Badge — logic2b/ui

BadgeSecondaryOutlineDestructive

import { Badge } from "@/components/ui/badge"

export default function BadgeDemo() {
  return (
    <div className="flex flex-wrap items-center justify-center gap-2">
      <Badge>Badge</Badge>
      <Badge variant="secondary">Secondary</Badge>
      <Badge variant="outline">Outline</Badge>
      <Badge variant="destructive">Destructive</Badge>
    </div>
  )
}

Installation

npx logic2b@latest add badge

Working with an AI assistant? Copy this prompt into Claude Code, Cursor or Copilot — it carries the install steps, a no-CLI fallback and a verification checklist.

Add the "badge" item from the logic2b ui registry (https://ui.logic2b.com) to this project. Follow every step and verify at the end.

## Steps

1. If the project has no `components.json` yet, set up logic2b ui first:

   ```bash
   npx logic2b@latest init
   ```

2. Install the item (the CLI resolves registry dependencies automatically):

   ```bash
   npx logic2b@latest add badge
   ```

3. Install any npm dependencies the command prints.

## If the CLI is not available

Do it manually from the registry payload:

1. Fetch https://ui.logic2b.com/r/badge.json.
2. Write every entry in `files[]` to its mapped project path (see below).
3. Repeat (recursively) for each name in `registryDependencies`.
4. Install every package listed in `dependencies` across those payloads.

## Registry reference

- Index of every item: https://ui.logic2b.com/r/index.json
- Item payload (full source): https://ui.logic2b.com/r/<name>.json
- Usage examples per item: https://ui.logic2b.com/r/demos/index.json → https://ui.logic2b.com/r/demos/<demo>.json
- Docs index for agents: https://ui.logic2b.com/llms.txt (full docs: https://ui.logic2b.com/llms-full.txt)
- Every docs page is Markdown when you append `.md` to its URL.

Registry file paths map to project paths like this:
- `ui/*` → `@/components/ui/*`
- `blocks/<name>/*` → `@/components/*`
- `charts/*` → `@/components/charts/*`
- `hooks/*` → `@/hooks/*`
- `lib/utils.ts` → `@/lib/utils.ts`
- `theme.css` → next to the project's Tailwind entry stylesheet

## Conventions (do not break these)

- Tailwind CSS v4 (CSS-first config; no tailwind.config.js needed) and React 19.
- All colors go through semantic tokens (`bg-primary`, `text-muted-foreground`,
  `border-border`, …). Never hardcode hex/oklch values in components.
- Dark mode is class-based: toggle `.dark` on `<html>`.
- Icons come from lucide-react.

## Verify before finishing

1. The dev server starts and the app renders without console errors.
2. TypeScript compiles (`tsc --noEmit` or the framework's check).
3. Components use the theme: a `<Button>` shows the primary token color,
   and toggling `.dark` on `<html>` switches the palette.

Install the dependencies:

npm install radix-ui class-variance-authority

Copy into ui/badge.tsx:

import * as React from "react"
import { Slot } from "radix-ui"
import { cva, type VariantProps } from "class-variance-authority"

import { cn } from "@/lib/utils"

const badgeVariants = cva(
  "inline-flex items-center justify-center rounded-md border px-2 py-0.5 text-xs font-medium w-fit whitespace-nowrap shrink-0 [&>svg]:size-3 gap-1 [&>svg]:pointer-events-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive transition-[color,box-shadow] overflow-hidden",
  {
    variants: {
      variant: {
        default:
          "border-transparent bg-primary text-primary-foreground [a&]:hover:bg-primary/90",
        secondary:
          "border-transparent bg-secondary text-secondary-foreground [a&]:hover:bg-secondary/90",
        destructive:
          "border-transparent bg-destructive text-destructive-foreground [a&]:hover:bg-destructive/90",
        outline:
          "text-foreground [a&]:hover:bg-accent [a&]:hover:text-accent-foreground",
      },
    },
    defaultVariants: {
      variant: "default",
    },
  }
)

function Badge({
  className,
  variant,
  asChild = false,
  ...props
}: React.ComponentProps<"span"> &
  VariantProps<typeof badgeVariants> & { asChild?: boolean }) {
  const Comp = asChild ? Slot.Root : "span"

  return (
    <Comp
      data-slot="badge"
      className={cn(badgeVariants({ variant }), className)}
      {...props}
    />
  )
}

export { Badge, badgeVariants }

Usage

import { Badge } from "@/components/ui/badge"

<Badge variant="outline">Badge</Badge>

Use asChild to render a link that looks like a badge.

API

Prop	Type	Default
`variant`	`default \| secondary \| destructive \| outline`	`default`
`asChild`	`boolean` — render as the child element (e.g. an `a`)	`false`

Examples

With icon

A leading svg icon is sized and spaced automatically.

Verified3 newOverdue

import { BadgeCheck } from "lucide-react"

import { Badge } from "@/components/ui/badge"

export default function BadgeIconDemo() {
  return (
    <div className="flex flex-wrap items-center justify-center gap-2">
      <Badge>
        <BadgeCheck />
        Verified
      </Badge>
      <Badge variant="secondary">3 new</Badge>
      <Badge variant="destructive">Overdue</Badge>
    </div>
  )
}

As a link

Use asChild to render an anchor that looks like a badge.

View docs

import { Badge } from "@/components/ui/badge"

export default function BadgeLinkDemo() {
  return (
    <Badge asChild variant="outline">
      <a href="/docs/components/badge">View docs</a>
    </Badge>
  )
}