SOLID Principles you won't forget again

Introduction SOLID is a set of design principles for writing clean, maintainable, and scalable code. It stands for: S- Single Responsibility Principle (SRP) A class or function should have only one responsibility. In the bad example below, the CreateUser function should not handle email-related logic. Bad example: public class UserService { public void CreateUser(string email) { var user = new User(email); _repository.Save(user); var smtpClient = new SmtpClient("smtp.company.com"); var message =