<script type="text/javascript">
function Student(name, korean, math, english, science){
this.name = name;
this.korean = korean;
this.math = math;
this.english = english;
this.science = science;
}
//프로토타입은
생성자
함수를
사용해
생성된
객체가
공통으로
가지는
공간
//prototype영역
호출
//메모리
영역의
효율성
증가
Student.prototype.getSum = function(){
return this.korean + this.math + this.english + this.science;
};
Student.prototype.getAverage = function(){
return this.getSum()/4;
};
Student.prototype.toString = function(){
return this.name + ', ' + this.getSum() + ', ' + this.getAverage();
};
var students = [];
students.push(new Student('홍길동', 99, 88, 55, 66));
students.push(new Student('일지매', 99, 77, 67, 78));
students.push(new Student('대장금', 45, 65, 65, 87));
students.push(new Student('금잔디', 99, 88, 55, 66));
students.push(new Student('하회탈', 99, 88, 55, 66));
students.push(new Student('곰탱이', 99, 80, 55, 66));
//출력
var output = '이름, 총점, 평균\n';
for(var i in students){
output += students[i].toString() + '\n';
}
alert(output);
</script>
</head>
<body>
</body>
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