JavaScript Event learning addendum addEventSimple_javascript skills

Copy code The code is as follows:

function addEventSimple(obj,evt,fn) {
if ( obj.addEventListener)
obj.addEventListener(evt,fn,false);
else if (obj.attachEvent)
obj.attachEvent('on' evt,fn);
}

removefunctionSimple(obj,evt,fn) {
if (obj.removeEventListener)
obj.removeEventListener(evt,fn,false);
else if (obj.detachEvent)
obj .detachEvent('on' evt,fn);
}

Usage is as follows:

Copy code The code is as follows:

addEventSimple(element,'click',functionname);
addEventSimple(document,'load',functionname2);

Now if the element element is clicked, functionaname will be triggered. The same document also has onload event handler functionname2.

Defect: The this keyword in IE does not point to the element that triggers the event as you imagine, but points to the entire document.

Original address: http://www.quirksmode.org/js/eventSimple.html

I went back to my hometown for the New Year, so I can’t publish it in time. I will continue next year. Happy New Year everyone!

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Author: Beiyu (tw:@rehawk)
Article source: beiyu.cnblogs.com