VibeUI

Code Block

JSON Tree

JSON with expandable nested nodes: every object and array is a native details element, and a collapsed branch shows how many fields it holds.

  • json
  • tree
  • details
  • no-js

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.

put this in the header: https://vibeui.ru/c/codeblock-021?lang=en

response.jsonapplication/json
{3}
"ok": true,
"user": {4},
"id": 42,
"name": "Ада",
"roles": [2],
0: "admin",
1: "editor"
],
"lastSeen": null
},
"items": [1]
0: {2}
"sku": "vb-001",
"price": 1290
}
]
}
Show the full instructions

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

# Install and place "codeblock-021" (JSON Tree) from VibeUI

## 1. Install first — do not skip, do not recreate
Run this exact command before writing any code:
npx shadcn@latest add https://vibeui.ru/r/codeblock-021.json

Registry item: https://vibeui.ru/r/codeblock-021.json
Installs to: components/vibeui/codeblock-021.tsx (the exact path follows this project's components.json aliases).
npm dependencies: none.
Registry dependencies: none.

Install it from the registry. Do not recreate it from the description,
do not substitute a similar component from another library, and do not
rewrite it to match the project's existing style.

## 2. What it is
JSON with expandable nested nodes: every object and array is a native details element, and a collapsed branch shows how many fields it holds.

A light JSON tree expanded through native details: a collapsed branch shows its field count. Zero dependencies, no client JS.

## 3. How to use it
import { Codeblock021 } from "@/components/vibeui/codeblock-021"

<Codeblock021
  rootLabel="response"
  openDepth={2}
/>

Read the installed file for the full prop list.

## 4. Where to place it
This is a small inline component. Put it exactly where the user asked,
inside the existing markup. Do not create a new page, section or
wrapper for it. If a similar control already sits in that spot,
replace it instead of adding a second one.

Placement: ___
(The user fills this line in. If it is still blank, ask where to put it
instead of guessing.)

## 5. Keep exactly as installed
- the local --vibeui-codeblock-021-* palette — do not swap it for your theme tokens
- the native details: it gives expansion, find-in-page and no-JS behaviour for free
- the field counter on a collapsed node — otherwise a closed branch looks like an empty one
- the trailing brace in the summary: a collapsed node has to look like finished JSON
- the commas derived from the element position rather than typed by hand
- the block's own light surface: without it the dark text vanishes on a dark page

## 6. You may change
- the payload through data
- the file caption through rootLabel
- the initial expansion depth through openDepth
- the token colours for strings, numbers and booleans

## 7. Rules
- The nesting indent is fixed: a very deep tree drifts into horizontal scrolling.
- The payload has to be a tree: a cyclic reference sends the recursion into an endless expansion.
- A smooth expansion animation for details is impossible without JS — the node opens instantly.
- Do not lift the CSS variables into globals.css: the component has to stay a single file.

## 8. Verify
- it renders with no console errors;
- it looks like the preview on the VibeUI page you copied this from;
- if it does not, you changed something listed in section 5 — put it back.

For developers

npx shadcn@latest add https://vibeui.ru/r/codeblock-021.json
https://vibeui.ru/r/codeblock-021.json

Компонент самодостаточен: один файл, без зависимостей, собственная палитра в локальных переменных --vibeui-codeblock-021-*. Серверный: раскрытие делает нативный details, состояние дерева в JS не хранится. Узлы рисует рекурсивная внутренняя функция: примитив становится строкой с токеном по типу значения, объект и массив — details с summary, счётчиком полей и хвостовой скобкой, которая видна только в свёрнутом виде. Запятые выводятся из позиции элемента, поэтому дерево всегда выглядит валидным JSON. Начальная глубина раскрытия задаётся пропсом openDepth и сравнивается с уровнем узла.

