Calendar

Birth Date Fields

A date of birth as three fields instead of a month grid: day, month and year typed from the keyboard, with validation that separates an impossible day, a future date and an age limit.

What you can change

  • label — the heading of the field group
  • defaultValue — the initial date as a YYYY-MM-DD string, or empty
  • minAge — the minimum age below which the form complains

A link for your AI agent: preview, code and instructions.

Preview

1440pxHost theme

Use it with AI

  1. 1. Copy the link.
  2. 2. Write to your agent in your own words and drop the link into the sentence.
  3. 3. The agent opens the link and installs the component from the registry.
AI
1Pick it here

put this on the home page as the hero:

https://vibeui.ru/c/calendar-024?lang=en&theme=dark

2Paste into the chat
3Get it in your project

Not sure where to paste it? Step-by-step guide

Show the full instructions

What the link says, spelled out. Use it when your agent cannot open links — paste this text instead.

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For developers

The install command lives in the “Component source” block below — a signed link that stays valid for 24 hours.

Technical notes

The component is self-contained: one file, zero dependencies, its own palette in local variables --vibeui-calendar-024-*. Client-side: the three parts of the date live in separate useStates, and onChange hands out the assembled YYYY-MM-DD string, or an empty string if the date is incomplete. The root is a <fieldset> with a <legend>, every field has its own <label>, and autofill is enabled by the attributes autoComplete="bday-day|bday-month|bday-year". The month is a <select> with names from Intl, so the digit 07 does not argue with the date format of the user's country. The validation is assembled in a single useMemo and returns not a boolean but an idle/ok/bad state with text: the number of days in a month is computed through new Date(year, month, 0).getDate(), and the age by comparing month and day. The state is lifted to the root as data-state, so the field borders and the label colour are painted by a single rule.

Tags

  • calendar
  • birthday
  • form
  • validation
Component source

The same file your agent installs. Here in case you would rather copy it by hand.

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