代码示例:(标识:jsck_screen_availheight)
<!DOCTYPE html>
<html>
<body>

<h1>Window Screen 对象</h1>

<h2>availHeight 属性</h2>

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

<script>
height = screen.availHeight;
document.getElementById("demo").innerHTML = height + "px";
</script>

</body>
</html>
运行结果: