一区二区久久-一区二区三区www-一区二区三区久久-一区二区三区久久精品-麻豆国产一区二区在线观看-麻豆国产视频

window.onload 加載完畢的問題及解決方案(下)

接上篇,其它方法:
一、在IE中還可以在onreadystatechange事件里進行判斷
http://www.thefutureoftheweb.com/blog/adddomloadevent
這里有Jesse Skinner寫了一段獨立的腳本函數來解決各種瀏覽器的onload問題,。
http://img.jb51.NET/jslib/adddomloadevent.js
復制代碼 代碼如下:
/*
* (c)2006 Jesse Skinner/Dean Edwards/Matthias Miller/John Resig
* Special thanks to Dan Webb's domready.js Prototype extension
* and Simon Willison's addLoadEvent
*
* For more info, see:
* http://www.thefutureoftheweb.com/blog/adddomloadevent
* http://dean.edwards.name/weblog/2006/06/again/
* http://www.vivabit.com/bollocks/2006/06/21/a-dom-ready-extension-for-prototype
* http://simon.incutio.com/archive/2004/05/26/addLoadEvent
*
*
* To use: call addDOMLoadEvent one or more times with functions, ie:
*
* function something() {
* // do something
* }
* addDOMLoadEvent(something);
*
* addDOMLoadEvent(function() {
* // do other stuff
* });
*
*/

addDOMLoadEvent = (function(){
// create event function stack
var load_events = [],
load_timer,
script,
done,
exec,
old_onload,
init = function () {
done = true;

// kill the timer
clearInterval(load_timer);

// execute each function in the stack in the order they were added
while (exec = load_events.shift())
exec();

if (script) script.onreadystatechange = '';
};

return function (func) {
// if the init function was already ran, just run this function now and stop
if (done) return func();

if (!load_events[0]) {
// for Mozilla/Opera9
if (document.addEventListener)
document.addEventListener("DOMContentLoaded", init, false);

// for InterNET Explorer
/*@cc_on @*/
/*@if (@_win32)
document.write("<script id=__ie_onload defer src="http://0" src="http://0"><//scr"+"ipt>");
script = document.getElementById("__ie_onload");
script.onreadystatechange = function() {
if (this.readyState == "complete")
init(); // call the onload handler
};
/*@end @*/

// for Safari
if (/WebKit/i.test(navigator.userAgent)) { // sniff
load_timer = setInterval(function() {
if (/loaded|complete/.test(document.readyState))
init(); // call the onload handler
}, 10);
}

// for other browsers set the window.onload, but also execute the old window.onload
old_onload = window.onload;
window.onload = function() {
init();
if (old_onload) old_onload();
};
}

load_events.push(func);
}
})();

二、另外還有在IE中的doScroll的,這是種方法只對IE有作用,而且它是一種hack方法。

在MSDN:About Element Behaviors 我們可以看到
復制代碼 代碼如下:
When the ondocumentready event fires, the document has been completely parsed and built. Initialization code should be placed here if the component needs to navigate the primary document structure. The ondocumentready event notifies the component that the entire page is loaded, and it fires immediately before the onload event fires in the primary document.
A few methods, such as doScroll, require the primary document to be completely loaded. If these methods are part of an initialization function, they should be handled when the ondocumentready event fires.

http://Javascript.nwbox.com/IEContentLoaded/
復制代碼 代碼如下:
/*
*
* IEContentLoaded.js
*
* Author: Diego Perini (diego.perini at gmail.com) NWBOX S.r.l.
* Summary: DOMContentLoaded emulation for IE browsers
* Updated: 05/10/2007
* License: GPL/CC
* Version: TBD
*
*/

// @w    window reference
// @fn    function reference
function IEContentLoaded (w, fn) {
    var d = w.document, done = false,
    // only fire once
    init = function () {
        if (!done) {
            done = true;
            fn();
        }
    };
    // polling for no errors
    (function () {
        try {
            // throws errors until after ondocumentready
            d.documentElement.doScroll('left');
        } catch (e) {
            setTimeout(arguments.callee, 50);
            return;
        }
        // no errors, fire
        init();
    })();
    // trying to always fire before onload
    d.onreadystatechange = function() {
        if (d.readyState == 'complete') {
            d.onreadystatechange = null;
            init();
        }
    };
}

在jQuery的源碼中,針對Mozilla, Opera 和webkit用的是DOMContentLoaded,也就是上一篇中第一種;

而對IE用的是doScroll的方法。

JavaScript技術window.onload 加載完畢的問題及解決方案(下),轉載需保留來源!

鄭重聲明:本文版權歸原作者所有,轉載文章僅為傳播更多信息之目的,如作者信息標記有誤,請第一時間聯系我們修改或刪除,多謝。

主站蜘蛛池模板: 2022国产91精品久久久久久 | 好吊妞视频haodiaoniucom | 天天躁日日躁狠狠躁中文字幕老牛 | 亚洲一区二区视频 | 欧美黑人巨大xxxxx视频 | 草草视频在线观看最新 | 一区二区中文字幕 | 成年美女黄网站色大片软件 | 玖玖精品在线 | 久久婷婷五综合一区二区 | 99视频都是精品热在线播放 | 国产在线观看一区二区三区四区 | 97视频国产| 五月婷婷丁香在线 | 亚洲免费午夜视频 | 欧美播播 | 天天综合网天天综合色不卡 | 亚洲一区中文 | 色老板在线看 | 99在线观看视频免费 | 久婷婷| 99久久精品免费看国产一区二区三区 | 成人亚洲国产综合精品91 | 久草免费在线色站 | 免费视频国产 | 日韩 国产 欧美视频一区二区三区 | 美女黄的全免费 | 精品色综合 | 色视网站 | 国产精品成人观看视频免费 | 久久韩国精品韩国专区 | 婷婷激情五月 | 久久综合久久综合久久综合 | 99pao在线视频精品免费 | 激情视频区 | 欧美日韩国产一区二区三区不卡 | 久久婷婷五色综合夜啪 | 午夜小视频网站 | 精品国产第一国产综合精品gif | 视色4se视频在线观看 | 日韩中文字幕精品久久 |