Component source

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

import type { CSSProperties } from "react"

export type Codeblock021Value =
  | string
  | number
  | boolean
  | null
  | Codeblock021Value[]
  | { [key: string]: Codeblock021Value }

export type Codeblock021Props = {
  rootLabel?: string
  openDepth?: number
  data?: Codeblock021Value
  className?: string
  style?: CSSProperties
}

// Идея компонента: JSON, который можно разбирать по частям. Каждый объект и
// массив — нативный details, поэтому раскрытие работает без JS, переживает
// поиск по странице и не требует хранить состояние дерева.
const STYLES = `
:where([data-vibeui-block="codeblock-021"]){
--vibeui-codeblock-021-bg:oklch(0.99 0.003 250);
--vibeui-codeblock-021-head:oklch(0.96 0.006 250);
--vibeui-codeblock-021-fg:oklch(0.28 0.014 250);
--vibeui-codeblock-021-muted:oklch(0.55 0.012 250);
--vibeui-codeblock-021-border:oklch(0.89 0.008 250);
--vibeui-codeblock-021-key:oklch(0.45 0.14 265);
--vibeui-codeblock-021-string:oklch(0.48 0.14 150);
--vibeui-codeblock-021-number:oklch(0.55 0.16 45);
--vibeui-codeblock-021-bool:oklch(0.5 0.17 320);
--vibeui-codeblock-021-null:oklch(0.6 0.01 250);
--vibeui-codeblock-021-accent:oklch(0.5 0.14 265);
--vibeui-codeblock-021-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
--vibeui-codeblock-021-font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
[data-vibeui-block="codeblock-021"]{
display:flex;flex-direction:column;
width:100%;max-width:30rem;box-sizing:border-box;margin:0;overflow:hidden;
border:1px solid var(--vibeui-codeblock-021-border);border-radius:0.75rem;
background:var(--vibeui-codeblock-021-bg);color:var(--vibeui-codeblock-021-fg);
font-family:var(--vibeui-codeblock-021-font);
}
[data-vibeui-block="codeblock-021"] [data-part="head"]{
display:flex;align-items:center;justify-content:space-between;gap:0.75rem;
padding:0.5rem 0.875rem;
background:var(--vibeui-codeblock-021-head);
border-bottom:1px solid var(--vibeui-codeblock-021-border);
font-family:var(--vibeui-codeblock-021-mono);font-size:0.75rem;
color:var(--vibeui-codeblock-021-muted);
}
[data-vibeui-block="codeblock-021"] [data-part="tree"]{
padding:0.625rem 0.875rem;overflow-x:auto;
font-family:var(--vibeui-codeblock-021-mono);
font-size:0.8125rem;line-height:1.7;
}
[data-vibeui-block="codeblock-021"] [data-part="children"]{
padding-inline-start:1.125rem;
border-inline-start:1px solid var(--vibeui-codeblock-021-border);
margin-inline-start:0.3125rem;
}
[data-vibeui-block="codeblock-021"] summary{
cursor:pointer;list-style:none;display:flex;align-items:center;gap:0.25rem;
border-radius:0.25rem;
}
[data-vibeui-block="codeblock-021"] summary::-webkit-details-marker{display:none}
[data-vibeui-block="codeblock-021"] summary::before{
content:"▸";flex:none;width:0.75rem;
color:var(--vibeui-codeblock-021-muted);
transition:transform .16s ease;
user-select:none;-webkit-user-select:none;
}
[data-vibeui-block="codeblock-021"] details[open] > summary::before{transform:rotate(90deg)}
[data-vibeui-block="codeblock-021"] summary:hover{background:oklch(0.5 0.14 265 / 8%)}
[data-vibeui-block="codeblock-021"] summary:focus-visible{
outline:2px solid var(--vibeui-codeblock-021-accent);outline-offset:1px;
}
/* Свёрнутый узел показывает, сколько в нём полей: без этого закрытая ветка
   ничем не отличается от пустой. Развёрнутый — прячет счётчик и хвост. */
[data-vibeui-block="codeblock-021"] [data-part="count"]{
color:var(--vibeui-codeblock-021-muted);font-size:0.75rem;
}
[data-vibeui-block="codeblock-021"] details[open] > summary [data-part="tail"],
[data-vibeui-block="codeblock-021"] details[open] > summary [data-part="count"]{display:none}
[data-vibeui-block="codeblock-021"] details:not([open]) > [data-part="children"],
[data-vibeui-block="codeblock-021"] details:not([open]) > [data-part="close"]{display:none}
[data-vibeui-block="codeblock-021"] [data-part="close"]{padding-inline-start:1rem}
[data-vibeui-block="codeblock-021"] [data-part="leaf"]{padding-inline-start:1rem}
[data-vibeui-block="codeblock-021"] [data-token="key"]{color:var(--vibeui-codeblock-021-key)}
[data-vibeui-block="codeblock-021"] [data-token="string"]{color:var(--vibeui-codeblock-021-string)}
[data-vibeui-block="codeblock-021"] [data-token="number"]{color:var(--vibeui-codeblock-021-number)}
[data-vibeui-block="codeblock-021"] [data-token="bool"]{color:var(--vibeui-codeblock-021-bool)}
[data-vibeui-block="codeblock-021"] [data-token="null"]{color:var(--vibeui-codeblock-021-null)}
@media (prefers-reduced-motion:reduce){[data-vibeui-block="codeblock-021"] *{animation:none!important;transition:none!important}}
`

