jquery的height()和javascript的height总结，js获取屏幕高度

jquery的各种高度

首先来说一说$(document)和$(window)，如下：

<code style="margin: 0px; padding: 0px; font-family: Menlo, Monaco, Consolas, 'Lucida Console', 'Courier New', 'Microsoft Yahei', monospace; background-color: transparent;"><span class="pln" style="color: rgb(0, 0, 0);">$</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">document</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">height</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="com" style="color: rgb(136, 0, 0);">//整个网页的高度</span><span class="pln" style="color: rgb(0, 0, 0);">$</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">window</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">height</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="com" style="color: rgb(136, 0, 0);">//浏览器可视窗口的高度</span><span class="pln" style="color: rgb(0, 0, 0);">$</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">window</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">scrollTop</span><span class="pun" style="color: rgb(102, 102, 0);">();</span><span class="com" style="color: rgb(136, 0, 0);">//浏览器可视窗口顶端距离网页顶端的高度（垂直偏移）</span></code>

用一句话理解就是：当网页滚动条拉到最低端时，

<code style="margin: 0px; padding: 0px; font-family: Menlo, Monaco, Consolas, 'Lucida Console', 'Courier New', 'Microsoft Yahei', monospace; background-color: transparent;"><span class="pln" style="color: rgb(0, 0, 0);">$</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">document</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">height</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln" style="color: rgb(0, 0, 0);"> </span><span class="pun" style="color: rgb(102, 102, 0);">==</span><span class="pln" style="color: rgb(0, 0, 0);"> $</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">window</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">height</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln" style="color: rgb(0, 0, 0);"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln" style="color: rgb(0, 0, 0);"> $</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">window</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">scrollTop</span><span class="pun" style="color: rgb(102, 102, 0);">()。</span></code>

注意，是拉到最低端！

当网页高度不足浏览器窗口时$(document).height()返回的是$(window).height()

假如您要获取整个网页的高度，不建议用$("html").height()、$("body").height()的高度，

原因：

$("body").height()：body可能会有边框，获取的高度会比$(document).height()小； $("html").height()：在不同的浏览器上获取的高度的意义会有差异，说白了就是浏览器不兼容。

说道这里，提及边框和margin还有padding，我们自然想到了jquery的另外的两个高度，那就是innerHeight()和outerHeight()

innerHeight()和outerHeight()不适用于window 和 document对象，对于window 和 document对象可以使用.height()代替。innerHeight()和outerHeight()主要用来获取标签的高度。

innerHeight()

<code style="margin: 0px; padding: 0px; font-family: Menlo, Monaco, Consolas, 'Lucida Console', 'Courier New', 'Microsoft Yahei', monospace; background-color: transparent;"><span class="pln" style="color: rgb(0, 0, 0);">innerHeight</span><span class="pun" style="color: rgb(102, 102, 0);">:高度＋补白</span><span class="pln" style="color: rgb(0, 0, 0);">outerHeight</span><span class="pun" style="color: rgb(102, 102, 0);">:高度＋补白＋边框，参数为</span><span class="kwd" style="color: rgb(0, 0, 136);">true</span><span class="pun" style="color: rgb(102, 102, 0);">时：高度＋补白＋边框＋边距</span></code>

innerHeight(value)

这个“value”参数可以是一个字符串（数字加单位）或者是一个数字,如果这个“value”参数只提供一个数字，jQuery会自动加上像素单位（px）。如果只提供一个字符串，任何有效的CSS尺寸都可以为高度赋值（就像100px, 50%, 或者 auto）。注意在现代浏览器中，CSS高度属性不包含padding, border, 或者 margin， 除非box-sizingCSS属性被应用。

