Welcome to the Hardhat documentation for Smart Contract development using JavaScript. Hardhat is a powerful tool that helps developers to write, test, and deploy smart contracts on Ethereum.

Quick Start

Before you dive into the details, here's a quick start guide to get you up and running with Hardhat:

  1. Install Node.js: Ensure you have Node.js installed on your system.
  2. Install Hardhat: Use npm to install Hardhat globally.
    npm install --global hardhat
    
  3. Initialize a New Project: Create a new directory for your project and initialize it with Hardhat.
    mkdir my-hardhat-project
    cd my-hardhat-project
    hardhat init
    
  4. Write Your Smart Contract: Create a new file for your smart contract, e.g., MyContract.sol.
  5. Compile Your Contract: Run the following command to compile your contract.
    npx hardhat compile
    
  6. Deploy Your Contract: Use the Hardhat network to deploy your contract.
    npx hardhat run scripts/deploy.js
    

Features of Hardhat

  • Development Environment: Hardhat provides a local development environment where you can deploy contracts and interact with them.
  • Testing Framework: Hardhat integrates with popular testing frameworks like Mocha and Chai.
  • Custom Scripts: You can write custom scripts to automate various tasks, such as deploying contracts or interacting with them.
  • TypeScript Support: Hardhat supports TypeScript, which can make your development process more robust.

Example Contract

Here's a simple example of a smart contract in Solidity that stores a value:

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract SimpleStorage {
    uint256 public storedData;

    function set(uint256 x) public {
        storedData = x;
    }

    function get() public view returns (uint256) {
        return storedData;
    }
}

Further Reading

For more detailed information and tutorials, check out the following resources:

Community

Join the Hardhat community to get support and share your experiences:

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