HelloWorld Smart contract

#solidity #blockchain #ethereum #coding

This is a smart contract written in the Solidity language,
The contract contains a public “message” variable of type String, initially defined as “Hello, World!” when the contract is deployed.

The contract also has a public “setMessage” function that updates the value of the “message” variable with a new string passed as an argument.

memory is a data type in Solidity used to temporarily store variables when executing functions. It saves storage space by automatically clearing the data once the function has finished.

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

contract HelloWorld {
    string public message;

    constructor() {
        message = "Hello, World!";
    }

    function setMessage(string memory _newMessage) public {
        message = _newMessage;
    }
}

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