Understanding Libraries, Interfaces, and Abstract Contracts in Solidity
Libraries, interfaces, and abstract contracts are three important concepts in Solidity that help developers write efficient and reusable code.

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Libraries, interfaces, and abstract contracts are three important concepts in Solidity that help developers write efficient and reusable code.

Solidity libraries contain reusable smart contract code. A library is assigned a specific address and its properties and methods can be reused

Solidity interfaces allow smart contracts to communicate without having to implement their functionality.

Abstract contracts facilitate patterns like the template method, which improves code readability and generalizes our code.

With the use of ABI encoding, byte data can be encoded between contracts or between contracts and external applications.

ABI.encodePacked compresses the contract data into a one-byte array thereby reducing its size
