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What's the difference?

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All stages · Demo 230

LOINC plate

Choice hgb / a1c / other. A LOINC is 2–5 digits, a hyphen, and one check digit. Jev never regexes the plate. No hyphen rejects.

ChoiceLOINC format in JS

A digit tape. 718-7 books hemoglobin. 4548-4 lights A1c. 7187 never hyphens.

replayan —loinc —

STANDBY

All 4056 stages

Educational stage on jev.page — not the official TypeSafe console. Live calls go to POST https://api.typesafe.ai/v1/systemone from your browser when you paste a key. Without a key, the stage plays a recorded decision shaped like jev-1.13.0. Jev does not write the UI copy.