Question 1

How do I add comments to my code?

Accepted Answer

Use comment syntax for your language. JavaScript: // inline, /* block */, /** JSDoc */. Python: # inline, multi-line string as docstring. CSS: /* comment */. HTML: . Comments explain code logic, document functions, mark sections. Good comments explain WHY, not WHAT code does. Use auto-generator for quick documentation.

Question 2

What is JSDoc documentation?

Accepted Answer

JSDoc is JavaScript documentation standard. Format: /** @param {type} name - description */. Tags: @param for parameters, @returns for return value, @function for functions, @class for classes, @example for usage. Generate API docs from JSDoc. IDEs show tooltips from JSDoc. Use JSDoc for public APIs, libraries, complex functions.

Question 3

How do I write Python docstrings?

Accepted Answer

Python docstrings: triple-quoted string first in function/class. Single line: """Description.""" Multi-line: """Description with Args, Returns.""" Use Google style, NumPy style, or reStructuredText. Args: param: type - description. Returns: type - description. Tools: Sphinx, pydoc generate docs from docstrings.

Question 4

Why should I comment my code?

Accepted Answer

Comments help: other developers understand code, future self remember logic, document APIs and public interfaces, explain complex algorithms, mark TODOs and FIXMEs. Bad comments: explain obvious code, become outdated, distract from code. Good comments: explain intent, document decisions, clarify edge cases, warn about pitfalls.

Question 5

How do I generate documentation from comments?

Accepted Answer

JavaScript: JSDoc tool generates HTML docs from /** */ comments. Python: Sphinx, pydoc from docstrings. Java: Javadoc from /** */ comments. Run documentation generator on source code. Output: HTML reference site. Include examples, parameter descriptions, return types. Keep comments updated with code changes.

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