This issue in IE and W3C event registration

Event registration in IE:

ele.attachEvent(‘on‘ + type, fnHandler)

, W3C event registration:

ele.addEventListener(type, fnHandler, false)

, Sometimes we need to reference the current object that calls the event listener in the function reference of event registration (fnhandler here ),

This can be used directly for W3C, for example:

function fnHandler(){    console.log(this);}

This in fnhandler is equivalent to ele.

But it cannot be used in IE. Compatible methods for obtaining target objects are as follows:

function fnHandler(e){    var target = e.target || e.srcElement;    console.log(target);}

The target in fnhandler is equivalent to ele.