Learn how to include comments in JavaScript code effectively. Explore syntax for single-line and multi-line comments, best practices, and the benefits of using comments for code readability and collaboration.
In JavaScript, you can include comments to add explanatory or descriptive text within your code. Comments are not executed by the JavaScript engine and are purely for human readers to understand the code better. There are two ways to write comments in JavaScript:
1. Single-line comments: To write a single-line comment, you can use two forward slashes (//) followed by the comment text. Anything after the double slashes will be considered a comment and will not be executed.
Example:
// This is a single-line comment
2. Multi-line comments: If you want to write a comment that spans multiple lines, you can use the forward slash and asterisk (/*) to begin the comment and the asterisk and forward slash (*/) to end the comment.
Example:
/* This is a multi-line comment. It can span multiple lines. */
It's good practice to use comments to explain complex sections of code, provide context, or add reminders for yourself or other developers who may read your code later. Comments can greatly enhance the readability and maintainability of your JavaScript code.
When commenting in JavaScript, it is essential to follow best practices to ensure effective communication and maintainable code. Here are some guidelines to consider:
Adding comments to your JavaScript code offers several benefits, including:
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