JavaScript/실습
실습 - 3의배수찾기
yunajoe
2023. 1. 20. 15:58
나의풀이
<!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>
<h1>3의배수 찾기</h1>
<script>
let msg = prompt('몇 까지 3의 배수를 찾을까요?!');
var cnt = 0
for(let i=1; i<=msg; i++){
if(i%3 === 0){
cnt += 1
document.write(i + ',')
}
}
document.write('<br>')
document.write(msg + '까지의 3의 배수는 ' + cnt + '개 입니다')
</script>
</body>
</html>
해설풀이
<!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>
<h1>3의배수</h1>
<script>
let msg = prompt('몇 까지의 3의 배수를 찾을까요?!');
let cnt =0;
for(let i=1; i<=msg; i++){
if(i%3 === 0){
cnt += 1
document.write(i +',')
}
}
document.write('<br>')
document.write(msg + '까지의 3의배수는' + cnt + '개 입니다')
</script>
</body>
</html>