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addEventListener兼容问题？？

监听事件addEventListener不兼容怎么处理啊……

齐7

2015-11-04

源自：鼠标拖拽效果 8-1

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1 回答

李晓健
2015-11-07

var addEvent=(function(){
    if(document.addEventListener){
        return function(el,type,fn){
            if(el.length){
                for(var i=0;i<el.length;i++){
                    addEvent(el[i],type,fn);
                }
            }else{
                el.addEventListener(type,fn,false);
            }
        };
    }else{
        return function(el,type,fn){
            if(el.length){
                for(var i=0;i<el.length;i++){
                    addEvent(el[i],type,fn);
                }
            }else{
                el.attachEvent('on'+type,function(){
                    return fn.call(el,window.event);
                });
            }
        };
    }
})();

判断处理下就行了