Hardhat Network Helpers

Hardhat Network Helpers is a library that provides a set of utility functions to interact with the Hardhat Network. You can read their full documentation here.

Installation

We recommend using npm 7 or later:

npm install --save-dev @nomicfoundation/hardhat-network-helpers

Usage

Import it and use it in any of your files. For example, this Hardhat script mines some blocks and then prints the block number.

const helpers = require("@nomicfoundation/hardhat-network-helpers");

async function main() {
  // mine 100 blocks
  await helpers.mine(100);

  console.log("The current block number is", await helpers.time.latestBlock());
}

main().catch((error) => {
  console.error(error);
  process.exitCode = 1;
});