Object Type
					===========

number ==> numerals ==> 121, 1.02 etc.
string ==> '' or "" or ``
Boolean ==> true or false
undefined
null
arrays ==> [] or new Array()
Ex: a = [1,2,3,4,5,6]
log(a) ==> [1,2,3,4,5,6]

===========================
Form Registration:
==================
Name
Mail
Mobile
Password

application =====================> database
		API
		Name: ravi
		Mail: ravivraoinfs@gmail.com
		Mobile: 8977029779
		Password: Ravi123

request: google.com
response:
		

after the registration
	we can allow for login

at the time of login:
	username/mail/mobile:admin123
	password: admin123

application =========> database
		API/Sql

==> Object type is a collection datatype
is the collection of elements which can be defined with key and value pair format.
Syntax for key value pair:
	key-name : corresponding-value
==================================================
Creation of object type:
========================
==> four ways:
1) Using object literal:
========================
Syntax:
	let/var/const object-name = {key1:val1,key2:val2,key3:val3,...};

const book = {title:'To Kill a Mockingbird',
    author:"Harper Lee",
    yearOfPublished:1960,
    genres : ['Fiction','Drama'],
    availableCopies:0,
    isAvailable:function(){
        return this.availableCopies > 0;
    },
    borrow:function(){
        if(this.isAvailable()){
            this.availableCopies--;
            console.log("The Number of books remianing are = ",this.availableCopies);
        }
        else{
            console.log("The Book is not available.");
        }
    }
};

console.log(typeof book);
console.log(book);
console.log(book.title);
console.log(book.author);
console.log(book.yearOfPublished);
console.log(book.genres);
console.log(book.availableCopies);
console.log(book.isAvailable());
book.borrow();
=========================================================
2) using Object() constructor:
==============================
Syntax:
	let/var/const object-name = new Object();

Syntax for adding properties into an object:
	object-name.property-name = value;

const car = new Object();

console.log(typeof car);
console.log(car);

// adding properties into an object
car.make = "Toyota";
car.model = "Corolla";
car.year = 2023;

console.log(car);
===============================================
3) Using class:
===============

class Car{
    constructor(make,model,year,color){
        this.make = make;
        this.model = model;
        this.year = year;
        this.color = color;
    }
    describe(){
        return `${this.year} ${this.color} ${this.make} ${this.model}`;
    }
    startEngine(){
        return `${this.describe()} is starting...`;
    }
    stopEngine(){
        return `${this.describe()} is stopping...`; 
    }
}

const car1 = new Car("Tesla","Model3",2024,"red");
console.log(car1.describe());
console.log(car1.startEngine());
console.log(car1.stopEngine());