how to call an object property value in javascript code example

Example 1: javascript object

var	person = {
	first_name : "Marty",
  	last_name : "Mcfly",
	born : 1968,
	died : 1933,
    lovers: ["Jennifer Parker","Baines McFly"]
};

Example 2: js create object with properties

var mycar = new Car('Eagle', 'Talon TSi', 1993);

Example 3: js create object with properties

function Car(make, model, year) {
  this.make = make;
  this.model = model;
  this.year = year;
}