[19장] 프로토타입 about js-deep-dive-study HOT 4 OPEN

const Person = (function () {
function Person(name) {
	this.name = name;
	}

Person.prototype.sayHello = function() {
	console.log(`Hi! My Name is ${this.name}`);
	}

return Person;
}());

const me = new Person('Lee');

me.sayHello = function() {
	console.log(`Hey! My Name is ${this.name}`)
}

me.sayHello(); // ?

function Study(subject) {
  this.subject = subject
}
Study.prototype.getStudySubject = function () {
  console.log(`Today's Study is ${this.subject}`);
}

Study.person = 'dongwoo';
Study.getPerson = function () {
  console.log(this.person)
}
const jsStudy = new Study('javaScript');
Stduy.getPerson(); // -> ?
jsStudy.getPerson();  // -> ?

function Person(name) {
   this.name = name
}

const me = new Person('Lee')

console.log(me instanceof Person); // <- 1.
console.log(me instanceof Object); // <- 2.