Constructor Pattern sample with JS

ConstructorPattern.js

function Car(config) {
    this.name = config.name;
    this.engineSize = config.engineSize;
	
    this.toString = function () {
    return this.name + " has engine of " + this.engineSize + "cc";
    };

    this.start = function () {
    return this.name + " start engine";
    };

}


// create new instances of the car
var vitz = new Car({name:"Vitz", engineSize: 1000});
var prius = new Car( {name: "Prius", engineSize: 1800});

//now try our cars that is created
vitz.toString(); // --> Vitz has engine of 1000cc
prius.toString();  //--> Prius has engine of 1800cc
vitz.start(); //-->  Vitz start engine