Google AJAX API Library: a turning point for developers
Thursday, May 29, 2008 
Google, in the latter perdiodo, has released a multitude of tools dedicated to developers, continuously updating their releases. Now running out an agreement with popular AJAX framework, and not only to centralize the distribution of libraries jQuery, prototype, script.aculo.us, MooTools and dojo!
In practice, you can access these libraries using the infrastructure and the Google network, with significant benefits in terms of speed and security.
The speed, loading, is guaranteed by the same network that Google and provide per se a distributed server, allowing (by default) loading compressed (gzip / minify) library. The hosting Google closer to the request will be used to send the code and, if not reaching down or temporarily, the Google network will still send the Javascript code!
Using Google AJAX API Library
We can choose two ways to load a library: exploiting google.load() the usual <script> For example, if we have an application that already uses some other Google API (maps, research, translations, etc ...) can exploit the instance of google
- <! - First of all you load the environment ->
- > </script> <script src = "http://www.google.com/jsapi"> </ script>
Now we have an object google available:
- "prototype" , "1.6" ) ; google. load ( "prototype", "1.6");
Note the presence of the version! Google AJAX API Library is also a repository of past - stable - release. But that's not all! The versioning is intelligent. If a library is available in the following release:
- . 1 1. 9. 1
- . 4 1. 8. 4
- . 2 1. 8. 2
Specifying, for example:
- "prototype" , "1.8" ) ; google. load ( "prototype", "1.8");
Will release 1.8.4, which is the last of that revision. Similarly specifying:
- "prototype" , "1" ) ; google. load ( "prototype", "1");
Will release 1.9.1! Fantastico!
Or you can use the following syntax:
- > </script> <script src = "http://ajax.googleapis.com/ajax/libs/prototype/1.6.0.2/prototype.js"> </ script>
Again you can specify the version!
Google itself, however, stresses that the first method, which uses google.load() is the most performed!
Try to believe: and the results are
As always, I felt immediately this news and I have appreciated the benefits immediately. I introduced the Google AJAX API Library on Divoogle.com and e-lementi.com! On this I had a gain in load equal to 30% - tests carried out with PingDom! I also tried the two different methods of loading and, indeed, the use of google.load() much better!
As soon as possible I'll run the test again on undolog.com 
@ Tom IWriteAboutIT said:
Congratulations to the article, I just I just added to my RSS,
Quick Tom
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Francesco Gavello said:
I find that blogs increasingly useful
This technique did not know then and it is really a manna from heaven!
To read!