Wednesday, October 5, 2011

Google Analytics code in external .js file

Google Analytics JavaScript code does not have to be inline. New, asynchronous GA tracker can be as well invoked from external JavaScript file with no - at least noticeable - impact on performance.

I have read on one of the forums that with putting GA code in an external file you lose the benefit of asynchronous architecture which is quite obviously bollocks. One of the main benefits mentioned on Google Analytics help page is that you can start tracking user events even before the tracking code loads and you still have that! The GA JavaScript still loads in the background and the page load time is as with inline Google Analytics code.
The best thing is that there is nothing special you have to do. Just get the JavaScript code generated in your Google Analytics account and instead of pasting it directly onto the page paste it into .js file and refer to that file from your page. More or less as follows.
On your page
<script src="file_containing_google_analytics.js" type="text/javascript"></script>
Inside the file_containig_google_analytics.js:
  var _gaq = _gaq || [];
  _gaq.push(['_setAccount', 'UA-XXXXXXX-X']);

(function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
Have fun!

Saturday, March 12, 2011

iPhone 4.2 and Ubuntu 10.10 - mount problem with dbus

I can't believe it's been nearly half a year since my last post. Anyways. It so happened that I was stuck with a large video on my iPhone. I wanted to download it however my iTunes had different opinion and refused to deal with it. As I'm running Ubuntu 10.10 on my laptop I have decided to try my luck in there.

I have plugged my iPhone in and to my dismay my beloved Ubuntu threw ugly DBus error in my face saying iPhone could not be mounted. I should've taken a screenshot but hey, who wants to remember error messages? Nevertheless after some googling I have discovered that iOS 4.2 requires libimobiledevice1 package upgrade to version 1.0.4. Unfortunately official stable repos offer version 1.0.1 at the moment but it's nothing to worry about, though. Thanks to Paul McEnery you can benefit from your iPhone 4.2 connected successfully to your Ubuntu machine. Just add the PPA in command line:
sudo apt-add-repository ppa:pmcenery/ppa
next do the update:
sudo apt-get update
and then install/upgrade the library and other tools if necessary. Thanks for reading. I hope you found it helpful. Jacek