WebProgramming/Week4.html at main · huheyun/WebProgramming · GitHub

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<!DOCTYPE html>

<head>
    <meta charset="UTF-8">
    <title>객체 생성</title>
    <script>
        // 직접 객체 생성
        let direct = new Object();

        direct.korName = "웹프로그래밍";
        direct.engName = "Web Programming";
        direct.classCode = "V024003";
        direct.nStudent = 0;

        direct.register = function(){
            this.nStudent++;
        }
        direct.unregister = function(){
            this.nStudent--;
        }
        direct.getStudentCount = function(){
            return this.nStudent;
        }

        // 리터럴 표기법
        let literal = {
            korName: "클라우드컴퓨팅",
            engName: "Cloud Computing",
            nStudent: 0,

            register: function () { this.nStudent++; },
            unregister: function () { this.nStudent--; },
            getStudentCount: function () { return this.nStudent; }
        };

        // 프로토타입
        function Prototype(korName,engName,nStudent){
            this.korName = korName;
            this.engName = engName;
            this.nStudent = nStudent;

            this.register = function () {this.nStudent++;}
            this.unregister = function () {this.nStudent--;}
            this.getStudentCount = function () {return this.nStudent;}
        }
    </script>
</head>

<body>
    <h2>1. 직접 객체 만들기</h2>
    <script>
        document.write("교과목 이름 = " + direct.korName + "<br>");
        document.write("교과목 영문 이름 = " + direct.engName + "<br>");
        document.write("등록 학생 수 = " + direct.getStudentCount() + "<br>");
        direct.register();
        document.write("after register, 등록 학생 수 = " + direct.getStudentCount() + "<br>");
    </script>
    <hr>
    <h2>2. 리터럴 표기법</h2>
    <script>
        document.write("교과목 이름 = " + literal.korName + "<br>");
        document.write("교과목 영문 이름 = " + literal.engName + "<br>");
        document.write("등록 학생 수 = " + literal.getStudentCount() + "<br>");
        literal.register();
        document.write("after register, 등록 학생 수 = " + literal.getStudentCount() + "<br>");
    </script>
    <hr>
    <h2>3. Prototype</h2>
    <script>
        let prototype = new Prototype("프로그래밍언어론","Programming Langauges",0);

        document.write("교과목 이름 = " + prototype.korName + "<br>");
        document.write("교과목 영문 이름 = " + prototype.engName + "<br>");
        document.write("등록 학생 수 = " + prototype.getStudentCount() + "<br>");
        prototype.register();
        document.write("after register, 등록 학생 수 = " + prototype.getStudentCount() + "<br>");
    </script>
</body>