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;