Libraries and Abstract Contracts

Welcome to Libraries and Abstract Contracts! In this lesson, we'll explore two powerful Solidity features that enhance code reusability, modularity, and maintainability.

You'll learn how to build reusable utility functions with libraries and define common interfaces and base functionalities using abstract contracts.

Solidity Libraries are like special contracts that contain reusable code. They are designed for utility functions and cannot have state variables (with rare advanced exceptions) or hold Ether.

• They are deployed once and their code can be used by many contracts.
• This promotes code reuse and can be gas-efficient for complex operations.
• Functions within a library are typically internal or public.