vibecodng.com

Free MCP betaIndex and tools live

Measured entry

shadcn-block-calendar-08

calendarminimal-flat

A client-side, single-date calendar block that starts with a selected date and disables every earlier day. It ships as a shadcn registry block wrapping the shared Calendar component, with React state and dependencies on react-day-picker, date-fns, Radix Slot, Tailwind styling, and the shadcn utility helper.

Specimen
Harness screenshot of shadcn-block-calendar-08 at 375 pixels wide
Harness screenshot at 375 pixels wide. No horizontal overflow recorded.
Harness screenshot of shadcn-block-calendar-08 at 768 pixels wide
Harness screenshot at 768 pixels wide. No horizontal overflow recorded.
Harness screenshot of shadcn-block-calendar-08 at 1440 pixels wide
Harness screenshot at 1440 pixels wide. No horizontal overflow recorded.

Measured

Every value below was written by the harness on the run that produced the frames above. None of it is derived from the prose.

Harness measurements recorded for shadcn-block-calendar-08
BuildOK
MountOK
Console errors0
Uncaught page errors0
Horizontal overflowclean at 375, 768, 1440
Axe critical0
Axe serious0
Axe moderate0
Axe minor0
Gzip marginal50.9 KB (116.3 KB build, 65.4 KB baseline)
Bare modeFAIL
Provider requiredNO
Demo usednone

What the harness recorded

BARE BUILD

✗ Build failed in 34.39s
error during build:
[vite:load-fallback] Could not load <sandbox>/src/lib/utils (imported by src/components/ui/calendar.tsx): ENOENT: no such file or directory, open '<sandbox>/src/lib/utils'

Verdict

A focused, dependable starting point for cutoff-based date selection, with a clean verified build and mount in its intended environment. It needs a shadcn-style setup because the bare project cannot resolve the expected utility module.

Use it if

  • You need a date picker that prevents selection before a fixed cutoff.
  • Your app already uses shadcn components, aliases, and Tailwind theme conventions.
  • You want controlled single-date selection that can be connected to form or booking state.

Skip it if

  • You need a date range, time selection, or a configurable availability model without extending the block.
  • Your project does not use Tailwind or shadcn conventions and you do not want to adopt their supporting files.
  • You need the cutoff date to come from props or live data without modifying the example.

Install

Installation record for shadcn-block-calendar-08
Declared dependenciesreact-day-picker@latest, date-fns, @radix-ui/react-slot
Missing on installnone
Bare installfails once the shadcn-style helpers are removed, so it needs that setup
Providerno provider required in the harness

In a non-shadcn project, add the shared Calendar implementation, the aliased utility module that provides class-name merging, matching path aliases, Tailwind theme styles, and the declared react-day-picker, date-fns, and Radix Slot packages. Replace the registry import with your local Calendar path.

Source and credit

This page is a review, not a copy. The component source lives with its author and this site does not republish it. Read the license before you use anything.

Author repository

github.com/shadcn-ui/ui
License
MIT
Record published
2026-08-14

Alternatives

Other published entries for the calendar pattern, ordered by what they measured: mounts first, then clean axe scans, then bare-mode passes, then the smaller bundle.