JavaScript事件委託執行個體分析

 　　本文執行個體講述了JavaScript事件委託用法。分享給大家供大家參考。具體如下：

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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); } }); };

　　希望本文所述對大家的javascript程式設計有所協助。