🪄 Casely

A lightweight and fast utility to convert object keys between camelCase and snake_case.
No dependencies, written in TypeScript, designed for performance and clarity.

✨ Features

• 🔁 Convert keys deeply between camelCase ↔ snake_case
• ⚙️ Support for nested objects, arrays, and key skipping
• 🧠 Smart transformation with optional value manipulation
• 📦 Zero dependencies
• 🔒 Fully type-safe

📦 Installation

npm install @yuisalabs/casely

⚙️ Usage

import { toCamelCaseKeys, toSnakeCaseKeys } from "@yuisalabs/casely"

const snakeCaseObject = {
  user_id: 1,
  user_name: "John Doe",
  user_details: {
    first_name: "John",
    last_name: "Doe",   
  }
}

const camelCaseObject = {
  userId: 1,
  userName: "John Doe",
  userDetails: {
    firstName: "John",
    lastName: "Doe",   
  }
}

console.log(toCamelCaseKeys(snakeCaseObject))
// Result
{
  userId: 1,
  userName: "John Doe",
  userDetails: {
    firstName: "John",
    lastName: "Doe",   
  }
}

console.log(toSnakeCaseKeys(camelCaseObject))
// Result
{
  user_id: 1,
  user_name: "John Doe",
  user_details: {
    first_name: "John",
    last_name: "Doe",   
  }
}