Summary  
This chapter explains how to use single-line comments (//) in JavaScript to add explanatory notes in code and to temporarily disable sections of code without affecting execution.  

General domain of usage  
Front-end web development

# 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?

Dive into the world of the most popular language for front-end development – JavaScript. JavaScript is a language built into almost every browser and can be used for a wide variety of tasks. Learn the basic functionality and prepare yourself for the challenges and more advanced programming techniques.

An introduction to JavaScript, covering the basic syntax of the language along with key terms and concepts that form the foundation for learning advanced features. The section includes hands-on tasks designed to help practice these concepts and make the content easy to remember without effort.

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?