Why is that JQuery live() works while delegate() not working?

Question

The code I'm dealing with is too complicated so I can't paste my codes here.

But the situation I met is taht: A .js file being included in two different htmls,
In one html the delegate() worked but in the other just no effect.
Then I replace delegate() with live() , and then in both html it worked fine.

I'm just curious why this happend..
May it because I included too many different js files in the two htmls and may be causing some conflict?

Answer 1

You have to rember that when you delegate() to some element that element must be present in the dom when you call delegate.

So if you call

 $('#mycontainer').delegate(....

the element with id mycontainer must be present otherwise delegate() won't work. One workaround that cause some overhead is delegating to the document or to the body :

 $('body').delegate()

Live() always works because in reality you are delegating to the body.