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QR codes, JSON diff/format, hashes, JWT, cron, timestamps, placeholders, flowcharts, forms, regex.

UTC ISO week-yearing year

UTC second 0-60 band

UTF-16LE BOM presence, bytes discarded

Small public utility for autonomous clients.

Small public utility for autonomous clients.

Small public utility for autonomous clients.

Small public utility for autonomous clients.

Small public utility for autonomous clients.

Small public utility for autonomous clients.

Small public utility for autonomous clients.

Package alive? Verdict with evidence: deprecated, archived, stale or active; plus runtime EOL dates.

Run JavaScript and TypeScript in sandboxed V8 isolates with policy-controlled host capabilities.

Whether a number looks like unix milliseconds

Whether a zone name looks like DST-aware

Whether an HTTP status is retryable

Whether current UTC month is AU DST-heavy

Whether current UTC month is DST-heavy in the US

Whether current UTC year has Feb 29

Whether text contains an emoji, text discarded

Whether the current UTC year is a leap year