const DATA: Codeblock021Value = {
  ok: true,
  user: {
    id: 42,
    name: "Ада",
    roles: ["admin", "editor"],
    lastSeen: null,
  },
  items: [{ sku: "vb-001", price: 1290 }],
}

function isBranch(
  value: Codeblock021Value,
): value is Codeblock021Value[] | { [key: string]: Codeblock021Value } {
  return typeof value === "object" && value !== null
}

function leafToken(value: Codeblock021Value) {
  if (value === null) return "null"
  if (typeof value === "string") return "string"
  if (typeof value === "number") return "number"
  return "bool"
}

function leafText(value: Codeblock021Value) {
  return typeof value === "string" ? `"${value}"` : String(value)
}

function Node({
  label,
  quoted,
  value,
  depth,
  openDepth,
  last,
}: {
  label?: string
  quoted?: boolean
  value: Codeblock021Value
  depth: number
  openDepth: number
  last: boolean
}) {
  const prefix = label ? (
    <>
      <span data-token="key">{quoted ? `"${label}"` : label}</span>
      {": "}
    </>
  ) : null

  if (!isBranch(value)) {
    return (
      <div data-part="leaf">
        {prefix}
        <span data-token={leafToken(value)}>{leafText(value)}</span>
        {last ? null : ","}
      </div>
    )
  }

  const array = Array.isArray(value)
  const entries: [string, Codeblock021Value][] = array
    ? value.map((item, index) => [String(index), item])
    : Object.entries(value)
  const open = array ? "[" : "{"
  const close = array ? "]" : "}"

  return (
    <details open={depth < openDepth}>
      <summary>
        {prefix}
        {open}
        <span data-part="count">{entries.length}</span>
        <span data-part="tail">
          {close}
          {last ? "" : ","}
        </span>
      </summary>
      <div data-part="children">
        {entries.map(([key, item], index) => (
          <Node
            key={key}
            label={key}
            quoted={!array}
            value={item}
            depth={depth + 1}
            openDepth={openDepth}
            last={index === entries.length - 1}
          />
        ))}
      </div>
      <div data-part="close">
        {close}
        {last ? "" : ","}
      </div>
    </details>
  )
}

/** JSON-дерево с раскрытием вложенных узлов через нативный details. */
export function Codeblock021({
  rootLabel = "response",
  openDepth = 2,
  data = DATA,
  className,
  style,
}: Codeblock021Props) {
  return (
    <>
      <style href="vibeui-codeblock-021" precedence="medium">
        {STYLES}
      </style>
      <figure
        data-vibeui-block="codeblock-021"
        className={className}
        style={style}
      >
        <figcaption data-part="head">
          <span>{rootLabel}.json</span>
          <span>application/json</span>
        </figcaption>
        <div data-part="tree">
          <Node value={data} depth={0} openDepth={openDepth} last />
        </div>
      </figure>
    </>
  )
}