Development Tools

Bulk Email Extractor Field Guide: When Plus-Addressing, Gmail Dotted Aliasing, and Trailing Dots Slip Past Naive Regex

By xiezixing 2026年10月5日

A field guide to the five failure patterns bulk email regex silently misses: plus-tagging, dotted aliasing, trailing dots, case-insensitive dedup, and the two-stage normalization your downstream pipeline needs.

未分类

ISO 8601 Duration Builder Field Guide: When Four Parsing Rules Save Your API Contract

By xiezixing 2026年9月5日

Four ISO 8601 parsing rules, five worked round-trip examples, and a pre-commit audit checklist for PnYnMnDTnHnMnS.

未分类

Text Pad & Align Field Guide: When Four Alignment Modes Beat Custom Padding Logic

By xiezixing 2026年8月29日

Most teams reach for a regex or a stack of String#padStart calls the moment a…

未分类

Secure Random Generator Field Guide: Entropy, Three Encodings, and Why Math.random() Fails

By xiezixing 2026年8月6日

Lead (close-first, ~80 words) If you have ever pasted a Math.random() token into a JWT…

未分类

Why Your “JSON Diff” Is Lying About What Actually Changed

By xiezixing 2026年7月21日

Most JSON diff tools are lying about what changed. Here is the walk-the-tree workflow that surfaces every changed leaf, classifies it correctly, and catches the four traps shallow comparisons hide.

未分类

Your UUIDs Are Lying to You

By xiezixing 2026年4月18日

Your UUIDs Are Lying to You Every UUID is a data leak waiting to happen.…

未分类

5 Essential ID & Identifier Tools Every Developer Needs in 2026

By xiezixing 2026年3月13日

Working with unique identifiers is a fundamental part of modern software development. Whether you're building…