html运行实例（js_set_instanceof）-搜寻教程库

代码示例：（标识：js_set_instanceof）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript Set</h1>

<p>instanceof 运算符返回 true：</p>

<p id="demo"></p>

<script>
// 创建新的 Set
const letters = new Set(["a","b","c"]);

// 显示 instanceof
document.getElementById("demo").innerHTML = letters instanceof Set;
</script>

</body>
</html>