JavaScript事件委托实例分析

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：


var addEvent = function (elem, eventType, func) {
if ( elem.addEventListener )
addEvent = function (elem, eventType, func) {
elem.addEventListener(eventType, func, false);
};
else if ( elem.attachEvent )
addEvent = function (elem, eventType, func) {
elem.attachEvent('on' + eventType, func);
};
addEvent(elem, eventType, func);
};
var delegateEvent = function (elem, childElems, eventType, func, args) {
addEvent(elem, eventType, 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。


有用  |  无用 取消

猜你喜欢