Types of variable in solidity

 Introduction to Variables in Solidity

Introduction

A variable is a value that can change, depending on conditions or information passed to the program.

There are numerous types of variables, such as:

State variables

String name=" vishwa";

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.9;

contract Storage {

   uint number;

    // takes a value _number and assigns it to the state variable number

    function setNumber(uint _number) public {

          number = _number;

    }

    // returns the value of the state variable number

    function getNumber() public view {

        return number;

    }

 }

Local variables

function update(string memory _name) public returns (int){

name=_name;

unit response=1;

return response;

}

Global variables

msg.sender

msg.value