jquery高度，放到浏览器中试一下

<code style="margin: 0px; padding: 0px; font-family: Menlo, Monaco, Consolas, 'Lucida Console', 'Courier New', 'Microsoft Yahei', monospace; background-color: transparent;"><span class="pln" style="color: rgb(0, 0, 0);">alert</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">$</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">window</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">height</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln" style="color: rgb(0, 0, 0);">                           </span><span class="com" style="color: rgb(136, 0, 0);">//浏览器当前窗口可视区域高度</span><span class="pln" style="color: rgb(0, 0, 0);">alert</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">$</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">document</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">height</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln" style="color: rgb(0, 0, 0);">                        </span><span class="com" style="color: rgb(136, 0, 0);">//浏览器当前窗口文档的高度</span><span class="pln" style="color: rgb(0, 0, 0);">alert</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">$</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">document</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">height</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln" style="color: rgb(0, 0, 0);">                </span><span class="com" style="color: rgb(136, 0, 0);">//浏览器当前窗口文档body的高度</span><span class="pln" style="color: rgb(0, 0, 0);">alert</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">$</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">document</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">outerHeight</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">true</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln" style="color: rgb(0, 0, 0);">  </span><span class="com" style="color: rgb(136, 0, 0);">//浏览器当前窗口文档body的总高度 包括border padding margin</span><span class="pln" style="color: rgb(0, 0, 0);">alert</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">$</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">window</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">width</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln" style="color: rgb(0, 0, 0);">                            </span><span class="com" style="color: rgb(136, 0, 0);">//浏览器当前窗口可视区域宽度</span><span class="pln" style="color: rgb(0, 0, 0);">alert</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">$</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">document</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">width</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln" style="color: rgb(0, 0, 0);">                        </span><span class="com" style="color: rgb(136, 0, 0);">//浏览器当前窗口文档对象宽度</span><span class="pln" style="color: rgb(0, 0, 0);">alert</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">$</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">document</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">width</span><span class="pun" style="color: rgb(102, 102, 0);">());</span><span class="pln" style="color: rgb(0, 0, 0);">                </span><span class="com" style="color: rgb(136, 0, 0);">//浏览器当前窗口文档body的宽度</span><span class="pln" style="color: rgb(0, 0, 0);">alert</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">$</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln" style="color: rgb(0, 0, 0);">document</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">).</span><span class="pln" style="color: rgb(0, 0, 0);">outerWidth</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">true</span><span class="pun" style="color: rgb(102, 102, 0);">));</span><span class="pln" style="color: rgb(0, 0, 0);">  </span><span class="com" style="color: rgb(136, 0, 0);">//浏览器当前窗口文档body的总宽度 包括border padding margin</span></code>

