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最佳的addEvent事件綁定是怎樣誕生的_javascript技巧_腳本之家
在removeEvent 中遺漏了remove obj["e"+type+fn]。 總之不管怎么說(shuō),簡(jiǎn)單取勝。 結(jié)果一出,眾多參賽與評(píng)論者不服氣,很快又挑出了John的代碼的幾處毛病: addEvent中本身就使用了閉句,所以沒(méi)有根本解決IE內(nèi)存泄露的問(wèn)題。 沒(méi)有解決同類(lèi)型的事件可能被重復(fù)注冊(cè)而被IE重復(fù)執(zhí)行的問(wèn)題。 幾個(gè)高手于是提出了改進(jìn)性
www.dbjr.com.cn/article/286...htm 2025-5-16
window.addeventjs事件驅(qū)動(dòng)函數(shù)集合addEvent等_javascript技巧_腳本...
function addEvent(element, type, handler) { if (element.addEventListener) { element.addEventListener(type, handler, false); } else { // assign each event handler a unique ID if (!handler.$$guid) handler.$$guid = addEvent.guid++; // create a hash table of event types for the element ...
www.dbjr.com.cn/article/135...htm 2025-6-3
Flash AS3教程:ImageLoader類(lèi)_ActionScript教程_Flash教程_媒體動(dòng)畫(huà)...
private function addEvent():void{ loader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS,progressFun); loader.contentLoaderInfo.addEventListener(Event.COMPLETE,completeFun); } //結(jié)束偵聽(tīng) private function delEvent():void{ loader.contentLoaderInfo.removeEventListener(ProgressEvent.PROGRESS,progressFun); l...
www.dbjr.com.cn/flash/actionscript/40... 2025-5-22
javascript add event remove event_javascript技巧_腳本之家
// heavily based on the Quirksmode addEvent contest winner, John Resig // addEvent function addEvent(obj,type,fn){ if(obj.addEventListener) obj.addEventListener(type,fn,false); else if(obj.attachEvent){ obj["e"+type+fn]=fn; obj[type+fn]=function(){obj["e"+type+fn](window.event);...
www.dbjr.com.cn/article/140...htm 2025-6-4
jQuery源碼分析之Event事件分析_jquery_腳本之家
event.metaKey = event.ctrlKey; // Add which for click: 1 == left; 2 == middle; 3 == right // Note: button is not normalized, so don't use it if (!event.which && event.button) ⑨ event.which = (event.button & 1 ? 1 : (event.button & 2 ...
www.dbjr.com.cn/article/237...htm 2025-5-16
Javascript 事件流和事件綁定_javascript技巧_腳本之家
還有就是在支持DOM事件的瀏覽器里,focus和blur是只支持捕獲的,所以如果你如果用到我下面給出的addEvent函數(shù),在給元素綁定focus或則blur事件時(shí),bCapture一定要設(shè)置為true。那么這里就發(fā)生了一個(gè)問(wèn)題,IE是不支持捕獲的,那不是觸發(fā)不了這連個(gè)事件?呵呵,是個(gè)嚴(yán)重的問(wèn)題哦?不過(guò)在IE里使用focus和blur事件的時(shí)候,其實(shí)...
www.dbjr.com.cn/article/191...htm 2025-5-25
jQuery 數(shù)據(jù)緩存模塊進(jìn)化史詳細(xì)介紹_jquery_腳本之家
數(shù)據(jù)緩存系統(tǒng)最早應(yīng)該是jQuery1.2引入的,那時(shí)它的事件系統(tǒng)完成照搬DE大神的addEvent.js,而addEvent在實(shí)現(xiàn)有個(gè)缺憾,它把事件的回調(diào)都放到EventTarget之上,這會(huì)引發(fā)循環(huán)引用,如果EventTarget是window對(duì)象,又會(huì)引發(fā)全局污染。有了數(shù)據(jù)緩存系統(tǒng),除了規(guī)避這兩個(gè)風(fēng)險(xiǎn)外,我們還可以有效地保存不同方法產(chǎn)生的中間變量,而這些變量會(huì)...
www.dbjr.com.cn/article/319...htm 2025-5-28
JavaScript實(shí)現(xiàn)的日期控件具體代碼_javascript技巧_腳本之家
addEvent = function (o, e, f) {o.addEventListener ? o.addEventListener(e, f, false) : o.attachEvent('on'+e, function(){f.call(o)})}, getPos = function (el) { for (var pos = {x:0, y:0}; el; el = el.offsetParent) { ...
www.dbjr.com.cn/article/433...htm 2025-6-3
javascript tips提示框組件實(shí)現(xiàn)代碼_javascript技巧_腳本之家
function addEvent(el,type,fn){ //綁定事件 if(el.attachEvent) { el['e'+type+fn] = fn; //IE下拷貝元素引用,使this指向el對(duì)象而不是window el[type+fn] = function(){el['e'+type+fn](window.event);} el.attachEvent('on'+type, el[type+fn]); ...
www.dbjr.com.cn/article/253...htm 2025-6-5
javascript 處理事件綁定的一些兼容寫(xiě)法_javascript技巧_腳本之家
obj.attachEvent( "on"+type, function() { obj["e"+type+fn](); } ); } }; 另一個(gè)實(shí)現(xiàn) 復(fù)制代碼代碼如下: var addEvent = (function () { if (document.addEventListener) { return function (el, type, fn) { el.addEventListener(type, fn, false); ...
www.dbjr.com.cn/article/215...htm 2025-6-4