> For the complete documentation index, see [llms.txt](https://demirels-organization.gitbook.io/javascript-tutorial/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://demirels-organization.gitbook.io/javascript-tutorial/classes/basics.md).

# Basics

```javascript
class Person {
  constructor(name, age) {
    this.name = name;
    this.age = age;
  }

  sayHello() {
    console.log(`Hello, my name is ${this.name} and I am ${this.age} years old.`);
  }
}

const person1 = new Person('John', 30);
const person2 = new Person('Jane', 28);

person1.sayHello(); // "Hello, my name is John and I am 30 years old."
person2.sayHello(); // "Hello, my name is Jane and I am 28 years old."

```

In this example, we define a class called `Person` with a `constructor` function that is used to create new objects from the class. The `constructor` function takes two arguments, `name` and `age`, and sets them as properties of the new object. The class also has a `sayHello` method that logs a greeting to the console.

We can then create new objects from the `Person` class using the `new` keyword and the `Person` constructor function. Each object created from the class will have its own unique properties, but they will all share the same methods defined in the class.