
Learn the basics of cURL, why developers love it, and how to make your first API requests from the command line.
6 min read
Understand what really happens between your prompt and ChatGPT's answer — tokenization, embeddings, positional encoding, self-attention, and transformers — explained with a mobile shop analogy, runnable Python, and diagrams.
12 min read
A practical guide to Retrieval-Augmented Generation — chunking, embeddings, vector search, and prompt assembly — with runnable Python, architecture diagrams, and the mistakes that break RAG in production.
13 min read
Understand DNS resolution from root servers to authoritative servers. Learn to use the dig command to trace DNS lookups, understand NS records, and see how your browser finds IP addresses.
12 min read
Learn how network devices work together to connect you to the internet. Understand modems, routers, switches, hubs, firewalls, and load balancers with real-world analogies and diagrams.
11 min read
Understand the key differences between TCP and UDP protocols. Learn when to use each, how HTTP works on top of TCP, and clear up the common confusion between transport and application layer protocols.
11 min read
Master CSS selectors from basics to advanced. Learn element, class, ID, group, and descendant selectors with practical examples. Build a solid foundation for styling web pages.
11 min read
Learn Emmet, the shortcut language that turns cryptic abbreviations into full HTML in seconds. Master basic syntax, nesting, multiplication, and boost your HTML productivity by 10x.
9 min read
Learn how browsers transform a URL into pixels on your screen. Understand DOM, CSSOM, rendering engines, and the complete journey from pressing Enter to seeing a webpage.
10 min read
Learn the fundamentals of HTML tags and elements. Understand opening tags, closing tags, void elements, block vs inline elements, and commonly used HTML tags with practical examples.
10 min read
Learn how TCP ensures reliable data transmission over the internet. Understand the 3-way handshake, sequence numbers, acknowledgments, retransmission, and connection termination with clear diagrams.
10 min read