html运行实例（js_number_pos_infinity

代码示例：（标识：js_number_pos_infinity_1）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 数字</h1>

<h2>POSITIVE_INFINITY 属性</h2>

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

<script>
let x = Number.POSITIVE_INFINITY;
document.getElementById("demo").innerHTML = x;
</script>

</body>
</html>