상속.js

// Vehicle을 만들어서 다른 것들에 상속

class Vehicle{
  constructor(name, wheel){
    this.name = name
    this.wheel = wheel
  }
}

const myVehicle = new Vehicle('운송수단', 2)
console.log(myVehicle)



class Bicycle extends Vehicle{    // extends : 확장(상속)
  constructor(name, wheel){
    super(name, wheel)
  }
}
const myBicycle = new Bicycle('삼천리', 2)
const daughtersBicycle = new Bicycle('세발', 3)
console.log(myBicycle)
console.log(daughtersBicycle)



class Car extends Vehicle{
  constructor(name, wheel, license){  // license 추가, 확장
    super(name, wheel)
    this.license = license
  }
}
const myCar = new Car('벤츠', 4, true)
const daughtersCar = new Car('포르쉐', 4, false)
console.log(myCar)
console.log(daughtersCar)