상속

상속

 

function person(name){

	this.name = name;

	this.interduce = function(){

	return 'My name is' + this.name;

}

}



let p1 = new person("honey")

console.log(p1) // My name is honey



function person() {
	this.name = name;
}

person.prototype.name = null;

person.prototype.intorduce = function () {
	return "My name is" + this.name;

};



let p1 = new person("honey");
console.log(p1);



상속의 사용방법

function person() {

	this.name = name;

}

person.prototype.name = null;
	person.prototype.intorduce = function () {
	return "My name is" + this.name;
};



function programmer(name) {
	this.name = name;
}

programmer.prototype = new person();



let p1 = new programmer("honey");

console.log(p1); // My name is honey



person을 programmer에 할당하면 programmer 에서 person의 객체를 사용할수 있다.



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



Person.prototype.name = null;

Person.prototype.introduce = function () {
	return "My name is " + this.name;
};



function Programmer(name) {
	this.name = name;
}

Programmer.prototype = new Person();

Programmer.prototype.coding = function () {
	return "hello world";
};

function design(name) {
	this.name = name;
}

design.prototype = new Person();

design.prototype.designs = function () {
	return "art";
};



let p1 = new Programmer("honey");

let p2 = new design("kikiki");



console.log(p1.introduce()); // My name is honey

console.log(p2.introduce()); // My name is kikiki



console.log(p1.coding()); // hello world

console.log(p2.designs()); // hello world