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What's the difference?

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All stages · Demo 152

Postal pattern

Choice US / GB / PT. US is five digits, GB outward+inward, Portugal `dddd-ddd`. Pattern tests never go to Jev.

ChoicePostal regex by country

An IBAN-style strip of postal chunks. A two-digit Portugal code rejects in the regex.

replaycc —fmt —

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.