# Class

A blueprint for making objects that bundle data with actions.

## What is **Class** in JavaScript?

**Class** — A blueprint for making objects that bundle data with actions.

```javascript
class Book {
    constructor(title) {
        this.title = title;
    }
}

const guide = new Book("JavaScript");
```

Level: Journeyman · [More JavaScript terms at this level](https://www.ask-codey.com/glossary/subjects/javascript/journeyman)

Updated: September 27, 2026

## In other subjects

- [Class in C#](https://www.ask-codey.com/glossary/class-c-sharp)
- [Class in Java](https://www.ask-codey.com/glossary/class-java)
- [Class in OOP](https://www.ask-codey.com/glossary/class-oop)

Source: https://www.ask-codey.com/glossary/class-javascript