🧮 Calculator App

A simple and user-friendly Calculator App built using HTML, CSS, and JavaScript.
This project performs basic arithmetic operations:

• Addition (+)
• Subtraction (−)
• Multiplication (×)
• Division (÷)

Perfect for beginners learning JavaScript DOM manipulation and event handling.

---

🚀 Features

• Perform basic arithmetic operations
• Clean and minimal UI
• Instant calculation
• Input validation (prevents division by zero)
• Pure JavaScript (no frameworks)

---

📁 Folder Structure

calculator-app/
│── index.html
│── style.css
└── script.js

---

🛠️ Technologies Used

• HTML5
• CSS3
• JavaScript (ES6)

---

▶️ How to Run

1. Clone the repository:

   git clone https://github.com/subashchandraninfo/calculator-app.git

2. Open the folder:

   ```bash
   cd calculator-app
   ```
3. Run the app:

   * Open **index.html** in your browser
     OR
   * Use **Live Server** in VS Code

---

## 💡 How It Works

### `script.js` Overview:

* **calculate(op)**

  * Reads values from two input fields
  * Performs the selected operation
  * Displays the result dynamically

### Supports:

* `+` Addition
* `-` Subtraction
* `*` Multiplication
* `/` Division (with zero-check)

---

## 📸 Screenshot (Optional)

<img width="497" height="475" alt="image" src="https://github.com/user-attachments/assets/6b74de39-94e2-4a31-aa51-417cfac2d3a0" />