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Code Block

Code Block is a React and Tailwind CSS data component from Prompt Kit, licensed MIT. Copy it and paste it into your project.

Prompt Kit MIT data

What it is

Code Block is a React and Tailwind CSS data component from Prompt Kit, licensed MIT. Copy it and paste it into your project.

How to use it

Open it in the catalogue, press copy, and paste it into your project. The prompt you copy carries the code and the rules that tell your agent to reproduce it without changing anything.

Open in the catalogue

Five free copies a month. No card.

Needs

npm i shiki

Licence

This component comes from Prompt Kit and is redistributed under the MIT licence, which permits commercial use. The copyright notice travels with the code.

Code Block

code-block.tsx
"use client"

import { cn } from "@/lib/utils"
import React, { useEffect, useState } from "react"
import { codeToHtml } from "shiki"

export type CodeBlockProps = {
  children?: React.ReactNode
  className?: string
} & React.HTMLProps<HTMLDivElement>

function CodeBlock({ children, className, ...props }: CodeBlockProps) {
  return (
    <div
      className={cn(
        "not-prose flex w-full flex-col overflow-clip border",
        "border-border bg-card text-card-foreground rounded-xl",
        className
      )}
      {...props}
    >
      {children}
    </div>
  )
}

export type CodeBlockCodeProps = {
  code: string
  language?: string
  theme?: string
  className?: string
} & React.HTMLProps<HTMLDivElement>

function CodeBlockCode({
  code,
  language = "tsx",
  theme = "github-light",
  className,
  ...props
}: CodeBlockCodeProps) {
  const [highlightedHtml, setHighlightedHtml] = useState<string | null>(null)

  useEffect(() => {
    async function highlight() {
      if (!code) {
        setHighlightedHtml("<pre><code></code></pre>")
        return
      }

      const html = await codeToHtml(code, { lang: language, theme })
      setHighlightedHtml(html)
    }
    highlight()
  }, [code, language, theme])

  const classNames = cn(
    "w-full overflow-x-auto text-[13px] [&>pre]:px-4 [&>pre]:py-4",
    className
  )

  // SSR fallback: render plain code if not hydrated yet
  return highlightedHtml ? (
    <div
      className={classNames}
      dangerouslySetInnerHTML={{ __html: highlightedHtml }}
      {...props}
    />
  ) : (
    <div className={classNames} {...props}>
      <pre>
        <code>{code}</code>
      </pre>
    </div>
  )
}

export type CodeBlockGroupProps = React.HTMLAttributes<HTMLDivElement>

function CodeBlockGroup({
  children,
  className,
  ...props
}: CodeBlockGroupProps) {
  return (
    <div
      className={cn("flex items-center justify-between", className)}
      {...props}
    >
      {children}
    </div>
  )
}

export { CodeBlockGroup, CodeBlockCode, CodeBlock }

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