jQuery // var theHeight = 窗口高度减去 50px？

jQuery // var theHeight = window height minus 50px?

提问by Ariel

I am getting the window height like this:

我得到这样的窗口高度：

var theHeight = "innerHeight" in window 
               ? window.innerHeight
               : document.documentElement.offsetHeight; 

I need a var that is theHeight minus 50px

我需要一个高度减去 50px 的变量

How do I get that?

我怎么得到它？

Thanks!

谢谢！

回答by GregL

If you are using jQuery as your tag indicates, you can just use:

如果您按照标签指示使用 jQuery，则可以使用：

var theHeight = $(window).height() - 50;

回答by Matthew Blancarte

This should do it. Just pop it on the next line.

这应该这样做。只需在下一行弹出它。

theHeight -= 50;