Google gives a lot of AJAX solutions through AJAX APIs that the developers love to use. APIs need a little attention to be implemented.
How do you believe and get courage of using new things until and unless you have a live visual demo of that.
Google as always approaching your needs gave a live Playground to play around Google’s AJAX APIs. You can have live demonstrations and documentations of almost all the available AJAX APIs.
Just play around AJAX APIs Playground.