basic_class.js

// var dog = {
//     name: 'Rex',
//     age: 2,
//     color: "brown",
// }

function Dog(name, breed, color) {
    this.name = name;
    // this keyword refers to the current object
    // this is the object that is created when the 
    // function is called with new keyword
    this.breed = breed;
    this.color = color;
} // whenever you use this inside a function 
// the function is called constructor function
// and the name of the function is the class name

const rex = new Dog('Rex', 'German Shepherd', 'brown');
// new in JS is used to create a new object
console.log(rex);

const lassie = new Dog('Lassie', 'Collie', 'white');
const buzo = new Dog('Buzo', 'Labrador', 'black');

// SPORTS is a class
// cricket is an object (or an instance of this class)
// tennis is an object (or an instance of this class)

function Sports(name, totalPlayers) {
this.game = name;
this.totalP = totalPlayers;

this.printTotalPlayers = function() {
    console.log(this.totalP);
}

}

const cricket = new Sports("Cricket", 11);
cricket.printTotalPlayers();

const tennis = new Sports("Tennis", 2);
tennis.printTotalPlayers();

this means object (instance of the class)