Javascript

Can a web based RSS Reader replace the desktop RSS apps?

Shahedul Huq Khandkar — Thu, 24 Aug 2006 13:49:00 GMT

Recently, Pageflakes released their new RSS Reader. It provides all the features of a good desktop RSS reader and with AJAX, it gives you the smoothness of regular desktop reader. The good thing of a web application is that you don't have to install it in your PC and you can use it from anywhere.

The reader has two view modes: Outlook View & Newspaper View. In both view mode, you can resize the panes just like any desktop application. You can also use hotkeys for navigation. At the bottom, there are a number of options for sorting, marking the articles read/unread etc.

The reader also has option to save articles. You can save unlimited number of articles (in beta version). Even after few months or even years, you can still keep you feeds. Pageflakes also archives old feeds for a period of time. So, if you are busy for a day and couldn't read your favorite articles, it will be saved there for you. The Forward article option allows you to share your articles with others.

This RSS Reader is actually a part of the RSS flake. You can import your OPML or add feeds directly into the page or save as bookmark. The pre-caching feature is coming soon. With that, you can configure the reader to download feeds in background and read articles even smoother.

FireFox error: [Exception... "'Permission denied to set property XULElement.selectedIndex' ...

Shahedul Huq Khandkar — Mon, 14 Aug 2006 19:48:00 GMT

Finally I found a simple solution for the FireFox error:

"[Exception... "'Permission denied to set property XULElement.selectedIndex' when calling method: [nsIAutoCompletePopup::selectedIndex]" nsresult: "0x8057001e (NS_ERROR_XPC_JS_THREW_STRING)"

This error occurs when focus() is called. I was reported in https://bugzilla.mozilla.org/show_bug.cgi?id=236791 but still no fix/patch from mozilla.
To avoid this error, you have to turn off autocomplete.

from javascript, you can do that in following way: obj.setAttribute('autocomplete','off');

Or, you can simply set autocomplete="off" in HTML.

How to optimize javascript

Shahedul Huq Khandkar — Sat, 01 Jul 2006 12:14:00 GMT

Today, I have read a useful article which explains the performance issues for javascript execution on Opera. I think, this is also applicable for regular javascript execution on other browsers too.

http://userjs.org/help/tutorials/efficient-code