Summary  
This chapter explains how to use single-line comments (//) in JavaScript to add explanatory notes or temporarily disable sections of code.  

General domain of usage  
Code documentation and debugging

# Summary

- **Comments**: a way to include useful notes or explanations in the code, or to temporarily ignore a piece of code;
- **Single-line comment**: used to add a comment that only takes up one line;
- The syntax of a single-line comment is:

```javascript
// your comment text here …
```

What symbol is used to create a single-line comment in JavaScript?

Which of the following is a correct example of a single-line comment?

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How to Use Comments in Javascript?

Summary

1. What symbol is used to create a single-line comment in JavaScript?

2. Which of the following is a correct example of a single-line comment?

How to Use Comments in Javascript?

Summary

1. What symbol is used to create a single-line comment in JavaScript?

2. Which of the following is a correct example of a single-line comment?