// Prototypes are an extension for objects in javascript // we use to encapsulate certain functionality to an Object (like a Class)

// first create an Object Person // that receive the name and lastName

function Person (firstName, lastName) { this.firstName = firstName; this.lastName = lastName; }

// We user the prototype keyword to add some functionality to this Person Object

// add a method getName that return the name Person.prototype.getName = function () { return this.firstName; };

// add a method getLastName that return the lastName Person.prototype.getLastName = function () { return this.lastName; };

// add a method getFullName that return the name + lastName Person.prototype.getFullName = function () { return this.firstName + " " + this.lastName; };

// add a method getFormalName Person.prototype.getFormalName = function () { return this.lastName + ", " + this.firstName; };

// these methods appear in the proto property of an Object instance of Person

const max = new Person("Max", "Payne");

console.log(max.getName()); // [out] Max

console.log(max.getLastName()); // [out] Payne

console.log(max.getFullName()); // [out] Max Payne

console.log(max.getFormalName()); // [out] Payne, Max