Sample Hardhat Project

This project demonstrates a basic Hardhat use case. It comes with a sample contract, a test for that contract, and a Hardhat Ignition module that deploys that contract.

Try running some of the following tasks:

npx hardhat help
npx hardhat test
REPORT_GAS=true npx hardhat test
npx hardhat node
npx hardhat ignition deploy ./ignition/modules/Lock.js

Here's a structured breakdown of the provided code:

1. Common Components:

License: // SPDX-License-Identifier: UNLICENSED Solidity Version: pragma solidity ^0.8.0; 2. Reusable Elements:

Interface: IERC20 interface defining standard functions for ERC20 tokens Library: SafeMath library providing safe arithmetic operations to prevent overflow and underflow Contract: Context contract offering basic context functions like _msgSender() and _msgData() Contract: Ownable contract implementing ownership control features 3. Main Contract:

Contract: TutToken contract representing the core token implementation, inheriting from Context, IERC20, and Ownable 4. Structure of TutToken Contract:

State Variables: _balances: Mapping to store token balances for each address _allowances: Mapping to track approved spending amounts for different spenders _totalSupply: Total token supply _decimals: Number of decimals for token precision _symbol: Token symbol (e.g., "TUT") _name: Token name (e.g., "TutToken") Constructor: Initializes token properties and assigns initial total supply to the deploying address Functions: getOwner(): Inherited from Ownable, returns the contract owner decimals(), symbol(), name(), totalSupply(), balanceOf(): Implement the core ERC20 functions transfer(): Transfers tokens between accounts allowance(), approve(), transferFrom(): Manage token allowances for third-party spending increaseAllowance(), decreaseAllowance(): Adjust allowances burn(): Destroys tokens burnFrom(): Destroys tokens from another user's account (requires allowance) Internal Functions: _transfer(), _burn(), _approve(): Helper functions to perform core operations internally _burnFrom(): Combines burning and allowance adjustments for burnFrom() 5. Inheritance and Libraries:

TutToken inherits from Context, IERC20, and Ownable to leverage their features and functionality. SafeMath library is used for secure arithmetic operations within the contract.