Calculator Web App

A modern, responsive calculator built with HTML, CSS, and JavaScript featuring a sleek dark theme and intuitive interface.

Features

• Basic Operations: Addition (+), subtraction (−), multiplication (×), division (÷)
• Advanced Functions:
  • Percentage calculations (%)
  • Plus/minus toggle (±)
  • Backspace (⌫)
  • All clear (AC)
• Real-time Expression Display: Shows the complete calculation as you type
• Error Handling: Division by zero protection
• Responsive Design: Clean, modern interface with smooth animations

Usage

1. Open index.html in your web browser
2. Click number buttons to input values
3. Use operator buttons for calculations
4. Press = to evaluate expressions
5. Use AC to clear everything or ⌫ to delete last character

File Structure

calculator/
├── index.html      # Main HTML structure
├── style.css       # Styling and layout
└── script.js       # Calculator logic and event handling

Development

To run locally:

1. Clone the repository
2. Open index.html in your browser
3. No build process required - pure vanilla JavaScript

Browser Support

Works in all modern browsers that support ES6+ JavaScript features.