jQuery $(window).height()返回文档高度 [英] jquery $(window).height() is returning the document height
问题描述
我确定我正在犯一个简单的错误，但我只是在警告$(window).height()，它返回的值与$(document).height()相同.
I'm sure there is a simple error I'm making, but I am simply alerting $(window).height() and it returns the same value as $(document).height().
我正在使用13英寸的MBA，浏览器的窗口高度在780px-820px(大约)之间达到最大值时，但每次返回的窗口高度都与文档高度相同.在每种情况下，我都在网站上工作超过1000像素.
I am on a 13" MBA and my window height of my browsers when maximised between 780px - 820px (roughly) but each time it returns a window height identical to that of document height. In every case on the site I am working on it is over 1000px.
这是怎么回事?
alert($(window).height());
alert($(document).height());
推荐答案
在没有doctype标签的情况下，Chrome会为两个调用报告相同的值.
With no doctype tag, Chrome reports the same value for both calls.
添加像<!DOCTYPE html>这样的严格doctype会使这些值按所宣传的那样工作.
Adding a strict doctype like <!DOCTYPE html> causes the values to work as advertised.
doctype标记必须是文档中的非常第一件事.例如，即使它没有呈现任何内容，您也不能在其之前输入任何文本.
The doctype tag must be the very first thing in your document. E.g., you can't have any text before it, even if it doesn't render anything.
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