about js class code example

Example 1: how to create a class javascript

class Person {
	constructor(name, age) {
		this.name = name;
		this.age = age;
	}
	displayInfo() {
		return this.name + ' is' + this.age + " years old";
	}
}

const Anthony = new Person('Anthony', 32);

Example 2: javascript classes

class Rectangle {
  constructor(height, width) {
    this.height = height;
    this.width = width;
  }
  // Getter
  get area() {
    return this.calcArea();
  }
  // Method
  calcArea() {
    return this.height * this.width;
  }
}

const square = new Rectangle(10, 10);

console.log(square.area); // 100