Listen to Events - Hardhat Typing CST Test
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Listen to Events — Hardhat Code
Listen to events emitted by a contract using Hardhat provider.
async function main() {
const Counter = await ethers.getContractFactory('Counter')
const counter = await Counter.attach('0xYourContractAddress')
counter.on('Incremented', (newValue) => {
console.log('Counter incremented to:', newValue)
})
}
main().catch((error) => { console.error(error); process.exitCode = 1 })Hardhat Language Guide
Hardhat is a JavaScript/TypeScript-based Ethereum development environment and framework. It enables developers to compile, deploy, test, and debug smart contracts efficiently on Ethereum and EVM-compatible networks.
Primary Use Cases
- ▸Compiling and deploying Solidity smart contracts
- ▸Running local Ethereum test networks
- ▸Automated testing of smart contracts
- ▸Debugging and logging transactions
- ▸Scripted contract interactions and deployments
Notable Features
- ▸Local development network (Hardhat Network)
- ▸Solidity compilation and artifact management
- ▸JavaScript/TypeScript-based scripting
- ▸Plugin system for extended functionality
- ▸Integration with ethers.js, web3.js, and Waffle
Origin & Creator
Hardhat was created by Nomic Labs in 2018 to simplify Ethereum smart contract development and provide a powerful local blockchain testing environment.
Industrial Note
Hardhat is preferred for Ethereum development workflows, CI/CD smart contract testing, automated deployment, and integration with frontends or other tools like ethers.js and web3.js.