高手提领 之 Douglas Crockford: "Theory of the DOM"

视频地址：http://video.yahoo.com/people/33385

PPT下载：http://yuiblog.com/assets/crockford/theory.zip

 

the miracle is not miracle

waiting for a hero, or just to be a hero.

 

纠结中的笔记：

 

 

The handler takes an optional event parameter.

Microsoft does not send an event parameter, use the global event object instead.

function (e) {

    e = e || event;

    var target = e.target || e.srcElement;

    ...

}

 

Trickling is an event capturing pattern which provides compatibility with the Netscape 4 model. Avoid it.

Bubbling means that the event is given to the target, and then its parent, and then its parent, and so on until the event is canceled

 

e.cancelBubble = true;

if (e.stopPropagation) {

  e.stopPropagation();

}

 

e.returnValue = false;

if (e.preventDefault) {

  e.preventDefault();

}

return false;