index.html
<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF8">
<title>JavaScriptの勉強</title>
</head>
<body>
<h1>JavaScriptの勉強</h1>
<script>
// 条件分岐 (switch)
var direction = "right";
var x, y;
switch (direction) {
cace "right" :
x = x + 10;
break;
cace "left" :
x = x - 10;
break;
cace "up" :
y = y - 10;
break;
cace "down" :
y += 10; // y =y + 10;
break;
default:
// 例外処理
break;
}
</script>
</body>
</html>