[英]Get page height in JS (Cross-Browser)
在跨浏览器兼容的JS中获取实际页面(而非窗口)高度的最佳方法是什么?
我已经看到了几种方法,但是它们都返回不同的值...
self.innerHeight
或document.documentElement.clientHeight
或document.body.clientHeight
还是其他?
一种可行的方法是:
var body = document.body,
html = document.documentElement;
var height = Math.max( body.scrollHeight, body.offsetHeight,
html.clientHeight, html.scrollHeight, html.offsetHeight );
当前页面/文档的高度取决于供应商(IE / Moz / Apple / ...)的实现,并且没有标准且一致的结果跨浏览器。
查看JQuery .height()方法;
if ( jQuery.isWindow( elem ) ) {
// Everyone else use document.documentElement or document.body depending on Quirks vs Standards mode
// 3rd condition allows Nokia support, as it supports the docElem prop but not CSS1Compat
var docElemProp = elem.document.documentElement[ "client" + name ],
body = elem.document.body;
return elem.document.compatMode === "CSS1Compat" && docElemProp ||
body && body[ "client" + name ] || docElemProp;
// Get document width or height
} else if ( elem.nodeType === 9 ) {
// Either scroll[Width/Height] or offset[Width/Height], whichever is greater
return Math.max(
elem.documentElement["client" + name],
elem.body["scroll" + name], elem.documentElement["scroll" + name],
elem.body["offset" + name], elem.documentElement["offset" + name]
);
nodeType === 9表示DOCUMENT_NODE: http : //www.javascriptkit.com/domref/nodetype.shtml,所以没有JQuery代码解决方案应类似于:
var height = Math.max(
elem.documentElement.clientHeight,
elem.body.scrollHeight, elem.documentElement.scrollHeight,
elem.body.offsetHeight, elem.documentElement.offsetHeight)
var width = window.innerWidth ||
html.clientWidth ||
body.clientWidth ||
screen.availWidth;
var height = window.innerHeight ||
html.clientHeight ||
body.clientHeight ||
screen.availHeight;
应该是实现它的一种好方法。
试试这个,不用jQuery
//Get height
var myWidth = 0, myHeight = 0;
if (typeof (window.innerWidth) == 'number') {
myWidth = window.innerWidth;
myHeight = window.innerHeight;
} else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
myWidth = document.documentElement.clientWidth;
myHeight = document.documentElement.clientHeight;
} else if (document.body && (document.body.clientWidth || document.body.clientHeight)) {
myWidth = document.body.clientWidth;
myHeight = document.body.clientHeight;
}
希望这对您有所帮助。
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