Getters and setter on rectangle and circle objects

getterSetter.js

const rectangle = {
  a: 4,
  b: 5,
  get perimeter() {
    return this.a * 2 + this.b * 2;
  },
  get area() {
    return this.a * this.b;
  },
};

const circle = {
  radius: 5,
  get diameter() {
    return this.radius * 2;
  },
  set diameter(num) {
    this.radius = num / 2;
  },
  get perimeter() {
    return 2 * Math.PI * this.radius;
  },
  set perimeter(num) {
    this.radius = num / Math.PI / 2;
  },
  get area() {
    return Math.PI * this.radius**2;
  },
  set area(num) {
    this.radius = Math.sqrt(num / Math.PI)
  }  
};