JavaScript
JSON Formatting Best Practices for APIs and Config Files
Master JSON formatting with RFC 8259 rules, 2-space vs 4-space debates, JSON Schema validation, BigInt pitfalls, and command-line tools like jq.
Developer Blog
Deep-dives on JavaScript, CSS, security, and web performance. Practical guides with real code.
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JavaScript
The Complete Regex Cheat Sheet for Web Developers
Master regular expressions with this complete cheat sheet covering anchors, quantifiers, lookaheads, named groups, flags, and 10 real-world patterns.
CSS
CSS Gradients: The Complete 2026 Guide
Complete guide to CSS gradients in 2026: linear, radial, conic, mesh gradients, oklch color space, animated gradients with @property, and browser support.
Security
Base64 Encoding Explained: How It Works and When to Use It
Learn how Base64 encoding works step by step, from the 3-to-4 byte algorithm to base64url for JWTs, data URIs, and when to avoid it for large files.
Security
JWT Demystified: Everything Developers Need to Know
Everything about JWTs: structure, signing algorithms, critical security vulnerabilities (alg:none, algorithm confusion), storage debate, and OAuth2/OIDC relationship.
Security
The Math Behind Password Security: Entropy, Brute Force, and Best Practices
Understand password entropy calculations, real 2026 cracking speeds, NIST SP 800-63B guidance, Diceware, and why bcrypt, scrypt, and Argon2 matter for storage.
Tools
QR Codes in 2026: Complete Developer Guide
Complete QR code developer guide: Reed-Solomon error correction, version capacity table, encoding modes, WiFi/vCard formats, dynamic vs static QR, and print sizing.
Performance
Web Performance Cheat Sheet: Core Web Vitals and Optimization
Complete 2026 web performance guide: Core Web Vitals thresholds, LCP/INP/CLS optimization, resource hints, code splitting, Brotli, AVIF, and font subsetting techniques.