Basics
Node.js Comments
Node.js Comment Syntax
Node.js comments use // and /* */ supporting JSDoc for documentation.
Introduction to Comments in Node.js
Comments are an essential part of writing clean, readable, and maintainable code. In Node.js, comments help developers understand the purpose and logic of code segments, making collaboration and future updates easier. Node.js supports two basic types of comments: single-line and multi-line. Additionally, JSDoc comments are used for generating documentation.
Single-line Comments
Single-line comments in Node.js are created using the // syntax. These comments extend from the // marker to the end of the line. They are useful for brief notes or disabling code.
Multi-line Comments
Multi-line comments are created using the /* */ syntax. This type of comment is useful for longer explanations or to temporarily disable a block of code.
JSDoc Comments for Documentation
JSDoc is a popular tool for adding structured comments to your code. These comments are typically placed before a function or class declaration and can be used to generate HTML documentation. JSDoc comments start with /** and end with */.
Best Practices for Using Comments
- Be concise: Comments should be succinct and to the point.
- Avoid obvious comments: Do not comment something that is self-explanatory.
- Keep them updated: Ensure comments are updated along with code changes.
- Use JSDoc for complex documentation: Utilize JSDoc for functions and classes to maintain comprehensive documentation.
