Nodejs-Javascript-Vitest

# Code Generation Guidelines

Coding standards

- Use JavaScript with ES2022 features and Node.js (20+) ESM modules

- Use Node.js built-in modules and avoid external dependencies where possible

- Ask the user if you require any additional dependencies before adding them

- Always use async/await for asynchronous code, and use 'node:util' promisify function to avoid callbacks

- Keep the code simple and maintainable

- Use descriptive variable and function names

- Do not add comments unless absolutely necessary, the code should be self-explanatory

- Never use `null`, always use `undefined` for optional values

- Prefer functions over classes

Testing

- Use Vitest for testing

- Write tests for all new features and bug fixes

- Ensure tests cover edge cases and error handling

- NEVER change the original code to make it easier to test, instead, write tests that cover the original code as it is

Documentation

- When adding new features or making significant changes, update the README.md file where necessary

User interactions

- Ask questions if you are unsure about the implementation details, design choices, or need clarification on the requirements

- Always answer in the same language as the question, but use english for the generated content like code, comments or docs