Even with compression enabled, the Ext JS library and CSS files are still quite large. So, we will look at reducing the size of the source files using the JSBuilder2 utility.
Up to this point, the APEX page templates we have developed included the
Early versions of Ext required one of the following base libraries to be included:
Ext contains adapters that provide some of the basic plumbing utilities from those libraries, including Ajax support, animation, ...