//OOP in javascript
        function Car(speed){
            this.speed = speed;
            this.getSpeed = function() {
                return "Speed of the Car: " + this.speed
            }
        }

        //Instanzierung
        var car1 = new Car(10);
        console.log(car1);
        console.log(car1.speed);
        console.log(car1.getSpeed());

        //Adding Properties and Methods to an Object
        var car2 = new Car(20);
        car2.color = "red";
        car2.getColor = function(){
            return "Color of the Car: " + this.color
        }

        console.log(car1);
        console.log(car1.color);
        console.log(car1.getColor);

        console.log(car2);
        console.log(car2.color);
        console.log(car2.getColor());

        //Adding Properties and Methods to a Prototyp
        Car.prototype.weight = "100";
        var car3 = new Car(30);
        console.log(car3);