Diff Reveal

About this piece

Code diff whose removed and added lines slide into place one after another on mount, with the header tallying added and removed counts as they land.

Usage

The import and the props worth knowing about, in one place.

import { Code14 } from "@/components/beste/piece/code14";

<Code14
  filename="pricing.ts"
  lines={[
    {
      "text": "import { coupon } from \"./coupon\""
    },
    {
      "text": ""
    },
    {
      "text": "export function total(cart: Cart) {"
    },
    {
      "text": "  const sum = cart.lines.reduce(add, 0)",
      "kind": "removed"
    },
    {
      "text": "  return sum",
      "kind": "removed"
    },
    {
      "text": "  const sum = cart.lines.reduce(add, 0)",
      "kind": "added"
    },
    {
      "text": "  const discount = coupon(cart, sum)",
      "kind": "added"
    },
    {
      "text": "  return sum - discount",
      "kind": "added"
    },
    {
      "text": "}"
    }
  ]}
/>

More Code pieces

View all Code

function greet(name) {

return 'Hi ' + name;

return `Hello, ${name}!`;

}

Diff Snippet

Compact diff card with added, removed, and context lines tinted in emerald and rose.

const greeting = "Hello, Beste!";ts

Code Line

One-line code snippet with a monospace pill and a tiny language tag on the right.

import{useState, useEffect}from"react";

import{Button}from"@/ui/button";

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

Import Block

Stacked import statements with destructured names and module paths in a quiet syntax palette.

# Database

DATABASE_URL=postgres://localhost/beste

REDIS_URL=redis://localhost:6379

# API

API_KEY=sk_test_EXAMPLE_0000

PORT=3000

Env File

Dotenv listing with sky keys, italic muted comments, and grouped sections separated by blank lines.

const user = await fetchUser("42");

Tokenized Line

Single-line snippet with keywords, strings, and function names colored by semantic token kind.

TypeError: Cannot read 'name' of undefined

greet(src/utils.ts:14:12)

handler(src/server.ts:42:8)

processRequest(src/api.ts:88:4)

Stack Trace

Error headline followed by a few stack frames with file paths and amber line and column numbers.