Written Comments
Written comments are explanatory notes added to source code to describe its functionality, logic, or purpose, making it easier for developers to understand and maintain the code. They are not executed by the compiler or interpreter and serve as documentation within the codebase. Comments help improve code readability, facilitate collaboration, and assist in debugging and future modifications.
Developers should use written comments to clarify complex algorithms, document assumptions, explain non-obvious code, and provide context for future maintainers, especially in team environments or large projects. They are essential for onboarding new team members, reducing technical debt, and ensuring code quality over time, as seen in use cases like open-source contributions, legacy system maintenance, and regulatory compliance in industries like finance or healthcare.