Problematic-code.js file

Problematic-Code.js

class Rectangle {
    constructor(w, h) {
        this.w = w;
        this.h = h;
    }
}

/*
 *  Write code that adds an 'area' method to the Rectangle class' prototype
 */

Rectangle.prototype.area = () => (this.w * this.h)

/*
 * Create a Square class that inherits from Rectangle and implement its class constructor
 */
class Square extends Rectangle {
    constructor(side) {
        super(side, side)
    }
}


if (JSON.stringify(Object.getOwnPropertyNames(Square.prototype)) === JSON.stringify(['constructor'])) {
    const rec = new Rectangle(3, 4);
    const sqr = new Square(3);

    console.log(rec.area());
    console.log(sqr.area());
} else {
    console.log(-1);
    console.log(-1);
}