Practical, reviewed guides

Learn the ideas behind the tools

Focused explanations, safe examples, and implementation checklists for developers and technical teams.

regex

JavaScript

validation

Regex Cheat Sheet for JavaScript

A focused collection of JavaScript regular-expression patterns for email, URLs, dates, IPs, colours, versions, and more—plus flags, testing advice, and ReDoS safety notes.

Feb 8, 202614 min

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JSON

APIs

data design

JSON Formatting Best Practices for APIs

Design consistent JSON responses with clear naming, dates, errors, pagination, and forward-compatible data shapes.

Feb 5, 202612 min

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webhooks

APIs

security

What Is a Webhook? A Practical Guide

Understand webhook delivery, signature verification, retries, idempotency, and safe debugging with practical examples from Stripe, GitHub, and Slack.

Feb 1, 202613 min

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