Comments in JavaScript

• Comments in JavaScript are used to add explanatory notes and documentation to the code.

• Comments are ignored by the JavaScript interpreter and do not affect the behavior of the code.

• They are used to explain the purpose of the code, to provide instructions for future development, and to help other developers understand the code.

In JavaScript, there are two ways to write comments:

• Single-line comments: Single-line comments start with two forward slashes (//). Everything that follows on the same line is ignored by the interpreter.

Example:

// This is a single-line comment in JavaScript

• Multi-line comments: Multi-line comments start with /* and end with */. Everything in between is ignored by the interpreter.

• This type of comment is useful for adding longer explanations or for commenting out multiple lines of code.

Example:

/* This is a

    multi-line comment

    in JavaScript */

• Comments should be used liberally in JavaScript code to help make it more readable and maintainable.

• Well-written comments can make code easier to understand and modify, and they can also help to prevent errors and bugs in the code.