JSON debugging guide01
How to Debug JSON with Formatting, Validation, and JSONPath
A repeatable debugging workflow for API responses, configuration files, and test data without mistaking formatting for validation.
Data & Development
Data and Development Guides
Work safely with structured data, text formats, scheduling, identifiers, and development checks.
7 guides
Data & Development
7 guidesRead guide
Data conversion guide02
How to Convert CSV, JSON, and YAML Data Safely
A practical workflow for converting table data and configuration data locally while avoiding silent changes to headers, types, nesting, and ordering.
Scheduling and time guide03
How to Avoid Timezone, Unix Timestamp, and Cron Scheduling Errors
A practical workflow for preventing common scheduling mistakes: wrong cron field counts, seconds-versus-milliseconds confusion, ambiguous local date-times, and timezone drift.
Text encoding guide04
Understand Base64, URL Encoding, and HTML Entities Without Treating Them as Encryption
A practical way to move text through data formats, URLs, and HTML without changing its meaning or making unsafe assumptions about security.
Markdown authoring guide05
How to Write, Preview, and Publish Markdown Without Formatting Surprises
A practical workflow for README files, documentation, notes, and web content: write portable Markdown, preview representative content, and verify the actual publishing renderer before relying on the result.
Regular expression guide06
How to Test JavaScript Regular Expressions With Edge Cases and Safer Replacements
A practical workflow for making a JavaScript regular expression reviewable: turn its intent into test cases, verify the browser engine and flags, and keep expensive patterns away from production-sized input.
Identifiers and QR guide07
How to Generate and Share UUIDs and QR Codes Responsibly
A practical workflow for creating identifiers and QR codes without confusing uniqueness with authorization or a scannable image with a protected secret.