# 객체 생성자 함수
> function 함수명(매개변수1, 매개변수2,......){\
> this 속성명 = 새 값;\
> this 함수명 = function(){\
> //자바스크립트 실행코드\
> }\
> }\
> let 참조 변수(인스턴스 네임) = new 함수명(); //객체 생성\
> let 참조 변수 = { 속성 : 새 값, 함수명 : function(){}}
## 객체 생성자 표기법
```javascript
function obj5(a,b){
this.a = a;
this.b = b;
this.c = function(){
return a * b;
}
}
let result1 = new obj5(100,200);
let result2 = new obj5("자바스크립트", "실행했습니다.");
document.write(result1.a);
document.write(result1.b);
document.write(result1.c());
document.write(result2.a);
document.write(result2.b);
//10020020000자바스크립트실행했습니다.
```
```javascript
function CheckWeight(name, height, weight){
this.userName = name;
this.userHeight = height;
this.userWeight = weight;
this.minWeight;
this.maxWeight;
this.getInfo = function(){
let str = "";
str += "이름: " + this.userName + ", ";
str += "키: " + this.userHeight + ", ";
str += "몸무게: " + this.userWeight + ",";
return str;
}
this.getResult = function(){
this.minWeight = (this.userHeight - 100) * 0.9 -5;
this.maxWeight = (this.userHeight - 100) * 0.9 +5;
if( this.userWeight > this.minWeight && this.userWeight <= this.maxWeight){
return "정상 몸무게입니다.";
} else if (this.userWeight < this.minWeight){
return "살좀 찌세요~~.";
}else{
return "살좀 빼세요~~.";
}
}
}
let hwang = new CheckWeight ("웹쓰",170,82);
let lee = new CheckWeight ("웹와이",190,90);
document.write(hwang.getInfo());
document.write(hwang.getResult());
```
```javascript
Document
```
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