<!DOCTYPE html>
<html>
<body>
<h1>JavaScript 配列</h1>
<p>JSON.stringify は配列を文字列化できます。</p>
<p id="demo"></p>
<script>
const arr = ["John", "Peter", "Sally", "Jane"];
document.getElementById("demo").innerHTML = JSON.stringify(arr);
</script>
</body>
</html>