javascript的各种高度

<code style="margin: 0px; padding: 0px; font-family: Menlo, Monaco, Consolas, 'Lucida Console', 'Courier New', 'Microsoft Yahei', monospace; background-color: transparent;"><span class="pun" style="color: rgb(102, 102, 0);">网页可见区域宽[仅针对</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">]：</span><span class="pln" style="color: rgb(0, 0, 0);"> document</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">clientWidth</span><span class="pun" style="color: rgb(102, 102, 0);">网页可见区域高[仅针对</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">]：</span><span class="pln" style="color: rgb(0, 0, 0);"> document</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">clientHeight</span><span class="pun" style="color: rgb(102, 102, 0);">网页可见区域宽[仅针对</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">]：</span><span class="pln" style="color: rgb(0, 0, 0);"> document</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">offsetWidth </span><span class="pun" style="color: rgb(102, 102, 0);">(包括滚动条和边框，若滚动条和边框为</span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">，则和</span><span class="pln" style="color: rgb(0, 0, 0);">clientWidth</span><span class="pun" style="color: rgb(102, 102, 0);">相等)</span><span class="pln" style="color: rgb(0, 0, 0);"></span><span class="pun" style="color: rgb(102, 102, 0);">网页可见区域高[仅针对</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">]：</span><span class="pln" style="color: rgb(0, 0, 0);"> document</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">offsetHeight </span><span class="pun" style="color: rgb(102, 102, 0);">(包括滚动条和边框，若滚动条和边框为</span><span class="lit" style="color: rgb(0, 102, 102);">0</span><span class="pun" style="color: rgb(102, 102, 0);">，则和</span><span class="pln" style="color: rgb(0, 0, 0);">clientHeight</span><span class="pun" style="color: rgb(102, 102, 0);">相等)</span><span class="pln" style="color: rgb(0, 0, 0);"></span><span class="pun" style="color: rgb(102, 102, 0);">可视窗口宽度(包括滚动轴宽度)：</span><span class="pln" style="color: rgb(0, 0, 0);">window</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">innerWidth</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="pln" style="color: rgb(0, 0, 0);"> </span><span class="com" style="color: rgb(136, 0, 0);">//IE9+、Chrome、Firefox、Opera 以及 Safari</span><span class="pln" style="color: rgb(0, 0, 0);"></span><span class="pun" style="color: rgb(102, 102, 0);">可视窗口高度，不包括浏览器顶部工具栏：</span><span class="pln" style="color: rgb(0, 0, 0);"> window</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">innerHeight</span><span class="pun" style="color: rgb(102, 102, 0);">;</span><span class="com" style="color: rgb(136, 0, 0);">//IE9+、Chrome、Firefox、Opera 以及 Safari</span><span class="pln" style="color: rgb(0, 0, 0);"></span><span class="pun" style="color: rgb(102, 102, 0);">网页正文全文宽(不包括滚动轴的宽度)：</span><span class="pln" style="color: rgb(0, 0, 0);"> document</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">scrollWidth</span><span class="pun" style="color: rgb(102, 102, 0);">网页正文全文高：</span><span class="pln" style="color: rgb(0, 0, 0);">document</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">scrollHeight</span><span class="com" style="color: rgb(136, 0, 0);">//假如网页中没有滚动轴，document.body.scrollWidth和window.innerWidth相等，document.body.scrollHeight和window.innerHeight相等。</span><span class="pln" style="color: rgb(0, 0, 0);"></span><span class="pun" style="color: rgb(102, 102, 0);">网页被卷去的高：</span><span class="pln" style="color: rgb(0, 0, 0);"> document</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">scrollTop</span><span class="pun" style="color: rgb(102, 102, 0);">网页被卷去的左：</span><span class="pln" style="color: rgb(0, 0, 0);"> document</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">body</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">scrollLeft</span><span class="pun" style="color: rgb(102, 102, 0);">网页正文部分上：</span><span class="pln" style="color: rgb(0, 0, 0);"> window</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">screenTop</span><span class="pun" style="color: rgb(102, 102, 0);">网页正文部分左：</span><span class="pln" style="color: rgb(0, 0, 0);"> window</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">screenLeft</span><span class="pun" style="color: rgb(102, 102, 0);">屏幕分辨率的高（整个屏幕的高度）：</span><span class="pln" style="color: rgb(0, 0, 0);"> window</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">screen</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">height</span><span class="pun" style="color: rgb(102, 102, 0);">屏幕分辨率的宽（整个屏幕的宽度）：</span><span class="pln" style="color: rgb(0, 0, 0);"> window</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">screen</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">width</span><span class="pun" style="color: rgb(102, 102, 0);">屏幕可用工作区高度：</span><span class="pln" style="color: rgb(0, 0, 0);"> window</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">screen</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">availHeight</span><span class="pun" style="color: rgb(102, 102, 0);">屏幕可用工作区宽度：</span><span class="pln" style="color: rgb(0, 0, 0);"> window</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">screen</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">availWidth</span><span class="pun" style="color: rgb(102, 102, 0);">整个浏览器可用工作区高度：</span><span class="pln" style="color: rgb(0, 0, 0);"> window</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">outerHeight</span><span class="pun" style="color: rgb(102, 102, 0);">整个浏览器可用工作区宽度：</span><span class="pln" style="color: rgb(0, 0, 0);"> window</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln" style="color: rgb(0, 0, 0);">outerWidth</span></code>

结束语

注意，在运用jquery的innerHeight()和outerHeight()的时候，可能会有浏览器的兼容问题，不同浏览器出现不同高度，总之，实践得真知，你可以测试一下，写几个小的demo，总结一下！