I appreciate your trying to offer more elegant solutions! However I
don't see how the solution you suggest in any way applies to my
problem. In your examples you are using prototype's match() to test
classes. That is of no help to me whatsoever with the problem I tried
to outline in my OP. Let me try to be more descriptive.
1) I have a link in the page, and the contents of the href attribute
of that link contains information I need. For example:
<a href="#key" id="some_id">Foo</a>
2) The <a> elements id is already known to me, but the 'key' in
href="#key" is not. This key is essential for fetching something from
the server (using AJAX) and updating the page.
3) Using prototype I've added, on page load, an observer to watch for
clicks on that link. When clicked, I want to get the key from the href
and use that in making the AJAX request. Currently, following your
toString() hint from an earlier post, I am using the following to
extract the key from the href:
$('some_id').observe('click', function (el) {
var key = Event.element(el).toString().match(/regex/)[1]; //
better solution for this?
new Ajax.Request(Event.element(el), { ... }); // using key in
there
});
Which is working under Firefox 2 and IE 7. If there is a more robust
solution to get the string value of the href such that I can check it
with a regular expression and extract the key, I would certainly be
open to giving it a try.
Thanks again,
Sean
On Aug 6, 3:55 pm, Tom Gregory <[EMAIL PROTECTED]> wrote:
> On Aug 6, 2007, at 12:00 PM, Gilant wrote:
>
> > On Aug 3, 1:01 pm, Tom Gregory <[EMAIL PROTECTED]> wrote:
> >> Event.element returns an element. Alert-ing it performs an implicit
> >> toString().
>
> > So, why not just call toString() explicitly if the implicit call
> > returns the string desired? Indeed:
> > Event.element(el).toString().match()
>
> 1. Because that implementation is fragile: it depends on a browser-
> specific implementation of an element's toString method.
>
> 2. Because there are easier, faster, more descriptive, and more
> legible ways to do the same thing. The standard DOM methods and
> Prototype's helper methods are good here.
>
> Examples:
>
> // Testing the element is an element node, not a text node:
> $(el).nodeType = 1; // [1]
>
> // Test if element is tr
> $(el).match('tr'); // [2]
> $(el).nodeName == "TR"; // [3]
>
> // Test if element is tr with class "alternateRow"
> $(el).match('tr.alternateRow');
>
> If the explicit toString() call followed by a regex works, that's
> great. I'll still assert there are better was of doing it, but it's
> your app, so do as you like. I'm just offering what I believe is a
> more elegant solution.
>
> TAG
>
> 1.http://zytrax.com/tech/dom/nodetype.html
> 2.http://prototypejs.org/api/element/match
> 3.http://www.javascriptkit.com/domref/nodetype.shtml (part way down)
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