classes.js

//ES6

// class User{
//     constructor(username,email,password){
//         this.username = username;
//         this.email = email;
//         this.password = password
//     }

//     encryptPassword(){
//         return `${this.password}abc`
//     }
//     changeUserName(){
//         return `${this.username.toUpperCase()}`
//     }
// }
// const chai = new User("gauri","njndjn@nkjn.com","123")
// console.log(chai.encryptPassword());
// console.log(chai.changeUserName());

//behind the scene
function User(username,email,password){
    this.username = username;
    this.email = email;
    this.password = password
}
User.prototype.encryptPassword = function(){
    return`${this.password}abc`
}
User.prototype.changeUserName = function(){
    return`${this.password}abc`
}
const tea = new User("tea","njhgyddn.com","123")
console.log(tea.encryptPassword());
console.log(tea.changeUserName());