<!DOCTYPE html>
<html lang="ko">
<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>JS09.리턴.html</title>
<script>
var total=0, avg=0;
var subject = ['국어', '영어', '수학'];
var getTotal = function(){
for(var i=0; i<subject.length; i++) {
total += Number(prompt(subject[i]+'과목의 점수를 입력하세요.', '0'));
}
return total;
}
var getAvg = function(){
avg = total/subject.length;
return Math.round(avg); //평균을 반올림 처리
}
document.write('총점: '+getTotal()+'점<br>');
document.write('평균: '+getAvg()+'점');
</script>
</head>
<body>
</body>
</html>