AyDeveloper AyDeveloper

## index.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="IPFS-Website With Unstoppable Domain"/>
    <meta name="author" content="IPFS-Website With Unstoppable Domain" />
    <title>0xpampam.blockchain</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.3.0/css/all.min.css" integrity="sha512-SzlrxWUlpfuzQ+pcUCosxcglQRNAq/DZjVsC0lE40xsADsfeQoEypE+enwcOiGjk/bSuGGKHEyjSoQ1zVisanQ==" crossorigin="anonymous" referrerpolicy="no-referrer" />

## new.sol
contract Parent {
    function add(uint _a, uint _b) public pure returns (uint) {
        return _a + _b;
    }

     function getBalance() public view returns (uint) {
         return address(this).balance;
    }
}

## variablePacking.sol
contract VariablePacking {

//Example of an unpacked variable

Struct Unpacked {
	uint128 a,
	uint256 b,
	uint128 c
}

## virOver.sol

     contract A {
         function foo()  virtual public pure returns (string memory) {
             return "Foo from A";
         }


         function boo()  public pure returns (string memory) {
             return "Boo from A";
         }

## customErr.sol
contract CustomError {

    error InsufficientBalance(uint balance, uint withdrawAmount);

    function testCustomError(uint _withdrawAmount) public view {
        uint bal = address(this).balance;
        if (bal < _withdrawAmount) {
            revert InsufficientBalance({balance: bal, withdrawAmount: _withdrawAmount});
        }
    }

## errors.sol

pragma solidity ^0.8.0;

contract Donation {
    // input your default donor address
    address public donor = 0x5B38Da6a701c568545dCfcB03FcB875f56beddC4;
    uint constant DONATION_FEE = 2 ether;

    modifier onlyDonor() {
    require(msg.sender == donor,"Only buyer can call this.");

## libFor.sol

library arithmetic {
    function add(uint _a, uint _b) returns (uint) {
        return _a + _b;
    }
}

contract C {
    using arithmetic for uint;


## lib.sol

library arithmetic {
    function multiply(uint _a, uint _b) returns (uint) {
        return _a  * _b;
    }
}

contract C {
    uint timesUp;

## events.sol

pragma solidity ^0.8.0;

contract DepositEther {
    event Deposit(
        address indexed _from,
       	uint indexed _id,
        uint _value
    );

## abstract.sol

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

abstract contract HelloWorld {
   string public message;
    constructor(string memory _message){
       message = _message;
    }
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta name="description" content="IPFS-Website With Unstoppable Domain"/>
	<meta name="author" content="IPFS-Website With Unstoppable Domain" />
	<title>0xpampam.blockchain</title>
	<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.3.0/css/all.min.css" integrity="sha512-SzlrxWUlpfuzQ+pcUCosxcglQRNAq/DZjVsC0lE40xsADsfeQoEypE+enwcOiGjk/bSuGGKHEyjSoQ1zVisanQ==" crossorigin="anonymous" referrerpolicy="no-referrer" />
	contract Parent {
	function add(uint _a, uint _b) public pure returns (uint) {
	return _a + _b;
	}

	function getBalance() public view returns (uint) {
	return address(this).balance;
	}
	}
	contract VariablePacking {

	//Example of an unpacked variable

	Struct Unpacked {
	uint128 a,
	uint256 b,
	uint128 c
	}

	contract A {
	function foo() virtual public pure returns (string memory) {
	return "Foo from A";
	}


	function boo() public pure returns (string memory) {
	return "Boo from A";
	}
	contract CustomError {

	error InsufficientBalance(uint balance, uint withdrawAmount);

	function testCustomError(uint _withdrawAmount) public view {
	uint bal = address(this).balance;
	if (bal < _withdrawAmount) {
	revert InsufficientBalance({balance: bal, withdrawAmount: _withdrawAmount});
	}
	}

	pragma solidity ^0.8.0;

	contract Donation {
	// input your default donor address
	address public donor = 0x5B38Da6a701c568545dCfcB03FcB875f56beddC4;
	uint constant DONATION_FEE = 2 ether;

	modifier onlyDonor() {
	require(msg.sender == donor,"Only buyer can call this.");

	library arithmetic {
	function add(uint _a, uint _b) returns (uint) {
	return _a + _b;
	}
	}

	contract C {
	using arithmetic for uint;

	library arithmetic {
	function multiply(uint _a, uint _b) returns (uint) {
	return _a * _b;
	}
	}

	contract C {
	uint timesUp;

	pragma solidity ^0.8.0;

	contract DepositEther {
	event Deposit(
	address indexed _from,
	uint indexed _id,
	uint _value
	);

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

	abstract contract HelloWorld {
	string public message;
	constructor(string memory _message){
	message = _message;
	}