-- 插入JS代码 -->2122functionfn(e){23switch(e.type){24case'click':25console.log('这是一个点击事件');26break;27case'mouseout':28console.log('这是鼠标移出事件');29break;30case'mouseover':31console.log('这是鼠标悬浮事件');32}33}34//获取三个盒子id,并给三个盒子注册点击事件35varbox1...
}elseif(typeofdocument.attachEvent !== 'undefined') {//IEutils.addListener =function(el, type, fn) { el.attachEvent('on' +type, fn); }; utils.removeListener=function(el, type, fn) { el.detachEvent('on' +type, fn); }; }else{//其它旧浏览器utils.addListener =function(el, type,...
根据上面的代码,event handler调用的时候会显示传递receiver对象作为this,但是进入了bound function入口点后,会从bound function获取缓存的this对象去调用实际的函数,而调用event handler/listener传递的receiver就直接扔掉了,所以boundFunction对this的绑定优先级更高。
JavaScriptคัดลอก WinJS.Navigation.removeEventListener(eventType, listener, useCapture); Parameters eventType Type:String The type (name) of the event. listener Type:Function The listener to remove. useCapture Type:Boolean Specifies whether or not to initiate capture. ...
原文中这一块过于依赖jQuery库,这里我参考了martinfowler的事件聚合(Event Aggregator),(原文http://martinfowler.com/eaaDev/EventAggregator.html或参考汤姆大叔的深入理解javascript系列),有兴趣的同学可以看看 1 function Event(name) { 2 var handlers = []; ...
varutils={addListener:null,removeListener:null}; 复制代码 实现代码如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 if(typeofwindow.addEventListener==='function'){utils.addListener=function(el,type,fn){el.addEventListener(type,fn,false);};}elseif(typeofdocument.attachEvent!=='undefined'){...
JavaScript varoutput;varpage = WinJS.UI.Pages.define("/html/scenario6.html", {ready:function(element, options){ output =document.getElementById('output'); WinJS.Resources.processAll(output);// Refetch string resourcesWinJS.Resources.removeEventListener("contextchanged", refresh,false); WinJS....
编译Javascript源码得到的字节码流(Bytecode Array)不能直接执行,绑定了入口(Entry)和上下文(Context)的字节码流才能被解释器(Ignition)执行,绑定了“入口+上下文”的字码流称为JSFunction,JSFunction是Ignition可以执行的实例。读懂JSFunction,可以深入了解Igntion的工作原理,更有助于在脑海中、在演草纸上擘画出字节码的...
Failure of onchange event triggering in Javascript function, Non-functioning Ajax onchange, JQuery Onchange Event Fails to Function on Production but Functions on Local Instance: A Revised Title
removeListener:null}; 实现代码如下:if(typeofwindow.addEventListener === 'function') { utils.addListener=function(el, type, fn) { el.addEventListener(type, fn,false); }; }elseif(typeofdocument.attachEvent !== 'undefined') {//IEutils.addListener =function(el, type, fn) { ...