class Polygon {
constructor() {
this.name = "Polygon";
}
}
class Square extends Polygon {
constructor() {
super();
}
}
class Rectangle {}
Object.setPrototypeOf(Square.prototype, Rectangle.prototype);
console.log(Object.getPrototypeOf(Square.prototype) === Polygon.prototype); //false
console.log(Object.getPrototypeOf(Square.prototype) === Rectangle.prototype); //true
let newInstance = new Square();
console.log(newInstance.name); //Polygon
Polygon
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