On Jun 28, 2006, at 9:41 PM, Damjan wrote:
>
>> It does have some nice features. I'd like to see all the CSS-selector
>> emulation in MochiKit, but adding properties to or proxying DOM
>> objects is not something I want MochiKit to do.
>
> Yes, that's the single greatest feature of jQuery, the CSS and Xpath
> selector. And it can work on any document. Consider this very easy rss
> reader:
>
> $.get("rss20.xml", got_response);
> function got_response(xml) {
> var items = $("/rss/channel/item", xml);
> items.each( function() {
> var title = $('title', this).get(0).firstChild.nodeValue;
> var link = $('link', this).get(0).childNodes[0].nodeValue;
> $('ul#rss_titles').append( $.LI({}, $.A({href:link},
> title)) );
> });
> };
>
> BTW How would I do this with Mochikit?
It wouldn't be terribly concise. without the CSS/XPath support.
var req = getXMLHttpRequest();
if (req.overrideMimeType) req.overrideMimeType("text/xml");
req.open("GET", url, true);
var d = sendXMLHttpRequest(req);
d.addCallback(function (req) {
var rssElements =
req.responseXML.documentElement.getElementsByTagName("rss");
var rss_titles = getElementsByTagAndClassName("ul", "rss_titles")
[0];
forEach(rssElements, function (rss) {
var channelElements = rss.getElementsByTagName("channel");
forEach(channelElements, function (channel) {
var items = channel.getElementsByTagName("item");
forEach(items, function (item) {
var title = scrapeText(item.getElementsByTagName
("title")[0]);
var link = scrapeText(item.getElementsByTagName
("link")[0]);
appendChildNodes(rss_titles, LI(null, A({href:
link}, title)));
});
});
});
});
Clearly, MochiKit is not currently optimized for finding DOM nodes by
anything more complicated by id.
-bob
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