# CLI Calculator

A simple command-line calculator application written in Node.js.

## Features

- Basic arithmetic operations: addition, subtraction, multiplication, division
- Interactive CLI interface
- Error handling for invalid operations

## Installation

No dependencies required - uses Node.js built-in modules only.

## Usage

```bash
npm start
```

Or run directly:

```bash
node calculator.js
```

## Examples

```
> 5+3
= 8

> 10-2
= 8

> 4*6
= 24

> 20/4
= 5
```

Type `quit` or `exit` to close the calculator.