Generally the jQ object has methods that
- can apply to the entire selected array of elements. Some extra
methods are included for completeness - e.g. attr("href","#") sets the
href attribute on all selected elements, but attr("href") will return the
href value of the first selected element.
- extend the DOM object functionality (e.g. all the traversal methods
- find, parents, siblings, filter), are really convenient (e.g. hide -
basically just sets style.display="hidden" on a bunch of elements), or
encapsulate complex code in a simple method (e.g. load - uses ajax to
load a web page and puts it in the selected elements)
As Matt said, DOM by itself is a lot faster, so if you don't need the extra
jQ stuff it's better to not use it.
Blair
On 12/13/06, Robert James <[EMAIL PROTECTED]> wrote:
I see. Thanks for the clarification.
As a newcomer, I will say that this should be shown in the
docs/examples. I had to undergo a lot of trial, error, and head
scratching before I figured this out. (I don't think any of the docs
for $().each() show this).
BTW, what things do you need the DOM ,Object for, that you can't use
the JQ Object? Why?
On 12/12/06, Christof Donat <[EMAIL PROTECTED]> wrote:
> Hi,
>
> > Why do I need to wrap the this with $(this) - (when using
$('#...').each) -
> > why isnt' that done automatically?
>
> Most of the time you use each(), because you want to access the DOM
Objects.
> That is exactly what you get as this. In most cases you need a jQuery
Object
> you can do your work outside of each().
>
> Christof
>
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