html运行实例（eg_js_number_positive_infinity

代码示例：（标识：eg_js_number_positive_infinity_1）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript Number 对象属性</h1>

<p>POSITIVE_INFINITY</p>

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

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

</body>
</html>