ReasonJun

Storage Storage is a persistent data store in Solidity that is used to store state variables. State variables are variables that are saved to the blockchain and can be accessed and modified by any user of the contract. Storage is the most expensive type of storage in Solidity, as it requires gas to read and write to. Memory Memory is a temporary data store in Solidity that is used to store data ..

Variable : The name given to the memory space that can store variable values, or the memory space itself, is called a 'variable'. State Variables : Declared outside of a function. Variable permanently stored in the contract storage. Local Variables : Declared inside a function. Exists only during function execution. Not stored in blockchain contract. Global Variables : (ex. Block info , msg info..

1. SPDX - License - Identifier ex . //SPDX-License-Identifier: MIT : In each file of the project, add a line at the top that matches the license. Determine the License applied to the file License standardization of source code and documents Eliminate error-prone license header parsing 2. Pragma solidity ex. pragma solidity >= 0.7.0 < 0.9.0; : Indicates the solidity compiled version of the curren..

Solidity is a high-level programming language designed for implementing smart contracts. Smart contracts are self-executing contracts with the terms of the agreement between buyer and seller directly written into lines of code. The code and the agreements contained therein exist across a distributed, decentralized blockchain network. The code controls the execution of the terms of the contract. ..