Thursday, May 24th, 2007

Dow Jones Index Ajaxified

Category: Sencha, Showcase

The Dow Jones index site has a new look. They have taken Ext JS and as Claude Betancourt says: “use Ext 1.0 to render the Dow Jones Indexes intraday grid on the homepage and search results page as well as some utilities behind the scenes.”

Dow Jones Index Page Update

Posted by Dion Almaer at 7:42 am

4.3 rating from 74 votes


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Way to go, Jack!

Comment by mdm-adph — May 24, 2007

Great News!

Comment by jdalton — May 24, 2007


Comment by Калоян К. Цветков — May 24, 2007

The time perios selection needs a progress bar, otherwise the user feedback is too long…

Comment by rtg — May 24, 2007

Looks pretty slick to me. Ext is a really fun library.

Comment by Adam Sanderson — May 24, 2007

A bit slow but otherwise looks cool and attractive!

Comment by Jordan — May 24, 2007

It’s so slow that it’s almost unusable. This may go as one of the examples of AJAX done wrong.

Comment by Atif Khan — May 24, 2007

It looks nice. However, there is a performance hit when using a big library such as Ext. JS

Comment by Khanh — May 24, 2007

Website is too slow to use. What was Dow Jones thinking?

Comment by Slobodon — May 24, 2007

They could have gzipped the source or something, thats not Ext’s fault. As for the performance, I dont see the slow down..

Comment by todd — May 24, 2007

super slick. Ext JS is personally my top choice among all similar frameworks out there. We will use that soon, really looking forward to achieve similar functionalities.

Comment by Liming — May 24, 2007

Ext JS is so sexy! And as others have pointed out, one should definitely gzip the source when using Ext JS :)

Comment by Joakim — May 24, 2007

For the first time in 2 years, i can’t wait for ‘something’ 2.0… ExtJS2.0 looks so promising. Congratulations Jack.

Comment by Miguel Benevides — May 24, 2007

Definitely looks great, but takes a long time to load and heavily chugs my cpu in certain cases (especially when the modal window is popped up).

Comment by Meh — May 25, 2007

There’s a problem with the “modal” dialog (one that probably affects most of the widget libraries) – it isn’t actually modal I can still navigate by tabbing through the links on the page… but it is good to see these types of widget toolkits in the main stream.

Comment by Dave — May 25, 2007

Well, the combined load ext is adding to the download is around 140kb. Those of you with firebug may want to check the network tab. The site could definitely use more use of css sprites to cut down on the requests for a single page load.

The data appears to be loaded after the initial page load. I imagine it’s a lot of data processed server side (being the dow jones index) so you’re going to have to wait for that too.

They’re also returning the data in XML. Ext has great support for JSON which would cut the amount of data sent back by the server.

Overall, it looks nice. It’s a good example of Ext. And I bet they could cut load times a lot by optimizing their pages more.

Comment by Joe — May 25, 2007

Ext has a known slowdowns with Fire Bug enabled. Disable it and it should speed up!

Comment by TopKatz — May 29, 2007

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