function Vehicle(make, model, year) {
  this.make = make;
  this.model = model;
  this.year = year;
  this.speed = 0;
}

Vehicle.prototype.accelerate = function (amount) {
  this.speed += amount;
  return this;
};

Vehicle.prototype.describe = function () {
  return `${this.year} ${this.make} ${this.model} going ${this.speed}km/h`;
};

function ElectricVehicle(make, model, year, range) {
  Vehicle.call(this, make, model, year);
  this.range = range;
}

ElectricVehicle.prototype = Object.create(Vehicle.prototype);
ElectricVehicle.prototype.constructor = ElectricVehicle;

ElectricVehicle.prototype.describe = function () {
  return Vehicle.prototype.describe.call(this) + ` | Range: ${this.range}km`;
};

const car = new ElectricVehicle("Tesla", "Model 3", 2023, 500);
car.accelerate(60).accelerate(40);

console.log(car.describe());
console.log(car instanceof ElectricVehicle);
console.log(car instanceof Vehicle);
console.log(car.constructor === ElectricVehicle);