Forum: Rails Spinoffs (closed, excessive spam) Can anyone help me with one function please

Hi i'm learning prototype and i need to know something...


Someone knows how to write and get the value of some atribute... i
mean like...jquery that uses $('#sub-div').atrr('alt','visible);

in prototype is there something like that?...

I hope you can help me and thanks :D

Zell,

I'm fairly new to Prototype myself but I believe the syntax you're
looking for is:

$('tag').readAttribute('title');

http://www.prototypejs.org/api/element/readAttribute

-William

That would be:
$('sub-div').writeAttribute({ alt: 'visible' });

-- kangax

or:

$('sub-div').writeAttribute('alt', 'visible');

Hey thanks!! it really helped me a lot!...


One mor thing, have anyone knows...how to tell lik...$$
('.class:visible').not($(this).find('div');


in prototype, i know that there is a function that is findElement();
but..i do not know if there's something like the .not(); that has
jquery... and i'm changin to prototype :D

thanks a lot

I'm not sure what jQuery's .find does, but you can use #reject to find
all "hidden" elements (since prototype.js only supports "standard"
selectors):
$$('.class').reject(Element.visible)
Note that since Element.visible only checks actual element's style, it
will skip any elements which have "hidden" parents.

-- kangax

What initially threw me in jQuery was filter() vs. find().  filter() 
gets
the *subset* of elements that match some selector, where find() gets the 
*
children* of elements that match some selector.

-Fred

On Sun, Jul 6, 2008 at 11:33 AM, kangax <kangax@gmail.com> wrote:

>
> I'm not sure what jQuery's .find does, but you can use #reject to find
> all "hidden" elements (since prototype.js only supports "standard"
> selectors):
> $$('.class').reject(Element.visible)
> Note that since Element.visible only checks actual element's style, it
> will skip any elements which have "hidden" parents.
>
> -- kangax



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