js_practice/2_class_3-1.html at master · 200wonman/js_practice · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>

    <script>

       // Getter and setters
        /*
            call stack 초과 오류에서 해결방법.


       */
       class User {
        constructor(firstName, lastName, age){
            this.firstName = firstName;
            this.lastName = lastName;
            this.age = age;
        }

        // getter와 setter에 쓰이는 변수들이 이름이 같아서 호출되는 문제니
        // 살짝 바꿔주면 된다.

        get age() {
            return this._age;
        }

        set age(value) {
            this._age = value<0 ? 0:value;
        }

       }

       const user1 = new User ('juye','kim',-1);
       console.log(user1.age);


    </script>

</body>
</html>