1.事件委托的封装
function eveEnt(ele,cb){
return function(eve){
var e = eve || window.event;
var target = e.target || e.srcElement;
for(var i=0;i<ele.length;i++){
if(target === ele[i]){
cb.bind(target)();
}
}
}
}
2事件监听的封装 针对IE和正常浏览器
添加
萨达
function addEvent(ele,myevent,cb){
if(ele.attachEvent){
ele.attachEvent("on"+myevent,cb)
}else{
ele.addEventListener(myevent,cb,false)
}
}
addEvent(obox,"click",sayHello)
function sayHello(){
console.log("hello")
}
删除
function removeEvent(ele,myevent,cb){
if(ele.detachEvent){
ele.detachEvent("on"+myevent,cb)
}else{
ele.removeEventListener(myevent,cb,false);
}
}
removeEvent(obox,"click",sayHello)
3.事件冒泡 针对IE和正常浏览器
var e= eve || window.event;
if(e.stopPropagation){
e.stopPropagation()
}else{
e.cancelBubble = true
}
4.默认事件 针对IE和正常浏览器
var e= eve || window.event;
if(e.preventDefault){
e.preventDefault();
}else{
e.returnValue = false;
}