本文实例讲述了JavaScript事件委托用法。分享给大家供大家参考。具体如下:
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var addEvent = function (elem,eventType,func) {
if ( elem.addEventListener )
addEvent = function (elem,func) {
elem.addEventListener(eventType,func,false);
};
else if ( elem.attachEvent )
addEvent = function (elem,func) {
elem.attachEvent('on' + eventType,func);
};
addEvent(elem,func);
};
var delegateEvent = function (elem,childElems,args) {
addEvent(elem,function (e) {
var evt = e || window.event;
var elem = evt.target || evt.srcElement;
if ( elem.nodeName.toLowerCase() == childElems.toLowerCase() ) {
func(elem,args);
}
});
};
希望本文所述对大家的javascript程序设计有所帮助。