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What's the difference?

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All stages · Demo 83

Age in JS

Choice the birth year (and month if stated). `today.getFullYear() - year` stays in JavaScript. Do not ask how old they are.

ChoiceAge from date parts

A year wheel and a live age. The birthday math never enters the prompt.

replayyear —age in JS

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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.