Dive into Web3 Contracts with Hardhat and Node.js Vol.2

1. Why did I choose these instruments? It's easy; to prevent copy-paste, you can read it in . this article 2. I still don’t understand what these smart contracts of yours are. Let's imagine a vending machine, and we try to compare smart contract behavior with it: : You put in a dollar, select a soda, and the machine gives you that soda. Why? Because it has a pre-set "contract" or program that says to do so when you choose to put in the correct amount of money.

address public admin; string public name; uint public endTime; uint public totalWinners; uint256 public ticketPrice; uint counter; mapping public balance; mapping public ownedTickets; mapping public tickets; uint ticketKeys; uint public winners; bytes32 seed; Status public status=Status.OPEN; ... constructor { admin=msg.sender; name=_name; endTime=_endTime; totalWinners=_totalWinners; ticketPrice=_ticketPrice; } ... } We little bit enrich our constructor.

Source: Digital Coin News (digitalcoinnews.net)

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