Technology Articles
Beginner-friendly explainers on JWT, JSON, hashing, regex, QR codes, markdown, and other practical tech concepts.
12 guides in this category, sorted by most recent.
Google Sheets Formulas: 25 Must-Know Functions
Master essential Google Sheets formulas including VLOOKUP, QUERY, ARRAYFORMULA, IMPORTRANGE, and data analysis functions with practical examples.
March 17, 2026 TechnologyExcel Formulas Cheat Sheet: 30 Essential Functions
Master the 30 most useful Excel formulas including VLOOKUP, INDEX-MATCH, IF, SUMIFS, COUNTIFS, and data analysis functions.
March 16, 2026 TechnologyUnderstanding Data Storage Units: From Bytes to Petabytes
Learn the data storage hierarchy from bytes to petabytes, binary vs decimal differences, and real-world storage examples.
March 12, 2026 TechnologyWhat Is a JSON Web Token (JWT) and How Does It Work?
Learn everything about JSON Web Tokens (JWTs) — their three-part structure, common claims, base64url encoding, use cases like API authentication and SSO, and important security considerations.
March 7, 2026 TechnologyA Beginner's Guide to Regular Expressions (Regex)
Master the fundamentals of regular expressions with this comprehensive guide covering syntax, character classes, quantifiers, anchors, groups, lookaheads, common patterns, and practical examples.
March 7, 2026 TechnologyMarkdown Syntax Cheat Sheet: A Complete Reference
A comprehensive Markdown reference covering headings, emphasis, lists, links, images, code blocks, tables, blockquotes, and GitHub Flavored Markdown extensions with practical examples.
March 7, 2026 TechnologyURL Encoding Explained: Why and How Special Characters Are Escaped
Understand URL encoding (percent-encoding) in depth — why special characters must be escaped in URLs, how RFC 3986 defines reserved and unreserved characters, and the difference between encodeURI and encodeURIComponent.
March 7, 2026 TechnologyJSON Explained: What It Is, How It Works, and Why Developers Use It
Comprehensive guide to JSON covering syntax rules, data types, nested structures, JSON vs XML vs YAML comparison, common use cases in APIs and configuration, and debugging tips.
March 7, 2026 TechnologyHow to Create a Strong Password: Best Practices for Online Security
Learn to create strong passwords using entropy principles, passphrases, and password managers. Covers attack methods, 2FA types, CSPRNG-based generators, and a security checklist.
March 7, 2026 TechnologyQR Codes Explained: How They Work and How to Create Your Own
Understand how QR codes encode data, explore content types like URLs, Wi-Fi, and vCards, learn best practices for print and digital use, and create your own QR codes.
March 7, 2026 TechnologyUnderstanding Color Theory: A Guide for Designers and Developers
Master color theory with this guide covering HEX, RGB, and HSL color models, the color wheel, harmony schemes, color psychology, WCAG accessibility contrast ratios, and building color systems.
March 7, 2026 TechnologySHA-256 and Hashing Explained: What Every Developer Should Know
Learn how SHA-256 and other hash functions work, compare MD5, SHA-1, SHA-256, bcrypt, and Argon2, understand password hashing best practices, and know when to use each algorithm.
March 7, 2026Other Categories
Browse all 224 articles or explore another topic from the main blog index.