Counter Smart Contract

🌿 Counter Smart Contract

Counter is a simple and interactive Solidity smart contract deployed on the Ethereum blockchain. It allows users to increment, decrement, reset, and view a counter value, demonstrating the fundamentals of smart contract development.

📜 Live Deployment

Blockchain: Ethereum (Testnet/Mainnet)

Deployed Contract Address: 0xd9145CCE52D386f254917e481eB44e9943F39138

Transaction Hash: 0xb2f47b8afc05ecfb893170268a53677a20f41420120b5788707a91a59d62f6f3

Transaction Cost: 262,466 gas ✅ Successfully deployed and verified.

✨ Features

🔼 Increment Counter – Increase the counter by 1.

🔽 Decrement Counter – Decrease the counter by 1 (cannot go below zero).

🔄 Reset Counter – Reset the counter to 0.

👀 View Count – Check the current value of the counter.

🔔 Events – Emits CountChanged event whenever the counter changes.

⚙ How It Works

Increment Counter

increment(); Adds 1 to the current counter and emits a CountChanged event.

Decrement Counter

decrement(); Subtracts 1 from the counter (only if above zero) and emits a CountChanged event.

Reset Counter

reset(); Sets the counter value to 0 and emits a CountChanged event. Get Current Count

getCount(); Returns the current counter value.

📁 Project Structure

counter/ ├── contracts/ │ └── Counter.sol # Smart contract code ├── scripts/ │ └── deploy.js # Optional deployment script ├── test/ │ └── counter.test.js # Automated tests ├── README.md ├── hardhat.config.js # Hardhat configuration └── package.json

🧪 Installation & Testing

Prerequisites

Node.js v16+

Hardhat

MetaMask (for testnet interaction)

Steps git clone https://github.com/yourusername/counter.git cd counter npm install npx hardhat compile npx hardhat test

Deployment (Optional) npx hardhat run scripts/deploy.js --network

📜 Contract Function Summary

🌍 Real-World Use Cases

Educational tool for learning Solidity basics Demonstration of smart contract events Interactive blockchain applications for testing and experimentation

📄 License

MIT License – Free to use, modify, and distribute.

🤝 Contributing

We welcome contributions from the community! Fork the repo Create your branch: git checkout -b feature/xyz Commit your changes: git commit -m "Add feature" Push to the branch: git push origin feature/xyz Submit a Pull Request

👋 Contact

Owner: Tamal Kar 📧 Email: tamal151947@example.com

🌱 Counter Smart Contract – Learn, interact, and experiment with blockchain in a simple way.