objects.md

Objects

Create new types of objects

In order to create new types of objects we need constructor functions that can be called with the new operator.

Notice that it is a convention to call constructor function with a starting uppercase letter. Let's see an example:

function Car(id) {
    this.carId = id;
    this.start = function() {
        console.log('start: ' + this.carId);
    };
};

// instantiation
let car = new Car(123);

// method call
car.start();

Prototypes

Destructuring Objects

The same thing can be applied to objects:

let car = { id: 5000, style: 'convertible' };
let { id, style } = car;