Creating a JavaScript Objects

JavaScript Objects.js

/* Creates a single object, using an object literal.
 * An object literal is a list of name:value pairs 
   (like age:36) inside curly braces {}.
*/

let myObjectPerson = { name: 'Juan', age: 36, sayHello: function (){
    console.log("Hello, I am " + this.name + " and I am " +
		this.age + " years old.");}
	       };

myObjectPerson.sayHello();

// Creates an empty JavaScript object using new Object()
let myObjectPerson1 =  new Object();

myObjectPerson1.name = "Juan";
myObjectPerson1.age = 36;
myObjectPerson1.sayHello = function (){
    console.log("Hello, I am " + this.name + " and I am " +
		this.age + " years old.");

};

myObjectPerson1.sayHello();

// JavaScript Object Prototypes

function Person (name, age){
    this.name = name;
    this.age = age;
    this.sayHello = function (){
	console.log("Hello, I am " + this.name + " and I am " +
		    this.age + " years old.");
    }
}

let myObjectPerson2 = new Person("Juan", 36);
myObjectPerson2.sayHello();

/*
 * A JavaScript class is not an object.
 * It is a template for JavaScript objects.
 */

class Person1{
    constructor(name, age){
	this.name = name;
	this.age = age;
    }
    sayHello (){
	console.log("Hello, I am " + this.name + " and I am " +
		    this.age + " years old.");
    }
}
// When you have a class, you can use the class to create objects:
let myObjectPerson3 = new Person1("Juan", 36);

myObjectPerson3.sayHello();