Modular Code
Modular code is a software design principle that involves breaking down a program into smaller, independent, and reusable components or modules, each with a specific responsibility. This approach promotes separation of concerns, making code easier to understand, test, and maintain by reducing complexity and dependencies between parts of the system.
Developers should learn and apply modular code to improve scalability and collaboration in projects, especially in large or long-term applications where changes are frequent. It is essential in scenarios like microservices architectures, library development, and team-based workflows, as it minimizes side effects and facilitates code reuse across different parts of a project or even across multiple projects.