1. for문
- for문은 사람이 직접 처리하기에 부담스러운 반복적인 작업을 처리하기에 매우 용이
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
var sum = 0;
for (var i=1; i<=100; i ++) {
sum += i;
}
document.write("<h1>1부터 100까지의 합은 "+ sum + "입니다.</h1>")
</script>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
for (var i=1; i<10; i ++) {
var j=7*i;
document.write("<p>7 *" + i + " = " + j + "</p>");
}
</script>
</body>
</html>
2. while문
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
var sum = 0;
var i = 1;
while (i<=100) {
sum += i;
i++;
}
document.write("<h1>1부터 100까지의 합은 " + sum + "입니다. </h1>")
</script>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
var i = 1;
while (i<10) {
var j = 7*i;
document.write("<p>7 * " + i + " = " + j + "</p>");
i++;
}
</script>
</body>
</html>
